Rear floor panel (1) for an automotive vehicle made from a single metallic blank and comprising reinforced rear and front side portions (11L), (11R), (12L), (12R) compared to the center rear and front portions (11C), (12C). Rear structural assembly (2) comprising a rear floor panel (1) as previously described assembled onto a rear underfloor structure (3), comprising itself a right and left side member (3L), (3R) linked together by at least one cross member (3C).
A method for estimating the temperature of a steel product including a calibration step wherein the intensities at 5 wavelengths ranging from 0.9 to 2.1 μm are recorded for several measurement condition and spectral attenuation coefficients are computed, a measurement step wherein the intensities at said 5 wavelengths are recorded and spectral attenuation coefficients are computed for several temperatures and a comparison step wherein a probability test is performed to estimate the steel product temperature.
G01J 5/00 - Pyrométrie des radiations, p.ex. thermométrie infrarouge ou optique
G01J 5/10 - Pyrométrie des radiations, p.ex. thermométrie infrarouge ou optique en utilisant des détecteurs électriques de radiations
G01J 5/52 - Pyrométrie des radiations, p.ex. thermométrie infrarouge ou optique en utilisant la comparaison avec des sources de référence, p.ex. pyromètres à disparition de filament
G01J 5/80 - Pyrométrie des radiations, p.ex. thermométrie infrarouge ou optique Étalonnage
3.
Hot-Formed Previously Welded Steel Part with very High Mechanical Resistance and Production Method
A welded steel part with a very high mechanical strength is provided. The welded steel part is obtained by heating followed by hot forming, then cooling of at least one welded blank obtained by butt welding of at least one first and one second sheet. The at least one first and second sheets including, at least in part, a steel substrate and a pre-coating which includes an intermetallic alloy layer in contact with the steel substrate, topped by a metal alloy layer of aluminum or aluminum-based alloy. A method for the fabrication of a welded steel part and the fabrication of structural or safety parts for automotive vehicles are also provided.
B23K 31/02 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs au brasage ou au soudage
B23K 26/32 - Assemblage tenant compte des propriétés du matériau concerné
B23K 35/02 - Baguettes, électrodes, matériaux ou environnements utilisés pour le brasage, le soudage ou le découpage caractérisés par des propriétés mécaniques, p.ex. par la forme
B23K 35/30 - Emploi de matériaux spécifiés pour le soudage ou le brasage dont le principal constituant fond à moins de 1550 C
B23K 35/38 - Emploi d'environnements spécifiés, p.ex. d'atmosphères particulières entourant la zone de travail
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
C21D 9/48 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles tôles embouties
C21D 9/50 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour joints de soudure
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
Rear floor panel (1) for an automotive vehicle made from a single metallic blank and comprising reinforced rear and front side portions (11L), (11R), (12L), (12R) compared to the center rear and front portions (11C), (12C). Rear structural assembly (2) comprising a rear floor panel (1) as previously described assembled onto a rear underfloor structure (3), comprising itself a right and left side member (3L), (3R) linked together by at least one cross member (3C).
A method of forming a hot stamped coated steel product includes providing a precoated steel strip, the precoated steel strip including a base steel having a first side and a second side, and a precoating on at least one of the first side and the second side, the precoating being made of aluminum or an aluminum alloy; heating the precoated steel strip in a furnace, wherein the precoated strip experiences a temperature rise at a heating rate (Vc) between 4° and 12° C./s, wherein Vc is a mean heating rate between 20 and 700 C; removing the heated precoated steel strip from the furnace; and then hot stamping the precoated strip to deform the precoated steel strip into a hot stamped coated steel product, the hot stamped coated steel product having a coating including, proceeding from the base steel outwards: (a) an interdiffusion layer, (b) an intermediate layer, (c) an intermetallic layer, and (d) a superficial layer.
A galvannealed steel sheet ontainabel by a method including the provision of a specific steel sheet, a recrystallization annealing with specific heating, soaking and cooling sub-steps using an inert gas, a hot-dip galvanizing and an alloying treatment.
C22C 38/14 - Alliages ferreux, p.ex. aciers alliés contenant du titane ou du zirconium
C22C 38/38 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
C22C 38/42 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/44 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/46 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du vanadium
C22C 38/48 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/50 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/54 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du bore
C22C 38/58 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergé; Appareils à cet effet
C23C 2/02 - Pré-traitement du matériau à revêtir, p.ex. pour le revêtement de parties déterminées de la surface
C23C 2/04 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergé; Appareils à cet effet caractérisé par le matériau de revêtement
A coated steel sheet and press hardened steel part having a composition including, by weight percent: C 0.26-0.40%, Mn 0.5-1.8%, Si 0.1-1.25%, Al 0.01-0.1%, Cr 0.1-1.0%, Ti 0.01-0.1%, B 0.001-0.004%, P 0.020%, S 0.010%, N 0.010% the remainder of the composition being iron and unavoidable impurities resulting from the smelting. The press hardened steel part includes a bulk having a microstructure including, in surface fraction, more than 95% of martensite and less than 5% of bainite, a coating layer at the surface of the steel part, a ferritic interdiffusion layer between the coating layer and the bulk, and a ratio between the ferritic grain width in the interdiffusion layer GWint over prior austenite grain size in the bulk PAGSbulk, satisfying following equation (GWint/PAGSbulk)−1≥30%.
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 8/04 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes pour produire des produits plats ou des bandes pour l'emboutissage profond
A method of production of a coated steel substrate including of the steps to have a steel substrate; performing electroplating of the steel substrate with an electroplating solution having a pH of from 2 to 6 and containing 100 g/l to 500 g/l of NiSO4 and 1 g/l to 15 g/l of MoS2, by applying a current density from 15 A/dm2 to 45 A/dm2 during 30 seconds to 300 seconds to generate a layer of Ni—MoS2 coating; thereafter, rinsing the steel substrate and drying it to obtain a coated steel substrate.
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
The invention relates to a steel substrate coated on at least one of its faces with a metallic coating based on zinc or its alloys wherein the metallic coating is itself coated with a conversion layer comprising:
zincsulphate hydrate,
aluminium in an amount up to 14 mg·m−2,
wherein the conversion layer comprises neither zinc hydroxysulphate, nor free water molecules nor any compounds having free hydroxyl groups, the surface density of sulphur in the conversion layer being greater than or equal to 5.0 mg/m2. The invention also relates to the corresponding treatment method.
C23C 28/00 - Revêtement pour obtenir au moins deux couches superposées, soit par des procédés non prévus dans un seul des groupes principaux , soit par des combinaisons de procédés prévus dans les sous-classes et
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
Dash panel assembly (1) for an automotive vehicle (100) consisting of a lower dash panel (21) and an upper dash panel (22), such that: -said lower and upper dash panels (21, 22) are each made by forming a single metallic sheet, -said lower dash panel (21) further comprises a lower portion (211) and an overlap portion (212), -said upper dash panel (22) further comprises an upper portion (221) and an overlap portion (222), -once assembled to form the dash panel assembly (1), the dash panel lower and upper (21, 22) overlap each other in their respective overlap portion (212, 222) to form the overlap portion (12) of the dash panel assembly and do not overlap each other in the lower portion of the lower dash panel (211) and the upper portion of the upper dash panel (221).
Dash panel assembly (1) for an automotive vehicle (100) consisting of a lower dash panel (21) and an upper dash panel (22), such that: -said lower and upper dash panels (21, 22) are each made by forming a singlemetallic sheet, -said lower dash panel (21) further comprises a lower portion (211) and anoverlap portion (212), -said upper dash panel (22) further comprises an upper portion (221) and anoverlap portion (222), -once assembled to form the dash panel assembly (1), the dash panel lower andupper (21, 22) overlap each other in their respective overlap portion (212, 222) to form the overlap portion (12) of the dash panel assembly and do not overlap each other in the lower portion of the lower dash panel (211) and the upper portion of the upper dash panel (221)
B21B 1/40 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilés; Séquence des opérations dans les trains de laminoirs; Installation d'une usine de laminage, p.ex. groupement de cages; Succession des passes ou des alternances de passes pour laminer des feuillards présentant des problèmes particuliers, p.ex. à cause de leur faible épaisseur
B21B 3/02 - Laminage des alliages ferreux particuliers
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
A first subject of the present invention has an antiviral formulation with metallic copper particles in an unoxidized form and having a median particle diameter inferior or equal to 200 nm, graphene oxide or reduced graphene oxide, and a bonding matrix material. A second subject of the invention has an antiviral filtering material with a layer of textile and at least one layer of an antiviral coating comprising metallic copper particles in an unoxidized form and having a median particle diameter inferior or equal to 200 nm, graphene oxide or reduced graphene oxide, and a bonding matrix into which both metallic copper particles and graphene oxide or reduced graphene oxide are anchored. The invention also concerns methods of preparation of the antiviral formulation and of the antiviral filtering material. Finally, the invention includes an antiviral face mask with a layer of textile coated with the antiviral formulation.
A01P 1/00 - Désinfectants; Composés antimicrobiens ou leurs mélanges
A41D 31/30 - Matériaux spécialement adaptés aux vêtements de dessus caractérisés par une fonction ou une utilisation particulières antimicrobiens, p.ex. antibactériens
A62B 23/02 - Filtres en vue de la protection des voies respiratoires pour appareils respiratoires
B22F 1/103 - Poudres métalliques contenant des agents lubrifiants ou liants; Poudres métalliques contenant des matières organiques contenant un liant organique comprenant un mélange de, ou obtenu par réaction de, plusieurs composants autres que les solvants ou les agents lubrifiants
B22F 1/16 - Particules métalliques revêtues d'un non-métal
D06M 11/74 - Traitement des fibres, fils, filés, tissus ou des articles fibreux faits de ces matières, avec des substances inorganiques ou leurs complexes; Un tel traitement combiné avec un traitement mécanique, p.ex. mercerisage avec du carbone ou ses composés avec des acides graphitiques ou leurs sels
D06M 11/83 - Traitement des fibres, fils, filés, tissus ou des articles fibreux faits de ces matières, avec des substances inorganiques ou leurs complexes; Un tel traitement combiné avec un traitement mécanique, p.ex. mercerisage avec des composés libérant des métaux, p.ex. des métaux-carbonyles; Réduction de composés métalliques sur des textiles
D06M 15/263 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone d'acides carboxyliques non saturés; Leurs sels ou esters
D06M 15/564 - Polyurées, polyuréthanes ou autres polymères comportant des liaisons uréide ou uréthane; Leurs précurseurs précondensés
D06M 16/00 - Traitement biochimique des fibres, fils, filés, tissus ou articles fibreux faits de ces matières, p.ex. enzymatique
The invention relates to sealing lock (5) for a vacuum deposition facility of a coating on a running metal strip following a running path (P), comprising walls (6) and at least three pairs of rolls, inside said walls (6), wherein - each pair of rolls of said at least three pairs of rolls - comprises a roll (7) with a metal surface and a roll (8) with an elastomer surface layer (9), having a thickness from 3 to 30 mm, forming a gap from 1 to 11 mm, - the rolls with an elastomer surface layer of two successive pairs of rolls are on opposite sides of said running path (P).
The invention relates to sealing lock (5) for a vacuum deposition facility of a coating on a running metal strip following a running path (P), comprising walls (6) and at least three pairs of rolls, inside said walls (6), wherein - each pair of rolls of said at least three pairs of rolls - comprises a roll (7) with a metal surface and a roll (8) with an elastomer surface layer (9), having a thickness from 3 to 30 mm, forming a gap from 1 to 11 mm, - the rolls with an elastomer surface layer of two successive pairs of rolls are on opposite sides of said running path (P).
A method for collecting mill scale from a hot rolling mill is provided. The hot rolling mill includes a flume. The method includes transporting mill scale particles in wastewater, retrieving the wastewater from a flume of the hot rolling mill and separating the mill scale particles from the wastewater using a separator. A hot rolling mill and a method for retrofitting a hot rolling mill are also provided.
B01D 21/26 - Séparation du sédiment avec emploi de la force centrifuge
B01D 21/00 - Séparation par sédimentation de particules solides en suspension dans des liquides
B01D 21/24 - Mécanismes d'alimentation ou d'évacuation pour bacs de décantation
B21B 1/26 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilés; Séquence des opérations dans les trains de laminoirs; Installation d'une usine de laminage, p.ex. groupement de cages; Succession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies selon un processus continu par laminage à chaud
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/38 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par séparation centrifuge
A tin coated steel sheet is provided for manufacturing a drawn can having: a thickness inferior to 0.7 mm, a yield strength inferior to 400 MPa, an average grain aspect ratio below 1.5, a strain hardening coefficient below 1.5, a tin coating from 0.5 to 4.0 g·m−2 on a first face and from 2.8 to 11.2 g·m−2 on a second face, a chemical composition comprising in weight percent 0.002≤C≤0.09 and 0.0015≤B≤0.005 and a balance of Fe and unavoidable impurities, and the steel sheet having a ferritic microstructure with a mean grain size from 5 to 15 μm.
C21D 8/04 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes pour produire des produits plats ou des bandes pour l'emboutissage profond
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
A hot-stamped coated steel part comprising a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer, the total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition: 40 ≤ Epc ≤ 80 with (a). The hot-stamped coated steel part comprises an undeformed portion having a thickness ePflat from 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dC in the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks dCmin(ePflat) defined as: (b)
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
B32B 15/02 - Produits stratifiés composés essentiellement de métal autrement que sous forme de feuille, p.ex. en fils, en parcelles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C23C 2/02 - Pré-traitement du matériau à revêtir, p.ex. pour le revêtement de parties déterminées de la surface
C23C 2/28 - Post-traitement thermique, p.ex. par traitement dans un bain d'huile
A low density cold rolled and annealed steel sheet having 0.12%≤carbon≤0.25%, 3%≤manganese≤10%, 3.5%≤aluminum≤6.5%, 0%≤phosphorus≤0.1%, 0%≤sulfur≤0.03%, 0%≤nitrogen≤0.1%, 0%≤silicon≤2%, 0.01%≤niobium≤0.03%, 0.01%≤titanium≤0.2%, 0%≤molybdenum≤0.5%, 0%≤chromium≤0.6%, 0.01%≤copper≤2.0%, 0.01%≤nickel≤3.0%, 0%≤calcium≤0.005%, 0%≤boron≤0.01%, 0%≤Magnesium≤0.005%, 0%≤Zirconium≤0.005%, 0%≤Cerium≤0.1%, and the balance including iron, the steel sheet having a microstructure comprising 60% to 90% Delta ferrite, 8% to 30% of residual austenite having average grain size between 0.6 and 2 microns, 1.0% to 10% of alpha-ferrite having average grain size between 0.6 and 2 microns and 0% to 2% of kappa precipitates (Fe,Mn)3AlCx, where x is strictly lower than 1.
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 8/00 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique
24.
A COLD ROLLED MARTENSITIC STEEL AND METHOD OF PRODUCING THEREOF
A martensitic steel sheet comprising the following elements 0.07% ≦ C ≦ 0.12%; 1.9% ≦ Mn ≦ 2.5 %; 0.2% ≦ Si ≦ 0.6%; 0.01% ≦ Al ≦ 0.1%; 0.1% ≦ Cr ≦ 0.5%; 0.2% ≦ Mo ≦ 0.6%; 0% ≦ S ≦ 0.09%; 0% ≦ P ≦ 0.09%; 0% ≦ N ≦ 0.09%; 0.001% ≦ Ti ≦ 0.1%; 0.0005% ≦ B ≦ 0.005%; 0% ≦ Nb ≦ 0.1%; 0% ≦ V≦ 0.1%; 0% ≦ Ni ≦ 1%; 0% ≦ Cu ≦ 1%; 0% ≦Sn≦ 0.1%; 0% ≦ Pb≦ 0.1%; 0% ≦ Sb≦ 0.1%; 0.001% ≦ Ca≦ 0.01%; the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel consisting of, by area percentage, Tempered martensite from 80 % to 94% and Fresh martensite from 6% to 20%.
C22C 38/26 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du niobium ou du tantale
C22C 38/28 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du bore
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 1/18 - Durcissement; Trempe avec ou sans revenu ultérieur
A hot-stamped coated steel part comprising a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer, the total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfying the following condition: 16 ≤ Epc < 40 with (a). The hot-stamped coated steel part comprises an undeformed portion having a thickness ePflat from 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dC in the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks dCmin(ePflat) defined as: (b)
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
B32B 15/02 - Produits stratifiés composés essentiellement de métal autrement que sous forme de feuille, p.ex. en fils, en parcelles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C23C 2/02 - Pré-traitement du matériau à revêtir, p.ex. pour le revêtement de parties déterminées de la surface
C23C 2/28 - Post-traitement thermique, p.ex. par traitement dans un bain d'huile
F27B 9/06 - Fours dans lesquels la charge est déplacée mécaniquement, p.ex. du type tunnel; Fours similaires dans lesquels la charge se déplace par gravité chauffés électriquement
F27D 17/00 - Dispositions pour l'utilisation des chaleurs perdues; Dispositions pour l'utilisation ou pour l'élimination des gaz usés
F27D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
27.
STEEL SHEET WITH VARIABLE THICKNESS HAVING A REDUCED RISK OF DELAYED FRACTURE AFTER PRESS HARDENING, A PRESS HARDENING METHOD, A PRESS HARDENED COATED STEEL PART
A coated steel sheet with variable thickness in the rolling direction, having at least one portion rolled at a rolling ratio from 1 to 60%, wherein the coating comprises zinc, silicon, magnesium, up to 3.0% of iron, optional elements chosen from Ni, Zr, Hf, Sr, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, or Bi, the content by weight of each element being less than 0.3%, optionally up to 100 ppm of calcium, and unavoidable impurities up to 0.02 %, the balance being aluminum.
C21D 9/00 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
C21D 8/00 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 8/04 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes pour produire des produits plats ou des bandes pour l'emboutissage profond
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
B21B 1/38 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilés; Séquence des opérations dans les trains de laminoirs; Installation d'une usine de laminage, p.ex. groupement de cages; Succession des passes ou des alternances de passes pour laminer des feuilles de longueur limitée, par ex. des feuilles pliées, des feuilles superposées
B21D 22/02 - Estampage utilisant des dispositifs ou outils rigides
C22C 21/10 - Alliages à base d'aluminium avec le zinc comme second constituant majeur
C22C 21/02 - Alliages à base d'aluminium avec le silicium comme second constituant majeur
C22C 21/06 - Alliages à base d'aluminium avec le magnésium comme second constituant majeur
The aim of the present invention is to provide a coated steel sheet providing cathodic protection and suitable for manufacturing a press hardened part with good powdering resistance during press-hardening and good corrosion performance. The present invention relates to a method for the manufacture of hardened parts starting from a steel sheet coated with a metallic coating. The part has good characteristics with respect to corrosion and powdering resistance. The invention is particularly well suited for the manufacture of automotive vehicles.
A steel sheet, coated with a metallic coating comprising, by weight percent, from 7.5 to 9.0 % of zinc, from 1.1 to 4.0 % of silicon, from 1.1 to 8.0 % of magnesium, up to 3.0% of iron, optional elements chosen from Pb, Ni, Zr, or Hf, the content by weight of each element being less than 0.3%, optionally up to 100 ppm of Calcium and unavoidable impurities up to 0.02 %, the balance being aluminum, and wherein the coating weight of said metallic coating is from 50 to 500 g/m² for the sum of both sides of said steel sheet.
F27B 9/06 - Fours dans lesquels la charge est déplacée mécaniquement, p.ex. du type tunnel; Fours similaires dans lesquels la charge se déplace par gravité chauffés électriquement
F27D 17/00 - Dispositions pour l'utilisation des chaleurs perdues; Dispositions pour l'utilisation ou pour l'élimination des gaz usés
F27D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
31.
STEEL SHEET WITH VARIABLE THICKNESS HAVING A REDUCED RISK OF DELAYED FRACTURE AFTER PRESS HARDENING AND METHOD FOR MANUFACTURING THE SAME
A coated steel sheet with variable thickness in the rolling direction, having one portion rolled at a rolling ratio from 1 to 60% and at least another portion rolled at a different rolling ratio, wherein the coating comprises zinc, silicon, magnesium, up to 3.0 wt % of iron, optional elements chosen from Ni, Zr, Hf, Sr, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, or Bi, the content by weight of each of the optional element being less than 0.3 wt %, optionally up to 100 ppm of calcium, and unavoidable impurities up to 0.02 wt %, the balance being aluminum, said coating having a coating weight from 50 to 500g/m² for the sum of both sides before flexible rolling.
C21D 9/00 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
C21D 8/00 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 8/04 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes pour produire des produits plats ou des bandes pour l'emboutissage profond
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C23C 28/00 - Revêtement pour obtenir au moins deux couches superposées, soit par des procédés non prévus dans un seul des groupes principaux , soit par des combinaisons de procédés prévus dans les sous-classes et
B21D 22/02 - Estampage utilisant des dispositifs ou outils rigides
B21D 35/00 - Procédés combinant les méthodes de traitement couvertes par les groupes
32.
METHODS FOR PREPARATION OF SHEETS TO BE USED FOR FABRICATION OF A WELDED STEEL BLANK AND FABRICATING A WELDED BLANK
A method for the preparation of steel sheets for fabricating a welded steel blank is provided. The method includes a step of removing at least part of the first and second metal alloy layers in first and second peripheral zones of pre-coated steel first and second sheets, respectively, by simultaneously ablating the first and second precoatings in the first and second peripheral zones of the pre-coated steel first and second sheets to define first and second ablation zones, the first and second peripheral zones being zones of the first and second principal faces closest to the median plane and located on either side of the median plane.
B23K 26/26 - Soudage de joints continus rectilignes
B23K 26/322 - Assemblage tenant compte des propriétés du matériau concerné faisant intervenir des parties métalliques
B23K 26/348 - Travail par rayon laser, p.ex. soudage, découpage ou perçage en combinaison avec du soudage ou du découpage couvert par les groupes , p.ex. en combinaison avec le soudage par résistance en combinaison avec du soudage à l'arc, p.ex. en atmosphère inerte avec électrode tungstène [TIG], en atmosphère inerte avec électrode métal [MIG] ou du soudage plasma
B23K 9/173 - Soudage ou découpage à l'arc utilisant des gaz de protection et une électrode consommable
B23K 26/211 - Assemblage par soudage avec interposition de matériau particulier pour faciliter la connexion des parties
B23K 9/167 - Soudage ou découpage à l'arc utilisant des gaz de protection et une électrode non consommable
B23K 26/40 - Enlèvement de matière en tenant compte des propriétés du matériau à enlever
B23K 26/361 - Enlèvement de matière pour l'ébarbage ou l'ébavurage mécanique
B23K 28/02 - Procédés ou appareils combinés pour le soudage ou le découpage
B23K 26/32 - Assemblage tenant compte des propriétés du matériau concerné
33.
STEEL SHEET HAVING EXCELLENT CORROSION PROPERTIES AFTER PRESS HARDENING AND METHOD FOR MANUFACTURING THE SAME
A steel sheet, coated with a metallic coating comprising, by weight percent, from 6.0 to 10.0 % of zinc, from 1.1 to 4.0 % of silicon, from 1.1 to 8.0 % of magnesium, up to 3.0% of iron, optional elements chosen from Pb, Ni, Zr, or Hf, the content by weight of each element being less than 0.3%, optionally up to 100 ppm of Calcium and unavoidable impurities up to 0.02 %, the balance being aluminum.
The aim of the present invention is to provide a coated steel sheet providing cathodic protection and suitable for manufacturing a press hardened part with good powdering resistance during press-hardening and good corrosion performance. The present invention relates to a method for the manufacture of hardened parts starting from a steel sheet coated with a metallic coating. The part has good characteristics with respect to corrosion and powdering resistance. The invention is particularly well suited for the manufacture of automotive vehicles.
09 - Appareils et instruments scientifiques et électriques
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
19 - Matériaux de construction non métalliques
37 - Services de construction; extraction minière; installation et réparation
38 - Services de télécommunications
39 - Services de transport, emballage et entreposage; organisation de voyages
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Common metals and their alloys; Steel, unwrought or semi-wrought, including the following products: Stainless steel, Carbon steels, Stainless steel, Galvanized Steel, Electro-galvanized steel, prelacquered steel; Cast iron, unwrought or semi-wrought; Scrap metal (scrap iron); Tinplate, Iron produced through direct reduction and direct-reduced iron; metal ores, including crude or prepared ores; Metal materials for construction; Shaped metal sections, Sheet piles and joists of metal; Reinforcing materials, of metal, for concrete; Metal facing panels for construction; Floors of metal, Floor tiles, of metal, Partitions of metal, Metal multi-layered panels, Metal cladding, Cladding and roofing of metal for construction, Tiles of metal; Buildings, transportable, of metal, including the following products: Shelters of metal; Materials of metal for railway tracks, including rails and parts therefor; Non-electric cables and wires of common metal, including soldering wire of metal and barbed wire; Pipes and tubes of metal; Metal hardware; Grilles of metal; Fencing of metal, coated or uncoated latticework and wire cloth of metal (building materials); Metal springs; Sheets and plates of metal, Sheet metal sandwich panels and multi-layered goods of metal, not included in other classes; Armour; Frameworks of metal; Tanks and containers of metal; Boxes made of metal, not included in other classes; Tins of metal and lids of metal therefor, including the following products: Drink boxes; Packaging of common metal and of tinplate; Foundry moulds of metal; Bars, Sheets, plates, Foil, Skelps, Discs, Coils, Profiled bands, Poles, Beams, Strips, Ingots and Forging ingots; Balls of steel; Iron slabs; Metal forgings, Metal mouldings, Cast, moulded, stamped, machined parts of metal or Welded metal parts, The aforesaid goods being for use in all industries. Machines and machine tools, Namely rolling mills; (parts of machines), namely: Rolling mill cylinders; Continuous metal casting machines, Cutting machines, Machines for shaping, flame cutting, machining, welding, planing and embossing metals, sheet metal and plates of metal; Parts of metal for vehicle engines, not included in other classes; Machine coupling and transmission components (except for land vehicles). Scientific, weighing, measuring, signalling, checking, teaching and instructional apparatus and instruments; Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; Apparatus for recording, transmission or reproduction of sound or images; Optical and magnetic image and sound recording media; Compact discs; Apparatus and instruments for measuring, checking, analysis and supervision of the quality of materials and in particular of metallurgical goods and steels; Data processing equipment; Software; Multimedia training apparatus; Magnetic and optical media, media for images and sound; Solar panels and photovoltaic panels. Vehicles for use on land, Marine vehicles, Watercraft and apparatus for locomotion by land, sea or water; Parts of metal for vehicles, not included in other classes; Bodywork and bodywork parts; Bumpers, bonnets, suspensions for land vehicles, sleepers, chassis, wheels, axles of metal, front and rear vehicle trains, and motors and engines, all for land vehicles. Building materials (non-metallic), including slabs, plates, sidings, flooring, coverings, cladding, sandwich panels, profile sections, multilayer panels and partitions; Reinforcing materials, not of metal, for building; Non-metallic transportable buildings, including shelters and parts of shelters not of metal; Rigid pipes, not of metal; Monuments, not of metal. Building consultancy, Also in relation to the following fields: Selection and use of steels. Providing access to websites on the Internet. Distribution [transport] of goods; Merchandise packaging; Storage and warehousing of goods. Treatment of materials, namely Treatment of metal, Treatment of alloys and Treatment of steel; Treatment of minerals, steel, common metals and their alloys; Metal treating and Any mechanical, thermo-mechanical or chemical transformation of properties and characteristics of metals, including the following services: Direct reduction of iron, Metal tempering, Working of metal surfaces, Soldering, Casting, anodizing, Chromium plating, Crushing, Machining, Tin plating, Galvanization, Nickel plating, Laminating, Armour plating, Cutting, Polishing, Magnetization, Plating, Stamping, Stripping finishes and Welding; Recycling of metal goods; Treatment of materials in the course of the process of manufacturing goods of metal, such as forging, pressing, de-burring, machining, laminating and forming of metals; Vacuum treatment; Nitriding (treatment of materials), Assembly of sections of metal, for others; Treatment of boiler materials. Scientific and technological services, and research and design relating thereto; Industrial analysis and research services; Software design and development; Consultancy and information relating to the aforesaid services, including in the context of customer service; Material testing and mechanical research, and consultancy and information relating thereto; Conducting technical project studies; Technical and scientific advice and information to improve the quality of goods and services, in relation to the following fields: meta, Steel and Applications of metal and steel namely Quality control; Surveying and engineering in the field of metals, steels and their applications; Engineering in the field of steel and its applications; Construction drafting; Design, creation and development of computer software, in particular for metallurgy; Design of computer software for global solutions for building.
36.
COLD ROLLED AND HEAT TREATED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF
A cold rolled and heat treated steel sheet having a composition including the following elements: 0.1%≤Carbon≤0.5%, 1%≤Maganeses≤3.4%, 0.5%≤Silicon≤2.5%, 0.01%≤Aluminum≤1.5%, 0.05%≤Chromium≤1%, 0.001%≤Niobium≤0.1%, 0%≤Sulfur≤0.003%, 0.002%≤Phosphorus≤0.02%, 0%≤Nitrogen≤0.01%, 0%≤Molybdenum≤0.5%, 0.001%≤Titanium≤0.1%, 0.01%≤Coppers≤2%, 0.01%≤Nickel≤3%, 0.0001%≤Calcium≤0.005%, 0%≤Vanadium≤0.1%, 0%≤Boron≤0.003%, 0%≤Ceriurm≤0.1%, 0%≤Magnesium≤0.010%, 0%≤Zirconium≤0.010% the remainder composition being composed of iron and the unavoidable impurities, and a microstructure of the rolled steel sheet includes by area fraction, 10% to 60% Bainite, 5% to 50% Ferrite, 5% to 25% Residual Austenite, Martensite 2% to 20%, Tempered Martensite 0% to 25%, the balance being Annealed Martensite, which content shall be from 1% to 45%.
C22C 38/26 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du niobium ou du tantale
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
37.
Process for Manufacturing a Press Hardened Laser Welded Steel Part
A process for manufacturing a press hardened laser welded steel part, includes providing at least one first steel sheet with a composition containing, by weight 0.062≤C≤0.095%, the at least one first steel sheet precoated with a metallic precoating of aluminum, or aluminum-based alloy, or aluminum alloy.
providing at least one second steel sheet with a composition containing, by weight, from to 0.38% of carbon, the at least one second steel sheet precoated with a metallic precoating of aluminum, or aluminum-based alloy, or aluminum alloy;
removing a portion of a thickness of the aluminum precoating at upper and lower sides along one side of a periphery of the at least one first steel sheet and the at least one second steel sheet;
creating a welded blank by laser welding the at least one first steel sheet and the at least one second steel sheet, such that an aluminum content in a weld metal is lower than 0.3% by weight, the laser welding being performed along the periphery wherein the portion of the thickness of the aluminum precoating has been removed;
heating the welded blank and holding the welded blank at a temperature Tm between 890 and 950° C., a holding duration Dm at the temperature being between 1 and 10 minutes, so as to obtain a heated welded blank;
transferring the heated welded blank within a forming press, the transfer duration Dt being less than 10 s;
hot forming the heated welded blank in the forming press so as to obtain a welded formed part; and
cooling the welded formed part at a first cooling rate CR1 between 40 and 360° C./s in a temperature range between 750 and 450° C., and at a second cooling rate CR2 between 15 to 150° C./s in a temperature range between 450° C. and 250° C., wherein CR2
C22C 38/26 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du niobium ou du tantale
C22C 38/28 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du bore
C22C 38/38 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
B21D 22/02 - Estampage utilisant des dispositifs ou outils rigides
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C22C 38/46 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du vanadium
C22C 38/44 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/50 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/54 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du bore
C22C 38/48 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 21/02 - Alliages à base d'aluminium avec le silicium comme second constituant majeur
B21B 1/22 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilés; Séquence des opérations dans les trains de laminoirs; Installation d'une usine de laminage, p.ex. groupement de cages; Succession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies
C21D 6/00 - Traitement thermique des alliages ferreux
C22C 38/22 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
A method for producing a press hardened part of coated steel comprising the following steps: A) Supplying a steel sheet having a thickness from 0.5 to 2.5 mm, B) Coating said steel sheet by hot dipping into a liquid metallic bath containing by weight, 8 to 12 % of Silicon, up to 3 % Iron, and unavoidable impurities up to 0.1 %, the balance being Aluminum, wherein said coating thickness ranges from 10 to 20 µm per side of said steel sheet C) Temper rolling the coated steel sheet at a elongation rate from 0.1 to 1.2 %, the elongation being defined by the speed difference between the material in and the material out of the temper rolling stand, D) Cutting said coated, temper rolled steel sheet to obtain a blank, E) Heating said blank at a temperature from 800 to 970°C, to obtain a fully austenitic microstructure in the steel, F) Transferring the blank into a press tool, G) Press hardening of said blank to obtain a press-hardened part.
The invention deals with a method for manufacturing molten pig iron into an electrical smelting furnace 13, said method comprising the following successive steps: - providing a directly reduced iron product 12, - providing a carbon containing material 30, - feeding at least a part of the smelting furnace with the DRI product 12 in alternance with the carbon containing material 30, - melting the DRI Product 12 and the carbon containing material 30 to produce molten pig iron 14. It also deals with the manufacturing of steel from said pig iron.
The invention deals with a method for manufacturing molten pig iron into an electrical smelting furnace 13, said method comprising the following successive steps: - providing a directly reduced iron product 12, - providing a carbon and iron containing material 30, - feeding at least a part of the smelting furnace with the DRI product 12 in alternance with the carbon and iron containing material 30, - melting the DRI Product 12 and the carbon and iron containing material 30 to produce molten pig iron 14. It also deals with the manufacturing of steel from said pig iron.
The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product to form a pig iron layer 14 topped by a slag layer 23 and − injecting a desulphurizing reagent directly in said pig iron layer 14. It also deals with the manufacturing of steel from said pig iron and to the associated electrical smelting furnace 13.
F27B 3/18 - Aménagement des dispositifs de chargement
F27D 3/18 - Chargement de matériaux particulaires en utilisant un fluide transporteur
F27B 3/10 - Fours à sole, p.ex. fours à réverbération; Fours à arc électrique - Parties constitutives, accessoires ou équipement, p.ex. collecteurs de poussière, particuliers aux fours à sole
F27B 3/19 - Aménagement des dispositifs de déchargement
F27D 3/14 - Chargement ou déchargement d'un matériau liquide ou fondu
42.
A METHOD FOR MANUFACTURING PIG IRON IN AN ELECTRICAL SMELTING FURNACE AND ASSOCIATED ELECTRICAL SMELTING FURNACE
The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product to form a pig iron layer 14 topped by a slag layer 23 and − injecting a desulphurizing reagent directly in said pig iron layer 14. It also deals with the manufacturing of steel from said pig iron and with the associated electrical smelting furnace.
F27B 3/18 - Aménagement des dispositifs de chargement
F27D 3/18 - Chargement de matériaux particulaires en utilisant un fluide transporteur
F27B 3/10 - Fours à sole, p.ex. fours à réverbération; Fours à arc électrique - Parties constitutives, accessoires ou équipement, p.ex. collecteurs de poussière, particuliers aux fours à sole
F27B 3/19 - Aménagement des dispositifs de déchargement
F27D 3/14 - Chargement ou déchargement d'un matériau liquide ou fondu
43.
A METHOD FOR MANUFACTURING PIG IRON IN AN ELECTRICAL SMELTING FURNACE AND ASSOCIATED ELECTRICAL SMELTING FURNACE
The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product to form a pig iron layer 14 topped by a slag layer 23 and − injecting a carbon containing material directly in said pig iron layer 14. It also deals with the manufacturing of steel from said pig iron and to the associated electrical smelting furnace 13.
The invention deals with a method for manufacturing pig iron in a smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product to form a pig iron layer 14 topped by a slag layer 23 and − transferring said pig iron 14 to said desulphurization station 15 and − injecting a silicon containing material in said pig iron 14 in desulphurization station 15. It also deals with the manufacturing of steel from said pig iron.
The invention deals with a method of manufacturing molten pig iron into an electrical smelting unit. The method comprises the following successive steps: - providing a directly reduced iron product 12, - feeding the DRI product 12 into the smelting unit 13, - feeding together with the DRI product 13, ferrous scrap having a size lower than 80mm, - melting the DRI product 13 and the ferrous scrap to produce molten pig iron. The invention also deals with a method to produce liquid steel from manufactured pig iron.
The invention deals with a method for manufacturing pig iron in a smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product to form a pig iron layer 14 topped by a slag layer 23 and − injecting a carbon containing material directly in said pig iron layer 14. It also deals with the manufacturing of steel from said pig iron and to an associated electrical smelting furnace 13.
The invention deals with a method for manufacturing pig iron in a smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product to form a pig iron layer 14 topped by a slag layer 23 and − injecting a carbon containing material directly in said pig iron layer 14. It also deals with the manufacturing of steel from said pig iron and to the associated electrical smelting furnace.
An automobile, wherein at least one outer skin part or one semi-visible part is made of coated press hardened steel, the coating of said steel before heating and press hardening containing by weight, 8 to 12 % of Silicon, up to 3 % Iron, and unavoidable impurities up to 0.1 %, the balance being Aluminum, and wherein said coating has a thickness from 10 to 20 μm per side.
An automobile, wherein at least one outer skin part or at least one semi- visible part is made of coated press hardened steel, the coating of said steel before heating and press hardening containing by weight, 8 to 12 % of Silicon, up to 3 % Iron, and unavoidable impurities up to 0.1 %, the balance being Aluminum, and wherein said coating has a thickness from 20 to 40 μm per side.
A method of casting a steel semi-product wherein a liquid steel is poured from a ladle to a tundish through a shroud including the steps of determining the light intensity emitted from the surface of the liquid steel in the tundish, detecting, based on said determined intensity, the presence of an open-eye at the surface of the liquid steel and emitting an alert towards an operator when an open-eye is detected.
A method for producing a press hardened part of coated steel comprising the following steps: A) Supplying a steel sheet having a thickness from 0.5 to 2.5 mm, B) Coating said steel sheet by hot dipping into a liquid metallic bath containing by weight, 8 to 12 % of Silicon, up to 3 % Iron, and unavoidable impurities up to 0.1 %, the balance being Aluminum, wherein said coating thickness from 20 to 40 µm per side of said steel sheet, C) Temper rolling the coated steel sheet at an elongation rate from 0.1 to 1.2 %, the elongation rate being defined by the speed difference between the material in and the material out of the temper rolling stand, D) Cutting said coated, temper rolled steel sheet to obtain a blank, E) Heating said blank at a temperature from 800 to 970°C, to obtain a fully austenitic microstructure in the steel, F) Transferring the blank into a press tool, G) Press hardening of the part obtained at step by cooling to obtain a press-hardened part.
The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: - loading DRI product in said vessel 20 - melting said DRI product to form a pig iron layer 14 topped by a slag layer 23 and - tapping said pig iron 14 into a ladle and - adding a silicon containing material directly in said pig iron 14 in the runner of at least one of said smelting furnace tap holes 25. It also deals with the manufacturing of steel from said pig iron and to the associated electrical smelting furnace.
C21C 5/46 - Caractéristiques de construction des convertisseurs - Parties constitutives ou accessoires
C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p.ex. des aciers, non couverts par les groupes
F27B 3/18 - Aménagement des dispositifs de chargement
F27D 3/18 - Chargement de matériaux particulaires en utilisant un fluide transporteur
F27B 3/10 - Fours à sole, p.ex. fours à réverbération; Fours à arc électrique - Parties constitutives, accessoires ou équipement, p.ex. collecteurs de poussière, particuliers aux fours à sole
F27B 3/19 - Aménagement des dispositifs de déchargement
F27D 3/14 - Chargement ou déchargement d'un matériau liquide ou fondu
53.
A METHOD FOR MANUFACTURING PIG IRON IN AN ELECTRICAL SMELTING FURNACE AND ASSOCIATED FURNACE
The invention deals with a method for manufacturing pig iron in a smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product to form a pig iron layer 14 topped by a slag layer 23 and − injecting a desulphurizing reagent directly in said pig iron layer 14. It also deals with the manufacturing of steel from said pig iron and to the associated electrical smelting furnace.
The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product to form a pig iron layer 14 topped by a slag layer 23 and − tapping said pig iron 14 into a ladle and − adding a carbon containing material directly in said pig iron 14 in the runner 26 of at least one of said smelting furnace tap holes 25. It also deals with the manufacturing of steel from said pig iron and with the associated electrical smelting furnace 13.
F27B 3/18 - Aménagement des dispositifs de chargement
F27D 3/18 - Chargement de matériaux particulaires en utilisant un fluide transporteur
F27B 3/10 - Fours à sole, p.ex. fours à réverbération; Fours à arc électrique - Parties constitutives, accessoires ou équipement, p.ex. collecteurs de poussière, particuliers aux fours à sole
F27B 3/19 - Aménagement des dispositifs de déchargement
F27D 3/14 - Chargement ou déchargement d'un matériau liquide ou fondu
F27D 3/15 - Equipement de piquée; Equipement pour l'élimination du laitier
55.
METHOD FOR MANUFACTURING PIG IRON IN A PRODUCTION LINE COMPRISING AN ELECTRICAL SMELTING FURNACE
The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product to form a pig iron layer 14 topped by a slag layer 23 and − transferring said pig iron 14 to said desulphurization station 15 and − injecting a carbon containing material in said pig iron 14 in desulphurization station 15. It also deals with the manufacturing of steel from said pig iron.
The invention deals with a method of manufacturing molten pig iron into an electrical smelting unit 13. The method comprises the following successive steps: - providing a directly reduced iron product 12, - feeding the DRI product 12 into the smelting unit 13, - feeding together with the DRI product 13 at least one steel or ironmaking by-product-based material having an iron content upper than 20% in weight, at least a part of said iron being under an oxidized form, - melting the DRI product 13 and the at least one steel or ironmaking by-product-based material to produce molten pig iron. The invention also deals with a steel manufacturing method using said pig iron.
The invention deals with a method of manufacturing molten pig iron into an electrical smelting unit 13. The method comprises the following successive steps: - providing a directly reduced iron product 12, - feeding the DRI product 12 into the smelting unit 13, - feeding together with the DRI product 13 at least one steel or ironmaking by-product-based material comprising at least 10% in weight of slag forming agents, - melting the DRI product 13 and the at least one steel or ironmaking by-product-based material to produce molten pig iron. The invention also deals with a steel manufacturing method using said pig iron.
The invention deals with a method of manufacturing molten pig iron into an electrical smelting unit 13. The method comprises the following successive steps: - providing a directly reduced iron product 12, - feeding the DRI product 12 into the smelting unit 13, - feeding together with the DRI product 13 at least one steel or ironmaking by-product-based material having an iron content upper than 20% in weight, at least a part of said iron being under an oxidized form, - melting the DRI product 13 and the at least one steel or ironmaking by- product-based material to produce molten pig iron. The invention also deals with a steel manufacturing method using said pig iron.
A method for the manufacture of a steel sheet, in a device including a pre-heating section, a heating section having a maximal heating rate and a soaking section including a calibrating step, a recrystallization annealing and a soaking and a coating step. The calibration step permits to define a lower dew point permitting to achieve a predefined quality target.
A process for welding at least two steel sheets comprising the following successive steps: providing at least one steel sheet having a composition comprising the following elements, expressed by weight percent: 0.01% ≤ C ≤ 0.2%, 2.5% ≤ Ti ≤ 10 %, (0.45 xTi) – 1.35% ≤ B ≤ (0.45 xTi) + 0.70%, S ≤ 0.03%, P ≤ 0.04%, N ≤ 0.05%, O ≤ 0.05% and comprising precipitates of TiB2, the balance being Fe and unavoidable impurities resulting from the elaboration, providing a second steel sheet, welding the first steel sheet and the second steel sheet by using a filler wire, said filler wire having composition, comprising Ti: 0.8 – 2 wt% to obtain a molten zone having an average content of free titanium Ti* above or equal to 0.60 wt%.
B23K 35/02 - Baguettes, électrodes, matériaux ou environnements utilisés pour le brasage, le soudage ou le découpage caractérisés par des propriétés mécaniques, p.ex. par la forme
C22C 38/14 - Alliages ferreux, p.ex. aciers alliés contenant du titane ou du zirconium
B23K 35/30 - Emploi de matériaux spécifiés pour le soudage ou le brasage dont le principal constituant fond à moins de 1550 C
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
Side structure (1) for a motor vehicle (3) including an inner and outer frame (11, 13) each forming a closed ring and having two openings corresponding to the front and rear doors (8, 10), wherein the inner and outer frames (11, 13) are each formed by hot stamping respectively an inner and an outer frame blank (111, 113), each being a single tailor welded blank made of steel and wherein the inner and outer frames (11,13) are assembled to form a hollow volume (7) between them.
A method for manufacturing a thermally treated steel sheet is described. The method includes:
A. preparation step containing:
1) a selection substep, wherein:
a. mtarget and a chemical composition are compared to a list of predefined products, whose microstructure contains predefined phases and predefined proportion of phases, and a product having a microstructure mstandard closest to mtarget and TPstandard is selected, including at least a heating, a soaking and a cooling steps, to obtain mstandard,
b. a heating path, a soaking path including a soaking temperature Tsoaking, a power cooling of the cooling system and a cooling temperature Tcooling are selected based on TPstandard and
2) a calculation substep, wherein through variation of the cooling power, new cooling paths CPx are calculated based on the product selected in step A.1)a and TPstandard, the initial microstructure mi of the steel sheet to reach mtarget, the heating path, the soaking path comprising Tsoaking and Tcooling, the cooling step of TPstandard is recalculated using said CPx in order to obtain new thermal paths TPx, each TPx corresponding to a microstructure mx,
3) a selection substep wherein one TPtarget to reach mtarget is selected, TPtarget being chosen among the calculated thermal paths TPx and being selected such that mx is the closest to mtarget, and
B. a thermal treatment step wherein TPtarget is performed on the steel sheet.
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C21D 1/667 - Dispositifs pour trempe pour la trempe par pulvérisation
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
A method for the manufacture of a self-standing graphene oxide or reduced graphene oxide film having a thickness between 0.4 and 4.0 μm, including the successive steps of A) preparing an aqueous dispersion including 0.1 to 30 g·L−1 of graphene oxide or reduced graphene oxide, B) depositing the aqueous dispersion on a flat substrate coated with a polymeric film dissolvable in organic solvents and unsolvable in water, so as to form a wet film having a thickness comprised between 1 μm and 3.5 mm, C) drying the wet film, D) separating the polymeric film from the flat substrate, E) placing the polymeric film in a support frame, F) showering the polymeric film with an organic solvent to dissolve the polymeric film, G) separating the graphene oxide or reduced graphene oxide film from the frame to obtain the self-standing graphene oxide or reduced graphene oxide film.
C22C 38/44 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/46 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du vanadium
C22C 38/48 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/42 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du nickel et du cuivre
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
A steel part for the transmission system of an automobile comprising of the following elements, 0.2%≦C≦0.35%; 1.0%≦Mn≦1.6%; 0.2%≦Si≦0.7%; 0.001%≦Al≦0.1%; 0.01%≦Mo≦0.5%; 0.020%≦Nb≦0.06%; 1%≦Cr≦1.5%; 0≦P≦ 0.09%; 0≦S≦0.09%; 0.009%≦N≦0.09%; 0%≦Ni≦1%; 0%≦V≦0.2%; 0%≦Ti≦0.1%; 0%≦Cu≦1%; 0%≦B ≦0.008%; 0%≦Sn≦0.1%; 0%≦Ce≦0.1%; 0%≦Mg≦0.10%; 0%≦Zr≦0.10%; the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the core of said steel part comprising, by area percentage, at least 90% of Bainite, with a cumulative optional presence of any one or more from Residual Austenite, Pearlite, ferrite or martensite from 0% and 10% and precipitates of Aluminum and Niobium in form of AlN and Nb (C,N), such steel part having a martensiteenriched layer till the depth of 1mm or less on all surfaces of said steel part, such martensiteenriched layer comprising from 85% to 95% of martensite, the remainder being any one or more from bainite, residual austenite, ferrite or cementite.
C21D 9/28 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour arbres lisses
C21D 9/32 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour roues d'engrenage, roues hélicoïdales, ou équivalent
C21D 7/13 - Modification des propriétés physiques du fer ou de l'acier par déformation par travail à chaud
66.
STEEL FOR RAILS AND A METHOD OF MANUFACTURING OF A RAIL THEREOF
A steel for rail having the following elements, 0.25%≤C≤0.8%; 1.0%≤Mn≤2.0%; 1.40%≤Si≤2%; 0.01%≤Al≤1%; 0.8%≤Cr≤2%; 0≤P≤0.09%; 0≤S≤0.09%; 0%≤N≤0.09%; 0%≤Ni≤1%; 0%≤Mo≤0.5%; 0%≤V≤0.2%; 0%≤Nb ≤0.1%; 0%≤Ti≤0.1%; 0%≤Cu≤0.5%; 0%≤B≤0.008%; 0%≤Sn≤0.1%; 0% ≤Ce≤0.1%; 0%≤Mg≤0.10%; 0%≤Zr≤0.10%; the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure having, by area percentage, 2% to 10% of Proeutectoid Ferrite, the balance being made of Pearlite wherein the pearlite having interlamellar spacing from 100 nm to 250 nm .
A scrap inventory management method allowing to have a better control of scrap stocks. The method includes a calculation step of at least one combination of an action to be performed and an associated quantity for a given scrap based on characteristics of the liquid steel to be produced and on scrap properties.
Rear underfloor structure (2) for a motor vehicle (1) including a first and a second side member (4) and at least one cross member (5) linking the first and second side members (4), wherein the rear underfloor structure (2) is made by stamping a single tailor welded blank (26) comprising at least two sub-blanks.
A trimming device for metallic sheets including: an upper knife, comprising a central circular face having a diameter D1 and a thickness T1, mounted on an upper shaft, a lower knife, comprising a central circular face having a diameter D2 and a thickness T2, mounted on a lower shaft, wherein said upper knife and said lower knife are vertically shifted with an overlap (DOVERLAP) so as to define a shear of said metallic sheet and wherein at least one of said upper or lower shaft is able to be moved vertically, a first distance sensor, able to measure a vertical distance to the upper end of said upper knife, a second distance sensor, able to measure a vertical distance to the lower end of said lower knife, a computer able to compute the overlap.
B23D 35/00 - Outils des machines à cisailler ou des dispositifs de cisaillage; Porte-outils ou mandrins pour ces outils
B23D 19/04 - Machines à cisailler ou dispositifs de cisaillage taillant au moyen de disques rotatifs ayant des disques de cisaillage rotatifs disposés par paires travaillant conjointement
70.
Process and equipment to Laser cut very high strength metallic material
Laser cutting process to produce n trimmed sub-blanks, n being an integer strictly greater than 1, from a mother blank made of metallic material, having the following steps: Op1/ positioning the mother blank on a cutting table having n laths arranged to be moveable relative to one another in a transverse direction, Op2/ clamping at least part of the mother blank to the cutting table, Op3/ cutting, using a laser source, n untrimmed sub-blanks from the mother blank in a longitudinal cutting direction, Op4/ separating the n laths of the cutting table from one another in a transverse direction, Op5/ releasing the clamping, Op6/ clamping the n untrimmed sub-blanks to the n laths, Op7/ laser trimming the n untrimmed sub-blanks in order to form n trimmed sub-blanks, Op8/ releasing the clamping, Op9/ discharging the n trimmed sub-blanks from the cutting table.
B23K 26/38 - Enlèvement de matière par perçage ou découpage
B23K 37/04 - Dispositifs ou procédés auxiliaires non spécialement adaptés à un procédé couvert par un seul des autres groupes principaux de la présente sous-classe pour maintenir ou mettre en position les pièces
71.
HIGH STRENGTH AND HIGH FORMABILITY STEEL SHEET AND MANUFACTURING METHOD
A cold-rolled and heat-treated steel sheet, has a composition comprising, by weight percent: n0.10%≤C≤0.25%, 3.5%≤Mn≤6.0%, 0.5%≤Si≤2.0%, 0.3%≤Al≤1.2%, with Si+Al≥0.8%, 0.10%≤Mo≤0.50%, S≤0.010%, P≤0.020%, N≤0.008%. The cold-rolled steel sheet has a microstructure consisting of, in surface fraction: between 10% and 45% of ferrite, having an average grain size of at most 1.3 μm, the product of the surface fraction of ferrite by the average grain size of the ferrite being of at most 35 μm %, between 8% and 30% of retained austenite, the retained austenite having an Mn content higher than 1.1*Mn %, Mn % designating the Mn content of the steel, at most 8% of fresh martensite, at most 2.5% of cementite and partitioned martensite.
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
B23K 11/16 - Soudage par résistance tenant compte des propriétés du métal à souder
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
It is a first purpose of the current invention to provide a computerized method to determine the best nesting of blanks in a strip in order to optimize the material usage and to determine the associated material usage. Solving the problem of material usage optimization involves at least three different variables (two rotation angles of the blanks and one transversal offset) and thus potentially involves optimizing the material usage function over a very large set of combinations. This leads to high computation times, which can be a serious hindrance to the implementation of the material usage optimization method. A second purpose of the current invention is therefore to provide a computerized method to accelerate the computerized determination of the best blank nesting for material usage optimization and the associated material usage.
G05B 19/4097 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par l'utilisation de données de conception pour commander des machines à commande numérique [CN], p.ex. conception et fabrication assistées par ordinateur CFAO
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
73.
METHOD TO OPTIMIZE THE NESTING OF TWO BLANKS WITHIN A LONGITUDINALLY EXTENDING FLAT STRIP
It is a first purpose of the current invention to provide a computerized method to determine the best nesting of blanks in a strip in order to optimize the material usage and to determine the associated material usage. Solving the problem of material usage optimization involves at least three different variables (two rotation angles of the blanks and one transversal offset) and thus potentially involves optimizing the material usage function over a very large set of combinations. This leads to high computation times, which can be a serious hindrance to the implementation of the material usage optimization method. A second purpose of the current invention is therefore to provide a computerized method to accelerate the computerized determination of the best blank nesting for material usage optimization and the associated material usage.
G05B 19/4097 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par l'utilisation de données de conception pour commander des machines à commande numérique [CN], p.ex. conception et fabrication assistées par ordinateur CFAO
B21D 28/06 - Fabrication de plusieurs pièces à partir d'un même flan; Travail sans production de déchets
A binder for extruded, pelletized, briquetted, or agglomerated material, said binder comprising from 80% to 90% in weight of a pyrolysis oil resulting from the pyrolysis of biomass and from 10% to 20% in weight of thermoplastics.
C10L 5/44 - Combustibles solides à base essentielle de matières d'origine non minérale de matières végétales
C10B 53/02 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale de matières contenant de la cellulose
C22B 1/244 - Agglutination; Briquetage avec des liants organiques
75.
DEVICE AND METHOD FOR COOLING ROLLS USED FOR ROLLING IN A HIGHLY TURBULENT ENVIRONMENT
The invention relates to a rolling stand for metallic products comprising - at least one pair of work rolls, - at least a pair of back-up rolls, - at least one water pillow cooling device able to project a plurality of cooling jets under pressure on at least one of said work roll, - a removable plate - placed between said cooling device and said work roll, - being concave and curved with a curvature such that a gap between said removable plate and said upper work roll is constant or increases when moving in direction of the back-up roll and such that said gap is from 5 to 200 mm, - and being holed such that said cooling jets can pass through said removable plate.
B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer
76.
DEVICE AND METHOD FOR COOLING ROLLS USED FOR ROLLING IN A HIGHLY TURBULENT ENVIRONMENT
The invention relates to a rolling stand for metallic products comprising - at least one pair of work rolls, - at least a pair of back-up rolls, - at least one water pillow cooling device able to project a plurality of cooling jets under pressure on at least one of said work roll, - a removable plate - placed between said cooling device and said work roll, - being concave and curved with a curvature such that a gap between said removable plate and said upper work roll is constant or increases when moving in direction of the back-up roll and such that said gap is from 5 to 200 mm, - and being holed such that said cooling jets can pass through said removable plate.
B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer
A binder for extruded, pelletized, briquetted, or agglomerated material, said binder comprising from 80% to 90% in weight of a pyrolysis oil resulting from the pyrolysis of biomass and from 10% to 20% in weight of thermoplastics.
C10L 5/44 - Combustibles solides à base essentielle de matières d'origine non minérale de matières végétales
C10B 53/02 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale de matières contenant de la cellulose
C22B 1/244 - Agglutination; Briquetage avec des liants organiques
78.
METHOD TO AUTOMATICALLY POSITION BLANKS IN A STRIP AND TO CALCULATE THE ASSOCIATED SCRAP RATIO
Method for the computerized positioning of two blanks to be cut out in a longitudinally extending strip comprising the steps of determining the inner dimensions of each blank in the longitudinal direction, determining the distances in the longitudinal direction between the left side of blank A and the right side of blank B and conversely when said blanks are superimposed, and deducting the pitches between two neighbouring blanks A and B and two neighbouring blanks B and A. Method for the computerized scrap ratio calculation using said blank positioning method and method for the computerized calculation of the material cost of the blanking operation using said scrap ratio calculation.
G05B 19/4097 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par l'utilisation de données de conception pour commander des machines à commande numérique [CN], p.ex. conception et fabrication assistées par ordinateur CFAO
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
79.
A method for manufacturing a steel sheet with a ZnAlMg coating, corresponding coated steel sheet, part and vehicle
A method for manufacturing a steel sheet provided with a coating included from 0.80 to 1.40 wt. % of Al, from 0.80 to 1.40 wt. % of Mg, unavoidable impurities and optionally one or more additional elements selected from Si, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, Zr or Bi, the weight content of each additional element in the coating being less than 0.3%, the remainder being Zn, the outer surface of the coated steel sheet having a waviness Wa0.8 before skin-pass of less than or equal to 0.50 μm; the coated steel sheet obtained by this method; the part obtained by deformation of a steel sheet and a land motor vehicle comprising a body, the body including the part.
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
A method for producing a welded blank (1) includes providing two precoated sheets (2), butt welding the precoated sheets (2) using a filler wire. The precoating (5) entirely covers at least one face (4) of each sheet (2) at the time of butt welding. The filler wire (20) has a carbon content between 0.01 wt. % and 0.45 wt. %. The composition of the filler wire (20) and the proportion of filler wire (20) added to the weld pool is chosen such that the weld joint (22) has (a) a quenching factor FTWJ: FTWJ−0.9FTBM≥0, where FTBM is a quenching factor of the least hardenable substrate (3), and FTWJ and FTBM are determined: FT=128+1553×C+55×Mn+267×Si+49×Ni+5×Cr−79×Al−2×Ni2−1532×C2−5×Mn2−127×Si2−40×C×Ni−4×Ni×Mn, and (b) a carbon content CWJ<0.15 wt. % or, if CWJ≥0.15 wt. %, a softening factor FAWJ such that FAWJ>5000, where FA=10291+4384.1×Mo+3676.9Si−522.64×Al−2221.2×Cr−118.11×Ni−1565.1×C−246.67×Mn.
B62D 21/15 - Châssis, c. à d. armature sur laquelle une carrosserie peut être montée comportant des moyens amortisseurs de chocs, p.ex. châssis conçus pour changer de forme ou de dimensions d'une façon définitive ou temporaire à la suite d'une collision avec un autre corps
B23K 33/00 - Extrémités de pièces spécialement profilées pour effectuer des assemblages brasés ou soudés; Remplissage des joints continus ainsi formés
B23K 35/24 - Emploi de matériaux spécifiés pour le soudage ou le brasage
B23K 35/38 - Emploi d'environnements spécifiés, p.ex. d'atmosphères particulières entourant la zone de travail
B62D 27/02 - Assemblages entre sous-ensembles de la carrosserie rigides
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 9/50 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour joints de soudure
C22C 19/05 - Alliages à base de nickel ou de cobalt, seuls ou ensemble à base de nickel avec du chrome
C22C 30/02 - Alliages contenant moins de 50% en poids de chaque constituant contenant du cuivre
A High Manganese hot rolled steel having a composition comprising of the following elements 0.8 % ≤ Carbon ≤ 1.3 %, 9.5 % ≤ Manganese ≤ 22%,0.01% ≤ Silicon ≤ 3%, 0.01% ≤ Aluminum ≤ 3%, 0.03 % ≤ Phosphorus ≤ 0.1%, 0.03 % ≤ Sulfur ≤ 0.1 %, 0 % ≤ Nitrogen ≤ 0.01%, 0% ≤ Niobium ≤ 0.03%, 0% ≤ Titanium ≤ 0.2%, 0% ≤ Chromium ≤ 1.5%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Calcium ≤ 0.005%, 0.01% ≤ Copper ≤ 2%, 0.01% ≤ Nickel ≤ 3%, 0 % ≤ Boron ≤ 0.01%, 0 % ≤ Magnesium ≤ 0.005%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel consisting in, in area fraction, 95% or more of Austenite, 0% to 5% Carbides wherein the grain size of the grains of Austenite is 15 microns or more.
C22C 38/14 - Alliages ferreux, p.ex. aciers alliés contenant du titane ou du zirconium
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 1/18 - Durcissement; Trempe avec ou sans revenu ultérieur
82.
Welding flux composition and corresponding method for welding metals
B23K 35/368 - Emploi de compositions non métalliques spécifiées pour fil fourré, soit seules, soit liées à l'emploi de matériaux spécifiés pour le brasage ou le soudage
B23K 35/362 - Emploi de compositions spécifiées de flux
B23K 35/02 - Baguettes, électrodes, matériaux ou environnements utilisés pour le brasage, le soudage ou le découpage caractérisés par des propriétés mécaniques, p.ex. par la forme
A method for estimating the oxide thickness and the temperature of a heated steel strip, undergoing a heat treatment performed at a temperature from 100° C. to 1100° C., including the steps of 1. measuring at least two radiation intensities at different wavelengths, in a range from 1 to 5 μm, emitted by the heated steel strip, 2. estimating the temperature of the heated steel strip, TESTIMATED, based on the at least two measured radiation intensities and a reference radiation intensity for at least a reference wavelength, emitted by a reference steel strip having a determined oxide layer thickness, estimating the emissivity coefficient of the heated steel strip, εESTIMATED, using at least one of the measured radiation intensities and the estimated temperature, TESTIMATED, 4. estimating the oxide thickness, OxESTIMATED, of the heated steel strip using the estimated emissivity, εESTIMATED.
G01J 5/00 - Pyrométrie des radiations, p.ex. thermométrie infrarouge ou optique
G01B 21/08 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
G01J 5/02 - Pyrométrie des radiations, p.ex. thermométrie infrarouge ou optique - Détails structurels
G01J 5/60 - Pyrométrie des radiations, p.ex. thermométrie infrarouge ou optique en utilisant la détermination de la température de couleur
G01J 5/80 - Pyrométrie des radiations, p.ex. thermométrie infrarouge ou optique Étalonnage
84.
A MARTENSITIC STEEL SHEET AND A METHOD OF MANUNFACTURING THEREOF
A martensitic steel sheet comprising of the following elements 0.08 % ≦ C ≦ 0.14 %; 1.95 % ≦ Mn ≦ 2.6 %; 0.1% ≦ Si ≦ 0.8 %;.01% ≦ Al ≦ 0.1 %; 0.001% ≦ Ti ≦ 0.1%; 0.0001% ≦ B ≦ 0.05%; 0% ≦ S ≦ 0.09%; 0% ≦ P ≦ 0.09%; 0% ≦ N ≦ 0.09%; 0.1% ≦ Cr ≦ 1 %; 0% ≦ Ni ≦ 1%; 0% ≦ Cu ≦ 1%; 0% ≦ Mo ≦ 0.4%; 0% ≦ Nb ≦ 0.1%; 0% ≦ V≦ 0.1%; 0% ≦Sn≦ 0.1%; 0% ≦ Pb≦ 0.1%; 0% ≦ Sb≦ 0.1%; 0.001% ≦ Ca≦ 0.01%; the remainder composition being composed of iron and unavoidable impurities, the microstructure of said steel comprising, by area percentage, at least 92% of martensite, a cumulated amount of ferrite and bainite from 1 % to 8%, and an optional amount of residual austenite from 0% to 2%.
C22C 38/12 - Alliages ferreux, p.ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
C22C 38/38 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
C22C 38/28 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/26 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du niobium ou du tantale
C22C 38/32 - Alliages ferreux, p.ex. aciers alliés contenant du chrome et du bore
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 1/18 - Durcissement; Trempe avec ou sans revenu ultérieur
A device to inject a reducing gas into a shaft furnace including an external casing whose front face is provided with an outlet for gas injection into the shaft furnace, an internal casing located inside the external casing and made of a steel able to resist to a temperature up to 1200° C., this internal casing having an opening matching the gas injection outlet of the front face of the external casing and a refractory layer located between the external casing and the internal casing.
A blast furnace for ironmaking production wherein iron ore is at least partly reduced by a reducing gas which is injected in the stack of the blast furnace. The blast furnace includes an external and an internal wall, having a thickness Tint, in contact with matters charged into the blast furnace. The thickness Tint of the internal wall is substantially constant above and below the injection area of a reducing gas.
A lance (1) for blowing oxygen onto a bath of molten steel including a tip (15) provided with first oxygen ejector (16) and a distributor (17) provided with second ejector (18).
A blast furnace for ironmaking production wherein iron ore is at least partly reduced by a reducing gas which is injected in the stack of the blast furnace. The blast furnace includes an external wall, an internal wall in contact with matters charged into the blast furnace, the internal wall including several rows of staves having a parallelepipedal shape. At least one row of staves comprises staves with a hole drilled in a least one of the corners of the parallelepipedal stave wherein an injection device may be partly inserted in.
A hot rolled steel sheet having a composition comprising of the following elements 0.060%≤Carbon≤0.1%, 1.4%≤Manganese≤1.8%, 0.3%≤Silicon≤0.8%, 0.01%≤ Aluminum≤0.1%, 0.01%≤Niobium≤0.09%, 0.01%≤Titanium≤0.09%, 0.002%≤ Phosphorus ≤ 0.02 %, 0 % ≤ Sulfur ≤ 0.005 %, 0 % ≤ Nitrogen ≤ 0.01%, with 0.045% ≤ Ti+Nb ≤ 0.060%, 0% ≤ Chromium ≤ 0.5%, 0% ≤ Molybdenum ≤ 0.4%, 0% ≤ Vanadium ≤ 0.4%, 0% ≤ Calcium ≤ 0.005%, 0% ≤ Copper ≤ 1%,0% ≤ Nickel ≤ 1%, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Magnesium ≤ 0.05%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 10% to 20% Bainite, 80% to 92% Ferrite wherein the aspect ratio of the grains of Bainite and Ferrite is less than 1.75 and a cumulated amount of Residual Austenite and Martensite is from 0% to 10 %.
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 1/18 - Durcissement; Trempe avec ou sans revenu ultérieur
A cooling method of a travelling coated steel strip, exiting a hot-dip coating bath, including the steps of A) sucking a gas into a cooling device, B) filtering the sucked gas by a filtering system capturing at least 50% of the particles having a size of at least 2.5 µm, C) blowing, at a velocity comprised from 1 to 80 m.s-1, the sucked and filtered gas onto the coated steel strip.
The invention relates to a method for heating at least one semi-finished metal products to be further laminated, by means of a heat exchanging device comprising a chamber containing solid particles, supporting means able to support semi-finished metal product and a gas injector, comprising the successive steps of: i. injecting a gas into said chamber so as to form a fluidized bed, ii. inserting at least one hot semi-finished metal product such that said at least one hot semi- finished metal product is able to transfer heat to said fluidized bed, iii. inserting said at least one semi-finished metal product to be further laminated such that said fluidized bed is able to transfer heat to said at least one semi-finished metal product to be further laminated, iv. taking out said at least one semi-finished metal product to be further laminated of said fluidized bed when the temperature of said at least one semi-finished metal product to be further laminated is less than 100°C below the temperature of said fluidized bed.
A structural components node (9) a crash box connector (14) and a crash extender connector (13) each having a top plate extending in a substantially horizontal plane and allowing to secure directly together the crash extender (7) and the crash box (8). Advantageously, the structural components node (9) can further optionally include connections with a hanger (10) and a front transverse member (11). It is possible to reduce the amount of welding operations needed to assemble the structural components node (9) and to provide a robust structural components node (9) ensuring a high structural strength to the assembly and an efficient cooperation between the lower and middle load paths and between the left and right side of the vehicle in case of a front impact. A process of assembling such a structural components node (9) is also provided.
B62D 21/15 - Châssis, c. à d. armature sur laquelle une carrosserie peut être montée comportant des moyens amortisseurs de chocs, p.ex. châssis conçus pour changer de forme ou de dimensions d'une façon définitive ou temporaire à la suite d'une collision avec un autre corps
B62D 27/02 - Assemblages entre sous-ensembles de la carrosserie rigides
B62D 21/02 - Châssis, c. à d. armature sur laquelle une carrosserie peut être montée comprenant des éléments d'armature disposés longitudinalement ou transversalement
A blast furnace for ironmaking production wherein iron ore is at least partly reduced by a reducing gas which is injected in the stack of the blast furnace in an injection zone, the blast furnace comprising an external wall and an internal wall in contact with matters charged into the blast furnace, wherein in the injection zone the internal wall comprises local inwards enlargements and the reducing gas injections are performed below said inwards enlargements.
The invention relates to a method for heating at least one semi-finished metal products to be further laminated, by means of a heat exchanging device comprising a chamber containing solid particles, supporting means able to support semi-finished metal product and a gas injector, comprising the steps of: i. injecting a gas into said chamber so as to form a fluidized bed, ii. inserting at least one hot semi-finished metal product such that said at least one hot semi-finished metal product is able to transfer heat to said fluidized bed, iii. inserting said at least one semi-finished metal product to be further laminated such that said fluidized bed is able to transfer heat to said at least one semi-finished metal product to be further laminated, iv. taking out said at least one semi-finished metal product to be further laminated of said fluidized bed when the temperature of said at least one semi-finished metal product to be further laminated is less than 100°C below the temperature of said fluidized bed.
A cold rolled and coated steel sheet, the steel including 0.30%≤carbon 0.45%, 1≤manganese≤2.5%, 0.9%≤silicon≤2.2%, 0%≤aluminum≤0.09%, 0.001≤niobium≤0.09%, 0%≤phosphorus≤0.02%, 0%≤sulfur≤0.03%, 0%≤nitrogen≤0.09%, and optionally one or more of the following elements 0%≤molybdenum≤0.5%, 0%≤chromium≤0.6%, 0%≤titanium≤0.06%, 0%≤vanadium≤0.1%, 0%≤calcium≤0.005%, 0%≤boron≤0.010%, 0%≤Magnesium≤0.05%, 0%≤Zirconium≤0.05%, 0%≤Cerium≤0.1%, and the balance including iron and unavoidable impurities, the steel sheet having a microstructure comprising 35% to 65% Partitioned Martensite, 15% to 40% of Bainite, 14% to 30% of residual austenite, 4% to 15% of ferrite and 0% to 10% fresh martensite in area fractions, the balance being partitioned martensite.
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
A steel for leaf spring including of the following elements 0.4% ≦ C ≦ 0.7 %; 0.5% ≦ Mn ≦1.5 %;1% ≦ Si ≦ 2.5 %; 0.001% ≦ Al ≦ 0.1%; 0.1% ≦ Ni ≦ 1%;0.2% ≦ Cr ≦ 1.5 %; 0 ≦ P ≦ 0.09%; 0 ≦ S ≦ 0.09%; 0% ≦ N ≦ 0.09%; 0% ≦ Mo ≦ 0.5%; 0% ≦ V ≦ 0.2%; 0% ≦ Nb ≦ 0.1%; 0% ≦ Ti ≦ 0.1%; 0% ≦ Cu ≦ 1%; 0% ≦ B ≦ 0.008%; 0% ≦ Sn ≦ 0.1%; 0% ≦ Ce ≦ 0.1%; 0% ≦ Mg ≦ 0.10%; 0% ≦ Zr ≦ 0.10%; the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel including, by area percentage, 75% to 98% of Martensite, 2% to 20% of Residual Austenite, with a cumulative optional presence of bainite and ferrite between 0% to 5%.
A steel for forging mechanical parts including of the following elements 0.04%≤C≤0.28%; 1.2%≤Mn≤2.2%; 0.3%≤Si≤1.2%; 0.5%≤Cr≤1.5%; 0.01%≤Ni≤1%; 0%≤S≤0.06%; 0%≤P≤0.02%; 0%≤N≤0.015%; 0%≤Al≤0.1%; 0.03%≤Mo≤0.5%; 0%≤Cu≤0.5%; 0.04%≤Nb≤0.15%; 0.01%≤Ti≤0.1%; 0%≤V≤0.5%; 0.0015%≤B≤0.004%; the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel having microstructure including in area fraction, 55% to 85% of Martensite, 20% to 45% of Auto-tempered Martensite, 0 to 10% Residual Austenite and, wherein cumulated amounts of Auto-tempered martensite and martensite is at least 90%.
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Common metals and their alloys; iron; steel; steel products; steel powders and other common metallic powders, cast steel; metallic powder material, in particular to be used for coating, pressing, sintering, extruding, drawing, stamping or cutting; metallic powder material for use in 3D printing, additive manufacturing and other powder metallurgy processes; steel products or metallic parts made of processed metallic powders. Machines and machine tools; additive manufacturing machines; 3D printers; inclusive of components and parts necessary for additive manufacturing processes. Treatment of steel or metallic powders for parts, prototypes, designs, shapes and tools as well as other kinds of three-dimensional objects by a generative manufacturing process; treatment of powders for generative production of three-dimensional objects, particularly by laser sintering, laser fusion, sintering or fusion of electron beam; cladding or spraying of metallic powders. Technological consultation, research, design, algorithm development, and implementation of services for developing and optimizing additive manufacturing machines or processes. Algorithm design, software development, and customization activities for build plate nesting and parts design.
99.
Cold rolled, annealed and tempered steel sheet and method of manufacturing the same
A cold rolled, annealed and partitioned steel sheet, made of a steel having a composition including, by weight percent: C: 0.05 - 0.18%, Mn: 6.0 - 11.0%, Mo: 0.05 - 0.5%, B: 0.0005 - 0.005%, S ≤ 0.010%, P ≤ 0.020%, N ≤ 0.008%, and including optionally one or more of the following elements, in weight percentage: Al < 3%, Si ≤ 1.20%, Ti ≤ 0.050%, Nb ≤ 0.050%, Cr ≤ 0.5%, V ≤ 0.2%, the remainder of the composition being iron and unavoidable impurities resulting from the smelting, said steel sheet having a microstructure including, in surface fraction, from 0% to 30% of ferrite, such ferrite, when present, having a grain size below 1.0 µm, from 8% to 40% of retained austenite, the fraction of austenite islands with a size above 0.5 µm being below or equal to 5% from 30 to 92% of partitioned martensite less than 3% of fresh martensite, a carbon [C]A and manganese [Mn]A content in austenite, expressed in weight percent, such that the ratio ([C]A2 x [Mn]A) / (C%2 x Mn%) is below 18.0, C% and Mn% being the nominal values in carbon and manganese in weight %.
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
B32B 7/05 - Liaison entre couches les couches n’étant pas liées sur toute la surface, p. ex. liaison discontinue ou par motifs particuliers
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
F16B 5/08 - Jonction de feuilles ou de plaques soit entre elles soit à des bandes ou barres parallèles à elles par soudage ou procédés similaires
A cold rolled and double annealed steel sheet, made of a steel having a composition including, by weight percent: C: 0.03-0.18%, Mn: 6.0-11.0%, 0.2≤Al<3%, Mo: 0.05-0.5%, B: 0.0005-0.005%, S≤0.010%, P≤0.020%, N≤0.008%, and including optionally one or more of the following elements. In weight percentage: Si≤1.20%, Nb≤0.050%, Ti≤0.050%, Cr≤0.5%,V≤0.2%, the remainder of the composition being iron and unavoidable impurities resulting from the smelting, the steel sheet having a microstructure including, in surface fraction, from 0% to 45% of ferrite, from 20% to 50% of retained austenite, from 5 to 80% of annealed martensite, less than 5% of fresh martensite, a carbon [C]A and manganese [Mn]A content in austenite, expressed in wt %, such that the ratio ([C]A2×[Mn]A)/(C %2×Mn %) is from 4.5 to 11.0, C % and Mn % being the nominal C and Mn weight percent in the steel and a carbides density below 4×106/mm2.
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet pour tôles
