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).
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).
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 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling foils which present special problems, e.g. because of thinness
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 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)
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%.
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)
C25B 1/04 - Hydrogen or oxygen by electrolysis of water
C25B 1/042 - Hydrogen or oxygen by electrolysis of water by electrolysis of steam
C25B 9/73 - Assemblies comprising two or more cells of the filter-press type
F27B 3/26 - Arrangements of heat-exchange apparatus
F27B 9/06 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity electrically heated
F27D 17/00 - Arrangement for using waste heat; Arrangement for using, or disposing of, waste gases
F27D 99/00 - Subject matter not provided for in other groups of this subclass
15.
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 8/00 - Modifying the physical properties by deformation combined with, or followed by, heat treatment
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
C21D 8/04 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
B21B 1/38 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets
B21D 22/02 - Stamping using rigid devices or tools
C22C 21/10 - Alloys based on aluminium with zinc as the next major constituent
C22C 21/02 - Alloys based on aluminium with silicon as the next major constituent
C22C 21/06 - Alloys based on aluminium with magnesium as the next major constituent
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.
C25B 1/04 - Hydrogen or oxygen by electrolysis of water
C25B 1/042 - Hydrogen or oxygen by electrolysis of water by electrolysis of steam
C25B 9/73 - Assemblies comprising two or more cells of the filter-press type
F27B 3/26 - Arrangements of heat-exchange apparatus
F27B 9/06 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity electrically heated
F27D 17/00 - Arrangement for using waste heat; Arrangement for using, or disposing of, waste gases
F27D 99/00 - Subject matter not provided for in other groups of this subclass
19.
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 8/00 - Modifying the physical properties by deformation combined with, or followed by, heat treatment
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
C21D 8/04 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
B21D 22/02 - Stamping using rigid devices or tools
B21D 35/00 - Combined processes according to methods covered by groups
20.
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.
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.
F27D 3/18 - Charging particulate material using a fluid carrier
F27B 3/10 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces - Details, accessories, or equipment, e.g. dust-collectors, peculiar to hearth-type furnaces
F27B 3/19 - Arrangement of devices for discharging
F27D 3/14 - Charging or discharging liquid or molten material
26.
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.
F27D 3/18 - Charging particulate material using a fluid carrier
F27B 3/10 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces - Details, accessories, or equipment, e.g. dust-collectors, peculiar to hearth-type furnaces
F27B 3/19 - Arrangement of devices for discharging
F27D 3/14 - Charging or discharging liquid or molten material
27.
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 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.
F27D 3/18 - Charging particulate material using a fluid carrier
F27B 3/10 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces - Details, accessories, or equipment, e.g. dust-collectors, peculiar to hearth-type furnaces
F27B 3/19 - Arrangement of devices for discharging
F27D 3/14 - Charging or discharging liquid or molten material
36.
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.
F27D 3/18 - Charging particulate material using a fluid carrier
F27B 3/10 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces - Details, accessories, or equipment, e.g. dust-collectors, peculiar to hearth-type furnaces
F27B 3/19 - Arrangement of devices for discharging
F27D 3/14 - Charging or discharging liquid or molten material
F27D 3/15 - Tapping equipment; Equipment for removing slag
38.
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 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%.
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 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
C21D 9/32 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
C21D 7/13 - Modifying the physical properties of iron or steel by deformation by hot working
45.
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 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
46.
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 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
B21D 28/06 - Making more than one part out of the same blank; Scrapless working
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 - Solid fuels essentially based on materials of non-mineral origin on vegetable substances
C10B 53/02 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
C22B 1/244 - Binding; Briquetting with binders organic
48.
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 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
49.
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 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
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 - Solid fuels essentially based on materials of non-mineral origin on vegetable substances
C10B 53/02 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
C22B 1/244 - Binding; Briquetting with binders organic
51.
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 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
52.
HIGH MANGANESE HOT ROLLED STEEL AND A METHOD OF PRODUCTION THEREOF
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.
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%.
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 %.
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.
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.
Floor panel reinforcement member (1) for an automotive vehicle (100) attached to a floor panel (3) and comprising at least: -a front longitudinal portion (11) extending substantially longitudinally from a dash panel (4) to a transition portion (31) and forming with said floor panel (3) a front longitudinal hollow volume (10), -a front transverse portion (21) extending in a substantially transverse direction between right and left side sills (61, 62) of said vehicle, forming with said floor panel (3) a front transverse hollow volume (20) and connected to said front longitudinal portion (11) in the transition portion (31), wherein said floor panel reinforcement member (1) is manufactured by forming a single metal blank (7).
Floor panel reinforcement member (1) for an automotive vehicle (100) attached to a floor panel (3) and comprising at least: -a front longitudinal portion (11) extending substantially longitudinally from a dash panel (4) to a transition portion (31) and forming with said floor panel (3) a front longitudinal hollow volume (10), -a front transverse portion (21) extending in a substantially transverse direction between right and left side sills (61, 62) of said vehicle, forming with said floor panel (3) a front transverse hollow volume (20) and connected to said front longitudinal portion (11 ) in the transition portion (31), wherein said floor panel reinforcement member (1 ) is manufactured by forming a single metal blank (7).
The invention relates to a method for erecting a portion of a transportation structure comprising a first assembly of tube segments, capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the method comprising: (a) erecting a substructure comprising a first plurality of girders forming a first transportation pathway and a plurality of platforms forming a service pathway, the erecting step comprising conveying with vehicle(s) the girders and platforms along the first transportation pathway, positioning them and having the vehicle(s) return along the service pathway, (b) conveying, with vehicle(s), the tube segments along the first transportation pathway, positioning them and having the vehicle(s) return along the service pathway. The invention also relates to the portion of transportation structure thereof.
E01B 25/30 - Tracks for magnetic suspension or levitation vehicles
E01D 18/00 - Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
The invention relates to a method for erecting a portion (1) of a transportation structure comprising two assemblies (12, 13) of tube segments (14), capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the method comprising: (a) erecting a substructure (2) comprising a first plurality of girders (6) forming a first transportation pathway (7), a second plurality of girders forming a second transportation pathway and a plurality of platforms forming a service pathway (10), the erecting step comprising conveying with vehicle(s) the girders and platforms along the first and/or second transportation pathway, positioning them and having the vehicle(s) return along the service pathway, (b) conveying, with vehicle(s), the tube segments along the first and/or second transportation pathway, positioning them and having the vehicle(s) return along the service pathway. The invention also relates to the portion of transportation structure thereof.
E01B 25/30 - Tracks for magnetic suspension or levitation vehicles
E01D 18/00 - Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
The invention relates to a method for erecting a portion of a transportation structure comprising a plurality of piers (3), a plurality of platforms (8) forming a service pathway, a first plurality of girders (6) forming a first assembly of tube segments (14) and a first rooftop transportation pathway (7), a second plurality of girders (6) forming a second assembly of tube segments (14) and a second rooftop transportation pathway (10), both assemblies being capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the method comprising conveying with vehicle(s) the girders and platforms along the first and/or second rooftop transportation pathway, positioning them and having the vehicle(s) return along the service pathway. The invention also relates to the portion of transportation structure thereof.
E01B 25/30 - Tracks for magnetic suspension or levitation vehicles
E01D 18/00 - Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
E01D 21/00 - Methods or apparatus specially adapted for erecting or assembling bridges
E01D 21/06 - Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
F16L 1/024 - Laying or reclaiming pipes on land, e.g. above the ground
F16L 1/036 - Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
F16L 1/10 - Accessories therefor, e.g. anchors for aligning
F16L 3/26 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting the pipes all along their length, e.g. pipe channels or ducts
The invention relates to a method for erecting a portion of a transportation structure comprising a plurality of piers (3), a first plurality of girders (6) forming a first assembly of tube segments and a first rooftop transportation pathway (7), a second plurality of girders forming a second assembly of tube segments and a second rooftop transportation pathway (10), both assemblies being capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the method comprising conveying with vehicles the girders along one single rooftop transportation pathway, positioning them and having the vehicles return along the other rooftop transportation pathway. The invention also relates to the portion of transportation structure thereof.
E01B 25/30 - Tracks for magnetic suspension or levitation vehicles
E01D 18/00 - Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
The invention relates to a method for erecting a portion of a transportation structure comprising a plurality of piers, a plurality of platforms forming a service pathway, a first plurality of girders forming a first assembly of tube segments, capable of being placed under low air pressure and through which pods may travel substantially free of air friction, and forming a first rooftop transportation pathway the method comprising conveying with vehicle(s) the girders and platforms along the first transportation pathway, positioning them and having the vehicle(s) return along the service pathway. The invention also relates to the portion of transportation structure thereof.
E01B 25/30 - Tracks for magnetic suspension or levitation vehicles
E01D 18/00 - Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
The invention relates to of a portion of transportation structure comprising: a substructure comprising a plurality of piers, a first plurality of girders (6) positioned on at least some of the piers and forming a first transportation pathway, a first assembly of tube segments (14), capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the first assembly of tube segments been positioned on the first transportation pathway and each tube segment comprising: a main tube with legs (27) distributed along the length of the main tube and suitable for the main tube to rest on the substructure on its legs, shims (28) positioned in-between the substructure and at least part of the legs, the thickness of each shim been adapted so that the deflection of the substructure between piers is offset.
E01B 25/30 - Tracks for magnetic suspension or levitation vehicles
E01D 18/00 - Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
F16L 1/024 - Laying or reclaiming pipes on land, e.g. above the ground
F16L 1/036 - Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
F16L 1/10 - Accessories therefor, e.g. anchors for aligning
F16L 3/26 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting the pipes all along their length, e.g. pipe channels or ducts
The invention relates to a method for erecting a portion of a transportation structure comprising two assemblies of tube segments, capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the method comprising: (a) erecting a substructure comprising a first plurality of girders forming a first transportation pathway and a second plurality of girders forming a second transportation pathway, the erecting step comprising conveying with vehicle(s) the girders along one single transportation pathway, positioning them and having the vehicle(s) return along the other transportation pathway, (b) conveying, with vehicle(s), the tube segments along one single transportation pathway, positioning them and having the vehicle(s) return along the other transportation pathway. The invention also relates to the portion of transportation structure thereof.
E01B 25/30 - Tracks for magnetic suspension or levitation vehicles
E01D 18/00 - Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
A method for the treatment of ferrous scrap (1) comprising magnetic and non-magnetic materials, said method comprising at least a friction step (110) wherein the ferrous scrap is subjected to a mechanical friction to obtain cleaned scrap (11) and a magnetic sorting step (120) wherein the cleaned scrap (11) is separated into a non-magnetic coarse fraction (12A) and a magnetic coarse fraction (12B). Associated steelmaking method and plant.
The invention relates to a ferrous alloy powder for additive manufacturing comprising an homogeneous distribution of endogenous nitrides and/or carbonitrides of at least one element chosen among a group consisting of titanium, aluminium, chromium, boron, hafnium, vanadium, zirconium, silicon, niobium, tantalum and REM, the nitrogen content of such ferrous alloy powder being above the solubility limit of nitrogen in such meta, and to the manufacturing process of such powder.
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
Front member assembly (1) for an automotive vehicle comprising an upper shell (11) and a lower shell (12), wherein said upper and lower shells (11, 12) each comprise a right, left and transverse portion and wherein said upper and lower shells are assembled together by attaching them at least along upper and lower contours (1121, 1122, 1221, 1222, 1131, 1132, 1231, 1232) of said right and left portions.
Front member assembly (1) for an automotive vehicle comprising an upper shell (11) and a lower shell (12), wherein said upper and lower shells (11, 12) each comprise a right, left and transverse portion and wherein said upper and lower shells are assembled together by attaching them at least along upper and lower contours (1121, 1122, 1221, 1222, 1131, 1132, 1231, 1232) of said right and left portions.
The invention relates to a ferrous alloy powder for additive manufacturing, obtained by atomization with a gas made of at least 95% in volume of nitrogen, said alloy comprising carbon up to 0.5wt.%, titanium up to 11.0 wt.%, boron up towt.%, manganese up to 30 wt.%, aluminium up to wt.%, silicon up to 1.5 wt.%, vanadium up to 0.5 wt.%, copper up to 2 wt.%, niobium up to 2 wt.%, the remainder being iron and residual elements, said powder comprising endogenous nitrides and/or carbonitrides of at least one element chosen among a group consisting of titanium, aluminium, boron, vanadium, silicon, and niobium, the nitrogen content of such ferrous alloy powder being above the solubility limit of nitrogen in such alloy, at the atomization temperature. The invention also relates to the manufacturing method of such powder.
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
A method for manufacturing iron metal in an apparatus through reduction of iron ore by an electrolysis reaction, said electrolysis reaction generating a gas, the apparatus comprising at least one casing including a gas permeable anode plate, a cathode plate, both facing each other and being separated by an electrolyte chamber, said cathode and said anode being connected to an electric power supply, said casing being provided with means for circulating an electrolyte within the chamber and with means to supply iron ore to said chamber, the pressure P of the electrolyte within said casing being maintained at a value of at least Plimit and the voltage V applied between said cathode and said anode being maintained at a value of at least Vlimit, such Plimit and Vlimit values being previously determined as the voltage and pressure values at the intersection of the respective reduction curves showing the voltage at which the electrolysis of said electrolyte and of said iron ore occurs as a function of the pressure, said voltage V being always kept at a value strictly below said reduction curve of the electrolyte for said pressure P.
F27B 9/04 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
F27D 7/02 - Supplying steam, vapour, gases, or liquids
The invention relates to a method for heating a semi-finished steel product, comprising : a pre-heating step, performed in a pre-heating device comprising a chamber containing solid particles, a heat exchanger, a support able to support said semi-finished steel product, a gas injector, and a heating step, performed in a furnace, wherein, said pre-heating step comprises the steps of : i. injecting a gas into said first chamber so as to form a first fluidized bed, ii. heating said fluidized bed by means of said heat exchanger, iii. putting said semi-finished steel product, into said fluidized bed and onto said support such said fluidized bed is able to transfer heat to said metallic product, iv. taking out said semi-finished steel product when its temperature is from 200°C to 1000°C, and said heating step comprises the step heating said semi-finished product to a temperature from 1100 to 1400°C.
An apparatus (1) for the production of iron metal through reduction of iron ore by an electrolysis reaction, the apparatus comprising a electrolyte circulation device (30) including a pumping device (22) located at one extremity of the casing (4) and at least a first (31A) check valve located in the electrolyte chamber (6) and a second (31B) check valve located in the gas recovery part (8), said electrolyte circulation device (30) being designed, when actuating by an actuator (28), to aspirate the electrolyte (5) from the electrolyte chamber (6) or to pull the electrolyte (5) back into the gas recovery part (8).
The invention concerns an apparatus (1) for the production of iron through reduction of iron ore by an electrolysis reaction, said electrolysis reaction emitting a gas, the apparatus comprising a casing (4) including a gas permeable anode plate (2) being made of a cellular material, a cathode plate (3), both facing each other and being separated by an electrolyte chamber (6).
Method for butt-welding two steel sheets comprising the steps of: - providing two steel sheets having a composition such that the gamma factor of the unamended targeted weld seam composition is strictly higher than 0.39, - butt to butt laser welding them with additional material incorporated in the weld such that the gamma factor of the amended targeted weld seam composition is equal to or lower than 0.39. Wherein Gamma = C + Si/30 + Mn/20 + 4.8*P + 4*S - AI/20.
Method for butt-welding two steel sheets comprising the steps of: - Providing two steel sheets (1, 2), - On all the faces having a zinc based metallic coating thickness Znth above 3.5 microns and a steel sheet substrate (12) with a Carbon content above 0.15% or a Silicon content above 0.5% or both: removing at least part of said metallic coating to form an ablation area before welding (6) having a Zinc-based metallic coating thickness after ablation Znab which is equal to or lower than 3.5 microns and in such a way that the width of the ablation area after welding (8) is equal to or greater than 0.5 mm, - butt welding said steel sheets (1, 2) using at least a laser source.
A Steel manufacturing method comprising the step of producing direct reduced iron (12) and a reduction top gas (13) in a direct reduction plant (1) using a reducing gas (11), the reduction top (13) being at least partly (13A) recycled as reducing gas (11), producing hot metal and a blast furnace top gas (21) in a blast furnace (2), wherein from 200Nm3 to 700Nm3 of hydrogen (20) per ton of hot metal to be produced are injected and the blast furnace top gas (21A) being at least partly sent to a biochemical plant (4) to produce hydrocarbons and producing molten metal and electric furnace gas in an electric furnace (3) using at least a part of the produced direct reduced iron (12).
Method to produce hot metal in at least one blast furnace (1) comprising at least two levels of gas injection (3A, 3B) and emitting a blast furnace top gas (10) when working, said method comprising at least the steps of charging an iron-containing charge (4) and a first carbon-based reductant (5) into the blast furnace, injecting at the first level (3A) a hot blast (11) having a temperature upper or equal to 1000°C, said hot blast comprising oxygen (6), recovering the blast furnace top gas to extract hydrogen to produce an H2-rich stream (13) comprising more than 90%v of hydrogen and an H2-lean stream (12 an injecting the H2-rich stream (11) into the blast furnace at the second level of gas injection (3B). Associated network of plants.
G16C 60/00 - Computational materials science, i.e. ICT specially adapted for investigating the physical or chemical properties of materials or phenomena associated with their design, synthesis, processing, characterisation or utilisation
The present invention relates to a method for manufacturing a heat treated steel sheet, submitted to an annealing process following a temperature curve T as a function of time t in a furnace having atmosphere comprising hydrogen, in which the hydrogen content targeted in the steel sheet at the end of a step of the annealing process is defined.
G16C 60/00 - Computational materials science, i.e. ICT specially adapted for investigating the physical or chemical properties of materials or phenomena associated with their design, synthesis, processing, characterisation or utilisation
The present invention relates to a method for manufacturing a heat-treated steel sheet, submitted to an annealing process following a temperature curve T as a function of time t in a furnace having atmosphere comprising hydrogen, in which the hydrogen content targeted in the steel sheet at the end of a step of the annealing process is defined.
G16C 60/00 - Computational materials science, i.e. ICT specially adapted for investigating the physical or chemical properties of materials or phenomena associated with their design, synthesis, processing, characterisation or utilisation
G16C 60/00 - Computational materials science, i.e. ICT specially adapted for investigating the physical or chemical properties of materials or phenomena associated with their design, synthesis, processing, characterisation or utilisation
F27B 9/04 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
F27D 7/02 - Supplying steam, vapour, gases, or liquids
85.
ELECTROLYSIS APPARATUS FOR THE PRODUCTION OF IRON WITH AN IMPROVED GAS PERMEABLE ANODE PLATE
The invention concerns an apparatus (1) for the production of iron through reduction of iron ore by an electrolysis reaction, said electrolysis reaction emitting a gas, the apparatus comprising a casing (4) including a gas permeable anode plate (2) being made of a cellular material, a cathode plate (3), both facing each other and being separated by an electrolyte chamber (6).
The invention concerns an apparatus (1) for the production of iron through reduction of iron ore by an electrolysis reaction, wherein the means to supply iron ore comprises a twin-screw supplier (32) provided to discharge iron ore powder (46) into an electrolyte feed pipe (31) upstream of the electrolytic chamber (6).
The invention relates to an an apparatus (1) for the production of iron metal through reduction of iron ore by an electrolysis reaction the apparatus comprising a casing (4) including successively a terminal anode plate (2) at a first end of said casing (4), such anode being connected to a source of electric power, at least one bipolar electrode (11) comprising successively a cathode plate (3), a metallic plate (12), a gas recovery part (8) and a gas permeable anode plate (2) and a terminal cathode plate (3) at the other end of said casing (4), such cathode being connected to said source of electric power.
An apparatus (1) for the production of iron through reduction of iron ore by an electrolysis reaction, said electrolysis reaction emitting a gas, the apparatus (1) comprising a casing (4) including a cover plate (12), a gas permeable anode plate (2), a cathode plate (3), both facing each other and being separated by an electrolyte chamber (6), said casing (4) being provided with means for circulating an electrolyte (5) within the electrolyte chamber (6) and with means to supply iron ore (13) to said chamber (6), the casing (4) further comprising a degassing unit (7) which comprises a gas recovery part (8) extending along the opposite side of the anode plate (2) to the electrolyte chamber (6), said gas recovery part (8) comprising a plurality of channels (11a, 11b, 11c) extending longitudinally along the anode plate (2) and tin fluidic connection with a outlet (10).
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
B05D 5/06 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
B05D 7/14 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
90.
STEELMAKING METHOD AND ASSOCIATED NETWORK OF PLANTS
A steel manufacturing method comprising the steps of producing direct reduced iron in a direct reduction plant (1) using a syngas (70) resulting from the gasification of solid waste fuels, producing hot metal (22) and a blast furnace top gas (21) in a blast furnace (2) using a hot blast (20), the blast furnace top gas (21) being at least partly (21A) used into the direct reduction plant (1) and producing molten metal and electric furnace gas in an electric furnace (3) using the produced direct reduced iron (12). Associated network of plants.
The invention relates to a method for heating a semi-finished steel product, comprising : a pre-heating step, performed in a pre-heating device comprising a chamber containing solid particles, a heat exchanger, a support able to support said semi-finished steel product, a gas injector, and a heating step, performed in a furnace, wherein, said pre-heating step comprises the steps of : i. injecting a gas into said first chamber so as to form a first fluidized bed, ii. heating said fluidized bed by means of said heat exchanger, iii. putting said semi-finished steel product, into said fluidized bed and onto said support such said fluidized bed is able to transfer heat to said semi-finished steel product, iv. taking out said semi-finished steel product when its temperature is from 200°C to 1000°C, and said heating step comprises the step heating said semi-finished product to a temperature from 1100 to 1400°C.
A Steel manufacturing method comprising the step of producing direct reduced iron (12) and a reduction top gas (13) in a direct reduction plant (1) using a reducing gas (11), the reduction top (13) being at least partly (13A) recycled as reducing gas (11), producing hot metal and a blast furnace top gas (21) in a blast furnace (2), wherein from 200Nm3 to 700Nm3 of hydrogen (20) per ton of hot metal to be produced are injected and the blast furnace top gas (21A) being at least partly sent to a biochemical plant (4) to produce hydrocarbons and producing molten metal and electric furnace gas in an electric furnace (3) using at least a part of the produced direct reduced iron (12).
The invention relates to a method for estimating the thickness of a varnish coating, having a thickness from 0.5 to 5 μm, of a moving steel substrate comprising a varnish coating comprising the steps of : i. lighting said moving coated steel substrate with an illumination source forming an incident angle from 51° to 61° with respect to the normal of said steel substrate, ii. p-polarizing the light after reflection on said moving steel substrate and measuring the intensities of the light after reflection on said moving steel substrate, iii. assessing an absorbance spectrum of said varnish coating in said wavelength range iv. assessing an area under the curve of said absorbance spectrum AMEAS v. estimating the varnish thickness using said area under the curve and a function linking a varnish thickness and an area under the curve of an absorbance spectrum of said coating.
A low density hot rolled steel comprising of 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 and unavoidable impurities, the steel sheet having a microstructure comprising of ferrite from 55% to 80%, 15% to 50% austenite and martensite from 0% to 10% wherein the microstructure grains having less than 4GPa nano-hardness must be more than 45% and microstructure grains having nano-hardness of more than 5GPa must be less than 22%.
3xx, where x is lower than or equal to 1 and austenite from 0% to 10% wherein the microstructure grains having less than 4GPa nano-hardness must be more than 45% and microstructure grains having nano-hardness of more than 5GPa must be less than 10%.
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
96.
METHOD FOR MEASURING THE THICKNESS OF A VARNISH LAYER
The invention relates to a method for estimating the thickness of a varnish coating, having a thickness from 0.5 to 5 μm, of a moving steel substrate comprising a varnish coating comprising the steps of : i. lighting said moving coated steel substrate with an illumination source forming an incident angle from 51° to 61° with respect to the normal of said steel substrate, ii. p-polarizing the light after reflection on said moving steel substrate and measuring the intensities of the light after reflection on said moving steel substrate, iii. assessing an absorbance spectrum of said varnish coating in said wavelength range iv. assessing an area under the curve of said absorbance spectrum AMEAS v. estimating the varnish thickness using said area under the curve and a function linking a varnish thickness and an area under the curve of an absorbance spectrum of said coating.
The present invention relates to a steel sheet containing manganese from 3.0 to 6.0 % in weight which has both a good coatability by liquid zinc and a good LME resistance. The present invention also aims to make available an easy to implement method to obtain said steel sheet and an assembly which does not have LME issues after spot-welding.
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
C22C 38/24 - Ferrous alloys, e.g. steel alloys containing chromium with vanadium
C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas
C23C 28/02 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of metallic material
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
C21D 1/76 - Adjusting the composition of the atmosphere
The invention relates mainly to an apparatus (1 ) for the production of iron metal through reduction of iron ore by an electrolysis reaction, said electrolysis reaction generating a gas, the apparatus comprising a casing (4) including a gas permeable anode plate (2), a cathode plate (3), both facing each other and being separated by an electrolyte chamber (6). The apparatus (1 ) further comprises a gas recovery part (8) provided with an electrolyte recirculation part (9) with gas-liquid partition means (11).
The present invention relates to a steel sheet containing manganese from 3.0 to 6.0 % in weight which has both a good coatability by liquid zinc and a good LME resistance. The present invention also aims to make available an easy to implement method to obtain said steel sheet and an assembly which does not have LME issues after spot-welding.
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
C22C 38/24 - Ferrous alloys, e.g. steel alloys containing chromium with vanadium
C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas
C23C 28/02 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of metallic material
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
C21D 1/76 - Adjusting the composition of the atmosphere
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
C23C 2/06 - Zinc or cadmium or alloys based thereon
100.
HOT STAMPING DIE AND HOT STAMPING PROCESS USING A HOT STAMPING PRESS
The invention relates to a hot stamping die (2,3) comprising a die body (11) having a work face (9) which is in contact with a blank during the hot stamping operation, and at least one porous die portion (4) having a corresponding porous work face portion (7), said porous die body portion being in contact with a reservoir (6, 40), said reservoir (6, 40) containing a cooling medium (8), and said porous die body portion comprising a plurality of ejection channels (5) extending from said reservoir (6, 40) to said porous work face portion, wherein said ejection channels (5) are configured to eject said cooling medium (8) from the reservoir ( 6, 40) towards said porous work face portion (7) when the pressure on the cooling medium is increased above a threshold ejection pressure, and wherein said die (2,3) does not comprise any discharge channels to evacuate excess ejected coolant from the dies after hot stamping.
patents
