The invention deals with a cold rolled and heat treated steel sheet comprising in weight percent: 0.2 % ? C ? 0.35 %; 0.5 % ? Mn ? 1.5 %; 0.1% ? Si ? 0.6 %; 0% ? Al ? 0.1 %; 0.01% ? Ti ? 0.1%; 0.0001% ? B ? 0.010%; 0% ? P ? 0.02%; 0% ? S ? 0.03%; 0% ? N ? 0.09% and can contain optional elements, the microstructure of said steel comprising, by area percentage, at least 80% of tempered martensite, 3 to 15% Bainite,1% to 7% Martensite, 0 to 12% of Ferrite and 0 to 2% Residual Austenite.
The invention relates to a method for manufacturing a heat spreader comprising the steps of i. depositing an adhesive on a major surface of at least one graphite layer, to obtain at least one graphite layer coated by an adhesive layer, wherein ii. positioning said at least one graphite layer coated by an adhesive layer on top of each other so as to form a first stack of layers alternating graphite layer and adhesive layer iii. positioning a graphite layer having a thickness from 10 to 200 µm, on said first stack of layers so as to form a second stack of layers, having a graphite layer as top and bottom layers iv. compressing said second stack of layer with a pressure from 7 to 20 MPa to form a graphite-based laminate, v. heating said graphite-based laminate such that the solvent of the adhesive is removed.
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups
H01L 23/373 - Cooling facilitated by selection of materials for the device
This patent relates to a method for depositing metallic coatings on a substrate comprising : - an annealing step, in an annealing furnace, forming on said substrate, a ferritic surface layer having a thickness from 10 µm to 50 µm and a microstructure comprising in surface fraction up to 10% of cumulated amount of martensite, bainite and the balance being made of ferrite, - a skin pass step, - a coating step, inside a vacuum chamber, wherein a metallic vapour is ejected towards at least a side of said substrate to form a surface layer of at least one metal.
The invention relates to a vapour jet coater for depositing, on a running substrate, coatings formed from metal or metal alloy, said vapour jet coater comprising successively : - a repartition chamber, configured to be connectable to an evaporation pipe, and - a vapour outlet orifice, connected to said repartition chamber and able to eject a metal alloy vapour along a main ejection plan and a main ejection direction, comprising successively i. a converging section, ii. a diverging section.
A coating apparatus (1) for the continuous manufacturing of steel strips S coated with a varnish for electrical applications comprising a tank (2), a coating roll (3) and an applicator roll (4) wherein: - said tank (2) is able to contain a varnish solution and is configured such that said coating roll (3) is in contact with said varnish solution, - said coating roll (3) is configured to be in contact with said applicator roll (4) and to homogenously transfer, in the steel strip width direction, said varnish onto said applicator roll (4), - said applicator roll (4) is configured to be in contact with said steel strip S, and to homogeneously coat said steel strip in the width of said steel strip and the surface of said applicator roll has a hardness from 40 to 60 shores A.
B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
B05C 9/04 - Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by groups , or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
B05D 1/28 - Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
B05D 7/16 - 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 using synthetic lacquers or varnishes
C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
6.
COLD ROLLED AND HEAT TREATED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF
A cold rolled and heat treated steel sheet having a composition comprising of the following elements, 0.05%=Carbon=0.12%, 1.0%=Manganese=2%, 0.01 %=Silicon=0.5%, 0.01 %=Aluminum=0.1 %, 0.01 %=Niobium=0.1 %, 0%=Phosphorus=0.09%,0%=Sulfur=0.09%, 0%=Nitrogen=0.09%, 0.1 %=Chromium = 0.5 %, 0 % < Nickel < 3%, 0 % = Titanium < 0.1 %, 0 % = Calcium = 0.005%, 0 % = Copper = 2%, 0 % = Molybdenum = 0. 5%,0 % < Vanadium < 0.1%, 0 % = Boron = 0.003%,0 % = Cerium = 0.1 %,0 % = Magnesium = 0.010%,0 % = Zirconium = 0.010% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 50 to 90% Recrystallized ferrite, 10 to 50% non-recrystallized ferrite, 0% to 15% Cementite and 0.5% to 2% Carbides of Niobium, wherein the cumulated amount of Recrystallized ferrite and Non-recrystallized ferrite is at least 85%.
A gas injected upper tundish nozzle comprising: a protective can; a ceramic inner portion disposed within said protective can, said ceramic inner portion having gas flow pathways therein; a gas injection port attached to said protective can allowing for the injection of gas through the protective can and into the gas flow pathways within the ceramic inner portion. A gas flow seal is formed between the protective can and the ceramic inner portion. The gas flow seal blocks gas leakage from the gap between the protective can and the ceramic inner portion. The gas flow seal is formed of nickel or an alloy of nickel.
The present invention relates to a high strength, high slenderness structural part having excellent energy absorption properties in the case of an impact. In particular, the present invention relates to a structural part for use in an automotive vehicle. The structural part has an ultimate tensile strength higher than 1000MPa, a yield strength to ultimate tensile strength ratio higher than 0,85, a bending angle normalized to 1,5mm thickness higher than 55° and a slenderness ratio higher than 10.
The invention relates to a calibrating bar, for calibrating a multi-roll leveller for metal strips, said calibrating comprising - a first groove on a first face wherein a first optical fibre is embedded by means of an adhesive, - a second groove on a second face, being opposite to said first face, wherein a second optical fibre is embedded by means of an adhesive, - said first optical fibre and said second optical fibre comprising a fibre Bragg grating and being essentially parallel, - said first optical fibre and said second optical fibre being located at the same distance from said neutral plane N, - said first embedded optical fibre and said second embedded optical fibre being configured such that they can be connected to an optical coupler and such that it has a sufficient length to extend over all the rolls of said multi-roll leveller.
G01B 11/16 - Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
B21D 1/02 - Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
10.
HIGH STRENGTH PRESS HARDENED STEEL PART AND METHOD OF MANUFACTURING THE SAME
The invention deals with a press hardened steel part having a composition comprising, by weight percent: C 0.2 - 0.34 %, Mn 0.50 1.24 %, Si 0.5 2 %, P = 0.020 %, S = 0.010 %, N = 0.010 %, and comprising optionally one or more of the following elements: Al: =0.2 %, Cr = 0.8 %, Nb = 0.06 %, Ti = 0.06 %, B = 0.005% Mo = 0.35% the remainder of the composition being iron and unavoidable impurities resulting from the smelting. The press hardened steel part has a microstructure comprising, in surface fraction, 95% or more of tempered martensite and 5% or less of bainite, austenite or ferrite.
A hot rolled steel sheet having a composition comprising of elements, 0.02%=Carbon=0.2%, 3%=Manganese=9%, 0.2%=Silicon=1.2%, 0.9%=Aluminum=2.5%, 0%=Phosphorus=0.03%, 0%=Sulfur=0.03%, 0%=Nitrogen=0.025%, 0%=Molybdenum=0.6%, 0%=Titanium=0.1%, 0.0001%=Boron=0.01%, 0%=Chromium=0.5%, 0%=Niobium=0.1%, 0%=Vanadium=0.2%, 0%=Nickel=1%, 0%=Copper=1%, 0%=Calcium=0.005%, 0%=Magnesium=0.0010% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, at least 60% of tempered martensite, 15% to 40% residual austenite, 0% to 10% polygonal ferrite, 0% to 5% of bainite, 0to 15% of fresh martensite and 0% to 5% of carbides of Niobium, Titanium,Vanadium or Iron.
A hot rolled steel sheet having a composition comprising of the elements, 0.02%=Carbon=0.2%, 3%=Manganese=9%, 0.2%=Silicon=1.2%, 0.9%=Aluminum=2.5%, 0%=Phosphorus=0.03%, 0%=Sulfur= 0.03%, 0%=Nitrogen=0.025%, 0%=Molybdenum=0.6%, 0%=Titanium=0.1%, 0.0001%=Boron=0.01%, 0%=Chromium=0.5%, 0%=Niobium=0.1%, 0%=Vanadium=0.15%, 0%=Nickel=1%, 0%=Copper=1%, 0%=Calcium=0.005%, 0%=Magnesium=0.0010%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, at least 60% of tempered martensite, 15% to 40% residual austenite, 0% to 10% polygonal ferrite, 0% to 5% of bainite, 0 to 15% of fresh martensite and 0% to 5% of carbides of Niobium, Titanium,Vanadium or Iron.
The invention deals with a cooling systems of battery pack comprising a metallic coated steel sheet wherein said metallic coating comprises aluminium, zinc, optionally silicon and unavoidable impurities coming from the production process.
The invention deals with a cooling systems of battery pack comprising a metallic coated steel sheet wherein said metallic coating is based on aluminium and comprises optionally silicon and unavoidable impurities.
The invention deals with a top cover of a battery pack comprising a metallic coated steel sheet wherein said metallic coating is topped by an organic coating and wherein said organic coating has two layers, the first layer of the organic coating in contact with the metallic coating having a thickness of 2 to 25 µm, and the second layer of the organic being based on polyester or polyurethane.
B05D 7/00 - 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
H01M 50/282 - Lids or covers for the racks or secondary casings characterised by the material having a layered structure
B05D 1/28 - Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
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 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
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C23C 2/06 - Zinc or cadmium or alloys based thereon
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 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
16.
STEEL SHEET FOR TOP COVER OF BATTERY PACK AND ITS MANUFACTURING METHOD
The invention deals with a top cover of battery pack comprising a metallic coated steel sheet wherein said metallic coating is based on zinc and comprises aluminium, magnesium and unavoidable impurities.
The invention deals with a top cover of battery pack comprising a metallic coated steel sheet wherein said metallic coating is based on aluminium and comprises optionally silicon and unavoidable impurities.
H01M 50/231 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks having a layered structure
H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
The present invention relates to a cold rolling stand for rolling a metallic strip comprising: a pair of work rolls determining a roll bite, a first set of spraying devices able to spray a first lubricant onto said pair of work rolls, a second set of spraying devices able to spray a second lubricant upstream of said work rolls, collecting means able to collect said first and second lubricants, an inversion system, a tank connected to said collecting means, to said first set of spraying devices and to said inversion system, said tank being able to contain said sprayed lubricant, said inversion system being connected to said second set of spraying devices. This invention also relates to a cold rolling process.
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
The invention relates to a reservoir of molten metal atomizer comprising i) a tundish comprising a) a bottom and a side substantially delimiting a central cavity whose bottom comprises a central portion and a periphery, b) at least one discharging zone in the form of a top-opened recess in the side of the tundish and comprising a bottom positioned at most at the level of the periphery of the bottom of the central cavity, a discharging opening in the bottom and a shut-off device for the discharging opening, ii) a bell whose lip is positioned towards the bottom of the tundish, the bell being substantially centered on the tundish and extending above at least 50% of the bottom of the tundish, the bell comprising in its upper section a gas injector. The invention also relates to the process thereof.
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
B22D 11/118 - Refining the metal by circulating the metal under, over or around weirs
B22D 41/015 - Heating means with external heating, i.e. the heat source not being a part of the ladle
B22D 41/08 - Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like for bottom pouring
B22D 41/16 - Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
The invention relates to a welding method for the manufacture of an assembly of at least two steel substrates spot welded together through at least one spot welded joint, comprising: A. The provision of said substrates (3, 3') wherein a first one is a press hardened steel part obtained by press hardening of a steel sheet coated with an aluminium based coating, B. The application of a spot-welding cycle with a spot-welding machine, comprising welding electrodes (1,T) and a spot-welding power source (2) applying a current, through said substrates, said cycle (21) consisting of: - at least three pulsations (22, 32, 42), each having the same maximum pulsation current (Cp) applied through said substrates, each pulsation duration p being identical and set from 20 to 60 ms, - each pulsation being followed by the same cooling time c set from 30 to 50 ms, wherein the welding parameter Wp value is at least 0.8, Wp being defined as Wp = (t x c)/p t being the average thickness of the substrate in mm, c being the cooling time in ms, p being the pulsation duration in ms.
The invention deals with a process for manufacturing a steel part, comprising the following successive steps: providing a steel sheet having a composition comprising by weight percent: C: 0.05 0.25 %, Mn: 3.5 8 %, Si 0.1 - 2%, Al: 0.01 - 3%, S = 0.010 %, P = 0.020 %, N = 0.008 %, and comprising optionally one or more of the following elements, in weight percentage: Cr: 0 0.5%, Mo : 0 0.25%, the remainder of the composition being iron and unavoidable impurities resulting from the smelting, and having a microstructure comprising, in surface fraction, between 10% and 50% of retained austenite, 50% or more of the sum of ferrite, bainite and tempered martensite, less than 5% of fresh martensite, less than 2% of carbides and a carbon [C]A content in austenite, strictly more than 0.4% and strictly less than 0.7%, cutting said steel sheet to a predetermined shape, so as to obtain a steel blank, heating the steel blank to a temperature Twarm comprised from (Md30-150°C) to (Md30-50°C), punching or shearing and forming the heat-treated steel blank at the said Twarm temperature to obtain a steel part.
The current invention provides for a computerized method to determine the aptitude of a metallic part to be manufactured by roll forming and to classify metallic parts into one of the following categories: roll-formable without modification, roll- formable with modifications, not roll-form able. It also provides for a computerized method to compute the roll forming direction of a part. It further provides a method for determining the aptitude to roll forming of a large set of parts, such as for example part of the set of parts making up an automotive vehicle. The purpose of the current invention is further to provide a manufacturing method for a metallic part.
G06F 30/20 - Design optimisation, verification or simulation
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
B21B 37/28 - Control of flatness or profile during rolling of strip, sheets or plates
B21D 5/08 - Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
The invention relates to a process for manufacturing metal powders comprising: i) feeding an atomization chamber of a gas atomizer with molten metal, (ii) atomizing the molten metal by injection of gas so as to form metal particles, (iii) transferring the metal particles from the atomization chamber to a cooling chamber of the gas atomizer, (iv) cooling the metal particles in the cooling chamber by injecting gas from the bottom of the cooling chamber so as to form a bubbling fluidized bed of metal particles. The invention also relates to the gas atomizer thereof.
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
Method for producing a steel part comprising by weight: 0.05% = C = 0.15%, 0.01% = Si = 1%, 1.2% = Mn = 2%, 0.1% = Cr = 2%, 0.001 = Al = 0.1%, 0.003% = N = 0.01%, 0 = S = 0.015%, 0 = P = 0.015%,0% = Ni = 1%,0% = B = 0.01%, 0% = Mo = 1%, 0% = Ti = 0.04 %, 0% = Nb = 0.1%, 0 = V = 0.5% the remainder consisting of iron and unavoidable impurities, annealing this semi-finished product at an annealing temperature strictly lower than the Ac1 temperature of the steel; cooling it down to room temperature; cold forming the semi-finished product into a cold formed product; subjecting the cold formed product to a heat treatment comprising heating the cold formed product to a heat treatment temperature greater than or equal to the full austenitisation temperature Ac3 of the steel; and quenching to room temperature; optionally reheating the product at a holding temperature from 180°C to 400°C for a time from 15 minutes to 2 hours.
The present invention provides for a method to quickly change a nozzle assembly suitable for use in a liquid metal atomizing process in which a liquid metal held in a liquid metal reservoir and exiting said metal reservoir through a reservoir opening is atomized by an atomizing fluid to form a metallic spray in an atomizing tower. The invention provides for the use of a sliding nozzle assembly system in which replacement nozzles can be changed on the fly during production.
B05B 7/06 - Spray pistols; Apparatus for discharge with one outlet orifice surrounding another approximately in the same plane
B05B 15/65 - Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
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
The present invention provides for a method to quickly change a nozzle assembly suitable for use in a liquid metal atomizing process in which a liquid metal held in a liquid metal reservoir and exiting said metal reservoir through a reservoir opening is atomized by an atomizing fluid to form a metallic spray in an atomizing tower. The invention provides for the use of a sliding nozzle assembly system in which replacement nozzles can be changed on the fly during production. The object of the present invention is achieved by providing a nozzle assembly designed to be used in conjunction with a support structure. Said nozzle assembly and support structure being designed for use in a nozzle change equipment according.
B05B 15/65 - Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
B05B 7/06 - Spray pistols; Apparatus for discharge with one outlet orifice surrounding another approximately in the same plane
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
A method for manufacturing direct reduced iron wherein iron ore is reduced in a direct reduction furnace by a reducing gas, the reducing gas exiting the furnace through the top as a top reduction gas. The top reduction gas is captured and at least partly subjected to a C02 recovery step during which it is divided into two streams, a C02-rich stream and a C02-poor stream. The C02-rich stream is subjected to an alkanol production step to produce an alkanol product.
A method of operating a network of plants comprising a blast furnace, a direct reduction furnace, a CO2 conversion unit wherein blast furnace top gas is subjected to a CO2 conversion step to produce a liquid carbon product which is injected into the direct reduction furnace.
C21B 13/00 - Making spongy iron or liquid steel, by direct processes
C21B 13/02 - Making spongy iron or liquid steel, by direct processes in shaft furnaces
B01D 53/14 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
A method for manufacturing direct reduced iron wherein oxidized iron is reduced in a direct reduction furnace by a reducing gas, said direct reduction furnace comprising a reduction zone, a transition zone and a cooling zone, a carbon-bearing liquid being injected below the reduction zone.
C21B 13/00 - Making spongy iron or liquid steel, by direct processes
C21B 13/02 - Making spongy iron or liquid steel, by direct processes in shaft furnaces
C07C 1/12 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon dioxide with hydrogen
30.
METHOD FOR MANUFACTURING DIRECT REDUCED IRON AND DRI MANUFACTURING EQUIPMENT
A method for manufacturing Direct Reduced Iron wherein iron ore is reduced in a DRI shaft by a reducing gas comprising hydrogen obtained by thermal cracking of methane inside a plasma torch, the reducing gas further comprising top gas coming from the DRI shaft and a DRI manufacturing equipment including a DRI shaft (1) and a plasma torch (40), wherein the plasma torch is connected on one side to a methane supply (41) and, on the other side, to the DRI shaft (1), the DRI shaft being provided with a recycling loop allowing to inject its top gas back in the DRI shaft.
A method for manufacturing Direct Reduced Iron wherein iron ore is reduced in a DRI shaft by a reducing gas comprising hydrogen obtained by extraction from coke oven gas through a hydrogen separation unit, the remaining part of such coke oven gas being at least partly injected in the transition section of said DRI shaft to set the carbon amount of said Direct Reduced Iron from 0.5 to 3 wt.% and a DRI manufacturing equipment including a DRI shaft (1) and a hydrogen separation unit (5), wherein said hydrogen separation unit (5) inlet is connected to a coke oven gas supply (6) and includes a first outlet connected to the DRI shaft to inject hydrogen separated from said coke oven gas and a second outlet connected to the transition section of said DRI shaft (1) to inject at least part of the remaining part of such coke oven gas.
A method for manufacturing direct reduced iron wherein oxidized iron is reduced in a direct reduction furnace by a reducing gas, said oxidized iron being first mixed with biochar to form a solid compound and said solid compound is charged into said direct reduction furnace.
C21B 13/00 - Making spongy iron or liquid steel, by direct processes
C07C 1/12 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon dioxide with hydrogen
A steel sheet made of a steel having a composition comprising, C : 0.3 - 0.4 %, Mn : 0.5 - 1.0 %, Si : 0.4 - 0.8 %, Cr : 0.1 - 1.0 %, Mo : 0.1 - 0.5 %, Nb : 0.01 - 0.1 %, Al : 0.01 - 0.1 %, Ti: 0.008 - 0.03 %, B: 0.0005 - 0.003 %, P = 0.020 %, Ca = 0.001 %, S = 0.004 %, N = 0.005 % and comprising optionally Ni < 0.5%, having a microstructure comprising, in surface fraction, from 60% to 95% of ferrite, the rest being martensite-austenite islands, pearlite or bainite, and comprising a bulk and a skin layer occupying the outermost 10% of the thickness on either sides of the bulk, said skin layer having a skin layer inclusion population wherein the cumulated surface fraction of oxides, MnS and TiNbCN is equal to or below 75*10-6.
A steel sheet made of a steel having a composition comprising, C : 0.3 - 0.4 %, Mn : 0.5 - 1.0 %, Si : 0.4 - 0.8 %, Cr : 0.1 - 1.0 %, Mo : 0.1 - 0.5 %, Nb : 0.01 - 0.1 %, Al : 0.01 - 0.1 %, Ti: 0.008 - 0.03 %, B: 0.0005 - 0.003 %, P = 0.020 %, Ca = 0.001 %, S = 0.004 %, N = 0.005 % and comprising optionally Ni < 0.5%, having a microstructure comprising, in surface fraction, from 60% to 95% of ferrite, the rest being martensite-austenite islands, pearlite or bainite, and comprising a bulk and a skin layer occupying the outermost 10% of the thickness on either sides of the bulk, said skin layer having a skin layer inclusion population wherein the surface fraction of oxides is equal to or below 60*10-6.
The invention relates to an installation for the production of metal powders comprising: - a gas atomizer comprising an atomization chamber having a top and a bottom, an atomization nozzle, positioned at the top of the chamber, through which liquid metal can flow, a gas sprayer, adjacent to the nozzle, through which gas can be jetted on the liquid metal and an opening at the bottom of the atomization chamber for discharging the metal powder, - a double pipe heat exchanger comprising an inner pipe and an outer pipe, the two pipes being concentric, the inner pipe being connected to the opening at the bottom of the atomization chamber and the outer pipe being connected to the gas sprayer of the atomizer. The invention also relates to the corresponding process.
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
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
The invention relates to a process for manufacturing metal pow- ders, comprising (i) feeding a chamber of a gas atomizer with molten metal, (ii) atomizing the molten metal by injection of gas so as to form metal particles, (iii) cooling the metal particles in the lower section of the chamber by injecting gas from the bottom of the chamber so as to fonn a bubbling fluidized bed of metal particles. The invention also relates to the gas atomizer thereof.
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
The invention relates to a process for manufacturing metal powders comprising (i) discharging metal particles from a chamber of a gas atomizer in a conveyor, (ii) simultaneously cooling and transporting the metal particles in the form of a fluidized bed formed in the conveyor. The invention also relates to the installation thereof.
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
B65G 53/16 - Gas pressure systems operating with fluidisation of the materials
The invention relates to a process for the production of steel powders comprising the steps of: providing molten iron from a blast furnace, refining the molten iron in a converter to form molten steel, refining the molten steel in a vacuum arc degasser to obtain a refined molten steel comprising from 20 to less than 600 ppm C, from 15 to less than 120 ppm S, up to 125 ppm P, up to 80 ppm N and up to 30 ppm O, pouring in a plurality of induction furnaces, adding at least one ferroalloy, pouring the molten steel of each induction furnace in a dedicated reservoir connected to at least one gas atomizer, feeding the at least one gas atomizer of each reservoir in molten steel from each reservoir under pressure and gas atomizing said molten steel to form the steel powder at the desired composition.
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
A heat treated cold rolled steel sheet comprising of the following elements,0.1% ? C ? 0.2 %; 1.2 % ? Mn ? 2.2 %; 0.05% ? Si ? 0.6 %; 0.001% ? Al ? 0.1 %; 0.01% ? Cr ? 0.5 %;0% ? S ? 0.09%; 0% ? P ? 0.09%; 0% ? N ? 0.09%; 0% ? Mo ? 0.5%; 0% ? Ti ? 0.1%; 0% ? Nb ? 0.1%; 0% ? V? 0.1%; 0% ? Ni ? 1%; 0% ? Cu ? 1%; 0% ? Ca ? 0.005%; 0% ? B ? 0.05%; the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel comprising, by area percentage, 60% to 85% of tempered martensite, a cumulated amount of ferrite and bainite of 15 % to 38%, an optional amount of residual austenite of 0% to 5% and an optional amount of fresh martensite of 0 to 5%.
The invention relates to a process for the production of steel powders comprising the steps of: providing molten iron from a blast furnace, refining the molten iron in a converter to form molten steel comprising up to 600 ppm C, up to 120 ppm S, up to 125 ppm P, up to 50 ppm N and up to 1200 ppm O, pouring the molten steel in a plurality of induction furnaces, adding, in each of the plurality of induction furnaces, at least one ferroalloy to adjust the steel composition, pouring the molten steel at the desired composition of each induction furnace in a dedicated reservoir connected to at least one gas atomizer, feeding the at least one gas atomizer of each reservoir in molten steel from each reservoir under pressure and gas atomizing said molten steel to form the steel powder at the desired composition.
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
The invention relates to a floor deck structure (1) comprising: - a profiled metallic sheet (2) comprising at least a first, a second and a third upper portion (7) separated by a first and a second longitudinal groove (3) comprising a base (5), a first lateral wall (13) linking the base (5) to one of the upper portions and a second lateral wall (14) linking the base (5) to an adjacent upper portion (7); - a first and a second rebar truss (10) each extending longitudinally in and/or above, respectively, the first and second longitudinal groove (3) and - a plurality of connectors (9a) fastening the first and the second rebar trusses (10) to the profiled metallic sheet (2).
E04B 5/10 - Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
E04B 5/40 - Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form slabs
E04C 5/16 - Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
E04C 5/18 - Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of metal or substantially of metal
E04C 5/20 - Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of other material than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
The invention relates to a panel extending along a longitudinal axis (X) and comprising a profiled metallic tray (15), a profiled metallic sheet (1) and an insulation material (16) sandwiched between the profiled metallic tray (15) and the profiled metallic sheet (1), said profiled metallic sheet (1) comprising in cross-section perpendicular to the longitudinal axis (X) at least a main part (3) substantially lying down in a plane P and a lateral flange (7) extending inwards from an extremity of the main part (3) and comprising a U-shaped bend forming a protrusion (8) extending outwards and delimited by two lateral walls (9, 10) and a free end (11), wherein the panel (2) comprises a longitudinal seal (12) located in the protrusion (8) away from its free end (11) and compressed between the lateral walls (9, 10) of the protrusion (8), thus delimiting an unfillable volume (V) in said protrusion (8).
E04C 2/292 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups at least one of the materials being insulating composed of insulating material and sheet metal
E04C 2/20 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of foamed products of plastics
43.
SYSTEM AND METHOD FOR DETERMINING THE CHEMICAL COMPOSITION OF LIQUID METALLURGICAL PRODUCTS
A device for determining the chemical composition of a liquid metallurgical product emitting electromagnetic radiations. The device comprising a collection probe configured to acquire the electromagnetic radiations emitted by the metallurgical product in a predetermined wavelength range ??, spectroscopic means connected to the collection probe and configured to generate a spectral signal of the acquired electromagnetic radiations and processing means including a database of reference radiances. The invention is also related to a method using said device.
G01N 21/71 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
A method to manufacture a global tonnage of steel products in at least two steelmaking units wherein expected level emissions are calculated and compared with pre-defined targets.
A method of manufacturing a steel product into at least two different steelmaking units wherein an expected level of CO2 emissions for the manufacturing of said product in each respective steelmaking unit is calculated.
A method to manufacture a steel product in a steelmaking plant comprising several different tools, the method including the definition of at least two manufacturing routes using different tools and the calculation of the expected level of CO2 emissions associated to each of this defined manufacturing routes.
A first subject of the present invention consists of an antiviral formulation comprising metallic copper particles in an unoxidized form and having a median particle diameter inferior or equal to 200nm, graphene oxide or reduced graphene oxide, and a bonding matrix material. A second subject of the invention consists of an antiviral filtering material comprising 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 200nm, 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 consists of an antiviral face mask comprising a layer of textile coated with the antiviral formulation.
The invention deals with a coated steel sheet and press hardened steel part having a composition comprising, by weight percent: C 0.15-0.25%, 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 comprises a bulk having a microstructure comprising, 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%.
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
A method of production of a coated steel substrate comprising 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 100g/l to 500g/l of NiSO4 and 1 g/l to 15g/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.
The invention relates to a tin coated steel sheet 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 consisting of Fe and unavoidable impurities and said steel sheet - a ferritic microstructure with a mean grain size from 5 to 15 µm.
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
C21D 9/48 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
Trimming device (7) for metallic sheets comprising: - an upper knife (8), comprising a central circular face (9) having a diameter D1 and a thickness T1, mounted on an upper shaft (10); - a lower knife (11), comprising a central circular face (12) having a diameter D2 and a thickness T2, mounted on a lower shaft (13), 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 (10) or lower (13) shaft is able to be moved vertically; - a first distance sensor (14), able to measure a vertical distance (V1) to the upper end of said upper knife; - a second distance sensor (15), able to measure a vertical distance (V2) to the lower end of said lower knife; and - a computing means (16) able to compute said overlap.
The invention relates to a method for the manufacture of a steel sheet, in a device comprising a pre-heating section, a heating section having a maximal heating rate and a soaking section comprising 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.
C21D 1/76 - Adjusting the composition of the atmosphere
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
C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
C21D 9/48 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
F27B 9/28 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
The invention relates to a method for estimating the temperature of a steel product comprising 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.
The invention deals with a coated steel sheet and press hardened steel part having a composition comprising, 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 comprises a bulk having a microstructure comprising, 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%.
A method of casting a steel semi-product wherein a liquid steel is poured from a ladle to a tundish through a shroud comprising 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 cold rolled and heat treated steel sheet having a composition comprising of the following elements 0.1%=Carbon=0.5%, 1%=Manganese=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% =Copper=2%, 0.01%=Nickel=3%, 0.0001 % = Calcium = 0.005 %, 0 % = Vanadium = 0.1 %, 0 % = Boron = 0.003 %, 0 % = Cerium= 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 said rolled steel sheet comprises 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%.
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.
A steel for rail comprising of 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 of said steel comprising, by area percentage, 2% to 10% of Proeutectoid Ferrite, the balance being made of Pearlite wherein the pearlite having interlamellar spacing from 100nm to 250nm.
The invention relates to a method for the manufacture of a self-standing graphene oxide or reduced graphene oxide film having a thickness between 0.4 and 4.0µm, comprising the successive steps of A) preparing an aqueous dispersion comprising 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 3.5mm, 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.
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, comprising the following steps: -Op1/ positioning the mother blank on a cutting table, said cutting table comprising 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.
The invention relates to a method for manufacturing a steel sheet provided with a coating comprising from 0.80 to 1.40wt.% of Al, from 0.80 to 1.40wt.% 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 comprising the part.
Rear underfloor structure (2) for a motor vehicle (1) comprising a first and a second side member (4) and at least one cross member (5) linking said first and second side members (4), wherein said rear underfloor structure (2) is made by stamping a single tailor welded blank (26) comprising at least two sub-blanks.
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, comprising the steps of: 1. Measuring at least two radiation intensities at different wavelengths, in a range from 1 to 5 µm, emitted by said heated steel strip, 2. Estimating the temperature of said heated steel strip, TESTIMATED, based on - said 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, 3. Estimating the emissivity coefficient of said heated steel strip, eESTIMATED, using at least one of said measured radiation intensities and the estimated temperature, TESTIMATED, 4. Estimating the oxide thickness, OxESTIMATED, of said heated steel strip using said estimated emissivity, eESTIMATED.
A lance (1) for blowing oxygen onto a bath of molten steel comprising a tip (15) provided with first oxygen ejection means (16) and a distributor (17) provided with second ejection means (18).
A cold rolled and coated steel sheet, the steel comprising 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 - 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
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
A steel for leaf spring comprising 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 said steel comprising, 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%.
Side structure (1) for a motor vehicle (3) comprising 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 said 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 said inner and outer frames (11,13) are assembled to form a hollow volume (7) between them.
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.
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 comprises 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 device to inject a reducing gas into a shaft furnace comprising 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 wherein reducing gas is circulating. The internal casing has an opening matching the gas injection outlet of the front face of the external casing. The front face of the external casing comprises and upper and a lower part and the gas injection outlet is in the lower part and inwards from the upper part.
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 comprises an external wall, an internal wall in contact with matters charged into the blast furnace, said internal wall comprising 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 device to inject a reducing gas into a shaft furnace comprising 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.
This patent relates to a cooling method of a travelling coated steel strip, exiting a hot-dip coating bath, comprising the steps of: A) sucking a gas into a cooling device, B) filtering said sucked gas by means of 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, said sucked and filtered gas onto said coated steel strip.
A steel for forging mechanical parts comprising 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 said steel having microstructure comprising 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%.
Rear lower control arm (5) for a motor vehicle comprising a top part (5t) and a bottom part (5b) defining together a hollow volume (5h), said top and bottom parts (5t, 5b) each comprising respectively a top and bottom first hole (17t, 17b) and a top and bottom second hole (19t, 19b), wherein said top and bottom parts (5t, 5b) are joined together by securing together at least part of said top and bottom horizontal surface outer peripheries (5tho, 5bho), at least part of said top and bottom first hole side walls outer peripheries (17tso, 17bso), at least part of said top and bottom second hole side walls outer peripheries (19tso, 19bso).
The invention deals with a cold rolled and annealed steel sheet, made of a steel having a composition comprising, by weight percent: C: 0.03 - 0.18 % Mn: 6.0 11.0 % Al: 0.2 3% Mo: 0.05 - 0.5 % B: 0.0005 0.005% S = 0.010 % P = 0.020 % N = 0.008 % and comprising optionally one or more of the following elements, in weight percentage: 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 comprising, in surface fraction, - from 30% to 55% of retained austenite, - from 45% to 70% of ferrite, - less than 5% of fresh martensite - a carbon [C]A and manganese [Mn]A content in austenite, expressed in weight percent, satisfying [C]A* [Mn]A / ((0,1+C% )*(Mn%+2)) =1.10 - and an inhomogeneous repartition of manganese characterized by a manganese distribution with a slope above or equal to -30.
The invention deals with a cold rolled and annealed steel sheet, made of a steel having a composition comprising, by weight percent: C: 0.03 - 0.18 % Mn: 6.0 11.0 % Al: 0.2 3% Mo: 0.05 - 0.5 % B: 0.0005 0.005% S = 0.010 % P = 0.020 % N = 0.008 % and comprising optionally one or more of the following elements, in weight percentage: 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 comprising, in surface fraction, - from 25% to 54% of retained austenite, - from 46% to 75% of ferrite, - less than 8% of fresh martensite, - a carbon [C]A and manganese [Mn]A content in austenite, expressed in weight percent, wherein [C]A* v[Mn]A is from 0.48 tp 1.8, - and an inhomogeneous repartition of manganese characterized by a manganese distribution with a slope above or equal to -50.
The invention deals with a cold rolled and annealed steel sheet, made of a steel having a composition comprising, by weight percent: C: 0.03 - 0.18 % Mn: 6.0 11.0 % Al: 0.2 3% Mo: 0.05 - 0.5 % B: 0.0005 0.005% S = 0.010 % P = 0.020 % N = 0.008 % and comprising optionally one or more of the following elements, in weight percentage: 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 comprising, in surface fraction, - from 25% to 55% of retained austenite, - from 45% to 75% of ferrite, - less than 5% of fresh martensite, - a carbon [C]A and manganese [Mn]A content in austenite, expressed in weight percent, such that the ratio ([C]A x [Mn] A) / (C% x Mn%) is from 19.0 to 41.0 wt%, C% and Mn% being the nominal values in carbon and manganese in weight % and - a carbides density below 3x106/mm and - an inhomogeneous repartition of manganese characterized by a manganese distribution with a slope above or equal to -30.
The invention deals with a hot rolled and heat-treated steel sheet, made of a steel having a composition comprising, by weight percent: C: 0.03 - 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 comprising 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 comprising, in surface fraction, - from 10% to 60% of retained austenite, - from 40% to 90% of ferrite, - less than 5% of martensite, - carbides below 0.8%, - and an inhomogeneous repartition of manganese, characterized by a manganese distribution with a slope above or equal to -40.
The invention deals with a cold rolled, annealed and tempered steel sheet, made of a steel having a composition comprising, by weight percent: C: 0.03 - 0.18 % Mn: 6.0 11.0 % Al: < 3% Mo: 0.05 - 0.5 % B: 0.0005 0.005% S = 0.010 % P = 0.020 % N = 0.008 % and comprising optionally one or more of the following elements, in weight percentage: 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 comprising, in surface fraction, - from 0% to 30% of ferrite, such ferrite having a grain size below 1.0 µm, - from 3% to 30% of retained austenite, - from 40 to 95% of tempered martensite - less than 5% of fresh martensite, - a carbon [C]A and manganese [Mn]A content in austenite, expressed in weight percent, such that the ratio ([C]A x [Mn]A) / (C% x Mn%) is below 7.80, C% and Mn% being the nominal values in carbon and manganese in weight %.
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
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
C21D 9/48 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
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 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
82.
COLD ROLLED, ANNEALED AND PARTITIONED STEEL SHEET AND METHOD OF MANUFACTURING THE SAME
The invention deals with a cold rolled, annealed and partitioned steel sheet, made of a steel having a composition comprising, 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 comprising 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 comprising, 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]A x [Mn]A) / (C% x Mn%) is below 18.0, C% and Mn% being the nominal values in carbon and manganese in weight %.
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
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
C21D 9/48 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
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 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
83.
COLD ROLLED AND ANNEALED STEEL SHEET AND METHOD OF MANUFACTURING THE SAME
The invention deals with a cold rolled and annealed steel sheet, made of a steel having a composition comprising, by weight percent: C: 0.03 - 0.18 % Mn: 6.0 11.0 % Al: 0.2 3% Mo: 0.05 - 0.5 % B: 0.0005 0.005% S = 0.010 % P = 0.020 % N = 0.008 % and comprising optionally one or more of the following elements, in weight percentage: 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 comprising, in surface fraction, - from 25% to 55% of retained austenite, - from 5% to 50% of ferrite, - from 5 to 70% of partitioned martensite - less than 5% of fresh martensite, - a carbon [C]A and manganese [Mn]A content in austenite, expressed in weight percent, such that the ratio ([C]A x [Mn]A) / (C% x Mn%) is from 3.0 to 8.0, C% and Mn% being the nominal values in carbon and manganese in weight % and - an inhomogeneous repartition of manganese characterized by a manganese distribution with a slope above or equal to -40.
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
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
C21D 9/48 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
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 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
The invention deals with a cold rolled and double annealed steel sheet, made of a steel having a composition comprising, 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 comprising 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. said steel sheet having a microstructure comprising. 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]A x [Mn]A) / (C% x 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 4x106/mm .
A method of casting a steel semi-product from a liquid steel, the steel semi-product having a targeted composition in titanium of at least 3,5% in weight.
The invention relates to a cold rolled and heat-treated steel sheet, the steel comprising, in weight percentage, 0.17% = carbon = 0.25%, 2% = manganese = 3%, 0.9% = silicon = 2%, 0% = aluminum =0.09%, 0.01%= molybdenum = 0.2%, 0%= phosphorus = 0.02%, 0%= sulfur = 0.03%, 0% = nitrogen = 0.09%, and optionally one or more of the following elements 0%= chromium = 0.3%, 0%= niobium = 0.06%, 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 50% to 80% of Bainite, 10% to 30% of residual austenite, 15% to 50% of Partitioned martensite, 0% to 10% of ferrite and 0% to 5% fresh martensite in area fractions, and a ferrite-enriched layer extending up to 50 microns from both surfaces of said steel sheet, such ferrite-enriched layer having a mean ferrite content from 55% to 80% in area fraction.
Reinforced rocker assembly having a closed section reinforcement located in the hollow volume formed between the rocker components, wherein the reinforcement is assembled to a rocker component in the transition zones between an upper horizontal wall and an upper flange of said rocker component and in the transition zones between a lower horizontal wall and a lower flange of said rocker component and wherein in said transition zones, the angles a and ß formed between the flange and the branch of the reinforcement extending outwards of the rocker component are comprised between 90° and 180°.
B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
A method to stir liquid metal contained into a steelmaking vessel, said liquid metal being surrounded by a slag layer, the method comprising injection of a gas, optionally containing a powder, by at least two injection means located at at least two different injection points along the depth of the liquid metal, the first injection point being located in the bottom half of the liquid metal and the second injection point being located in the vicinity below the interface between liquid metal and slag layer, the gas injection being performed while rotating injection means along the vertical axis of the vessel. Associated device.
The present invention relates to a manufacturing method of a steel strip, a steel strip with controlled decarburized depth, a spot welded joint and the use of said steel strip or said spot welded joint. This invention is particularly well suited for the automotive industry due to the improvement of the Liquid Metal Embrittlement (LME) resistance along with target mechanical properties.
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
91.
STRUCTURAL NODE FOR A MOTOR VEHICLE FRONT LOWER LOAD PATH, AND PROCESS FOR ASSEMBLING SAID STRUCTURAL NODE.
The invention relates to a structural components node (9) comprising 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, said structural components node (9) can further optionally comprise connections with a hanger (10) and a front transverse member (11). By applying the invention, it is possible to reduce the amount of welding operations needed to assemble said 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. Finally, the invention relates to a process of assembling such a structural components node (9).
B62D 21/11 - Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension
B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
The invention relates to a sol composition for producing dielectric layers on a metallic substrate comprising 10 to 30%, by weight of the sol composition, of a precursor comprising a trialkoxysilane, 10 to 40%, by weight of the sol composition, of titanium dioxide particles whose median size is below 500 nm, 4.5 to 36%, by weight of the sol composition, of silica particles whose particle size distribution D90 is below 100 nm, 5 to 15%, by weight of the sol composition, of a solvent capable of making the precursor miscible in water, 0.1 to 2%, by weight of the sol composition, of an acidic catalyst, the remainder being water.
C23C 18/12 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
H01L 31/0392 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their crystalline structure or particular orientation of the crystalline planes including thin films deposited on metallic or insulating substrates
93.
HIGH STRENGTH COLD ROLLED AND GALVANNEALED STEEL SHEET AND MANUFACTURING PROCESS THEREOF
The invention deals with a cold rolled and galvannealed steel sheet having a composition comprising, by weight percent: C 0.15-0.25%, Mn 2.4-3.5%, Si 0.30-0.90%, Cr 0.30-0.70%, Mo 0.05-0.35%, Al 0.001-0.09%, Ti 0.01-0.06, B 0.0010-0.0040%, Nb 0.01 -0.05%, P=0.020%, S=0.010% and N=0.008%, the remainder of the composition being iron and unavoidable impurities resulting from the smelting, and having a microstructure consisting of, in surface fraction, between 80% and 90% of martensite, the balance being ferrite and bainite.
The invention relates to a carrier device comprising a reinforcement arrangement (9) comprising: at least two adjacent reinforcement hollow portions (24, 25) both being traversed by the side wall (3) of the carrier device (2) and each made of an inner reinforcement hollow section (26, 27) of the inner reinforcement piece (14) and an outer reinforcement hollow (28, 29) section of the outer reinforcement piece (19), both reinforcement hollow sections being at least partially facing each other, and a longitudinal reinforcement fastening portion (30) located between the adjacent reinforcement hollow portions (24, 25), secured to the side wall (3), and made of an inner reinforcement fastening section (31) of the inner reinforcement piece (14) and an outer reinforcement fastening section (32) of the outer reinforcement piece (19), both reinforcement fastening sections (31, 32) being at least partially facing each other.
B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
95.
PRE-COATED STEEL SHEET COMPRISING AN ADDITIONAL COATING FOR INCREASING THE MECHANICAL STRENGTH OF THE WELD METAL ZONE OF A WELDED STEEL PART PREPARED FROM SAID PRE-COATED SHEET
A pre-coated steel sheet is presented wherein at least a region at the periphery of at least one of the opposite faces of said pre-coated sheet is coated with an additional coating selected for increasing the vapor pressure between the pre-coating and said additional coating during a laser welding method up to a critical pressure at which the pre-coating is ejected away from the weld. In some implementations, the vaporization temperature of the additional coating may be greater than the vaporization temperature of the pre- coating and the additional coating comprises gammagene elements like carbon and/or nickel. A steel part is also presented obtained by laser welding, preferably butt laser welding, of at least a first and second pre-coated steel sheet as above indicated.
B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
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
96.
PROTECTIVE ELEMENT FOR A BATTERY PACK OF A HYBRID OR ELECTRIC VEHICLE AND PROCESS FOR THE ASSEMBLING OF A REINFORCED BATTERY PACK
The invention relates to a protective element (1) named shield element for a battery pack of an electric or hybrid vehicle, wherein said protective element (1) comprises securing means (2) configured to removably secure the shield element (1) both to the battery pack and to a body (11) of the vehicle.
B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
97.
REINFORCED BATTERY PACK OF AN ELECTRIC OR HYBRID VEHICLE AND PROCESS FOR ASSEMBLING SAID BATTERY PACK
The invention relates to a reinforcement frame (1) for a battery pack (2) of an electric or hybrid vehicle (37), said battery pack comprising a plurality of battery cells lying on and secured to a shield element, said reinforcement frame comprising at least: - a reinforcement frame fastening portion (3) provided to be secured to both the battery pack and the body of the vehicle, and - a reinforcement frame hollow portion (4) provided to surround at least the battery cells.
H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
B62D 21/11 - Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension
The invention relates to a metal powder for additive manufacturing having a composition comprising the following elements, expressed in content by weight: 0.01 % = C = 0.2%, 4.6% = Ti = 10%, (0.45 xTi) - 0.22% = B = (0.45 xTi) + 0.70%, S = 0.03%, P = 0.04%, N = 0.05%, O = 0.05% and optionally containing: Si = 1.5%, Mn = 3%, Al = 1.5%, Ni = 1 %, Mo = 1 %, Cr = 3%, Cu = 1 %, Nb = 0.1 %, V = 0.5% and comprising eutectic precipitates of TiB2 and Fe2B, the balance being Fe and unavoidable impurities resulting from the elaboration, the volume percentage of TiB2 being equal or more than 10% and the mean bulk density of the powder being 7.50 g/cm3 or less. The invention also related to its manufacturing method by atomization.
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B33Y 80/00 - Products made by additive manufacturing
B22F 10/00 - Additive manufacturing of workpieces or articles from metallic 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
C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
100.
PROCESS FOR THE ADDITIVE MANUFACTURING OF MARAGING STEELS
The invention relates to a process for manufacturing an additively-manufactured part from a metal powder having a composition comprising the following elements, expressed in content by weight: 6% = Ni = 14%, 5% = Cr = 10%, 0.5% = Si = 2.5%, 0.5% = Ti = 2%, C = 0.04% and optionally containing 0.5% = Cu = 2%, the balance being Fe and unavoidable impurities resulting from the elaboration, the metal powder having a microstructure including in area fraction more than 98% of a body-centered cubic crystalline phase, the process comprising a step during which at least a part of the metal powder is melted in an atmosphere substantially composed of an inert gas other than Argon or of a combination of inert gases other than Argon.
patents
