Arcelormittal Investigacion Y Desarrollo SL Patent applications |
Patent application number | Title | Published |
20160017452 | PROCESS FOR MANUFACTURING PRESS-HARDENED COATED STEEL PARTS AND PRECOATED SHEETS ALLOWING THESE PARTS TO BE MANUFACTURED - This invention relates to a cold-rolled sheet that is annealed and pre-coated for the fabrication of press hardened parts, composed of a steel substrate for heat treatment with a carbon content C | 01-21-2016 |
20160005575 | PLASMA SOURCE - The invention relates to a plasma source ( | 01-07-2016 |
20150184352 | Method and Tool for forming a Seal in a Block Chamber of a Sheet Pile - A method and a tool ( | 07-02-2015 |
20150155085 | METHOD OF PRODUCTION OF GRAIN-ORIENTED SILICON STEEL SHEET GRAIN ORIENTED ELECTRICAL STEEL SHEET AND USE THEREOF - The present invention is directed at a method of production gain oriented Fe—Si steel sheet presenting an induction value at 800 A/m above 1.870 Tesla and a core power loss lower than 1.3 W/kg at a specific magnetic induction of 1.7 Tesla (T). The steel chemical composition comprises, in weight percentage: 2.8≦Si≦4, 0.20≦Cu≦0.6, 0.05≦Mn≦0.4, 0.001≦Al≦0.04, 0.025≦C≦0.05, 0.005≦N≦0.02, 0.005≦Sn≦0.03, S≦0.015 and optionally Ti, Nb, V or B in a cumulated amount below 0.02, the following relationships being respected: Mn/Sn≦40, 2.0≦C/N≦5.0, Al/N≦1.20, and the balance being Fe and other inevitable impurities. | 06-04-2015 |
20150147589 | ROLLED STEEL THAT HARDENS BY MEANS OF PRECIPITATION AFTER HOT-FORMING AND/OR QUENCHING WITH A TOOL HAVING VERY HIGH STRENGTH AND DUCTILITY, AND METHOD FOR MANUFACTURING SAME - A rolled steel sheet or blank is provided, the composition of which comprises the elements listed below in per cent by weight: C≦0.1%; 0.5%≦Mn≦7%; 0.5%≦Si≦3.5%; 0.5%05-28-2015 | |
20150144291 | CONTINUOUS CASTING EQUIPMENT - Continuous casting equipment for a flow of liquid metal from a tundish into a mould is provided. The equipment includes a vertical duct disposed upstream of the mould with respect to the direction of travel of the liquid metal. The duct includes from upstream to downstream a refractory ring, a copper tube with an internal diameter D and a submerged entry nozzle. A dome is disposed inside the refractory ring and includes a sloped upper part, the upper part is defined so as to deflect the liquid metal coming from the tundish towards the inner walls of the vertical duct. The diameter D of the copper tube ranges between a minimum diameter equal to Q/3.75 and a maximum diameter equal to Q/1.25, where Q is the nominal liquid metal flow rate of the equipment and is between 200 and 800 kg/min and D is the diameter expressed in mm. | 05-28-2015 |
20150093594 | Solution for Reducing the Blackening or Tarnishing of a Metal Sheet and Metal Sheet - The present invention provides an aqueous treatment solution containing sulfate ions SO | 04-02-2015 |
20150052961 | Method for Hot Rolling Z-Sections Sheet Piles - A method for rolling a Z-section sheet pile comprises rolling a curved preform of a web ( | 02-26-2015 |
20150030382 | HOT-FORMED PREVIOUSLY WELDED STEEL PART WITH VERY HIGH MECHANICAL RESISTANCE AND PRODUCTION METHOD - The invention relates principally to a welded steel part with a very high mechanical strength characteristics obtained by heating followed by hot forming, then cooling of at least one welded blank obtained by butt welding of at least one first and one second sheet consisting at least in part of a steel substrate and a pre-coating which is constituted by an intermetallic alloy layer in contact with the steel substrate, topped by a metal alloy layer of aluminum or aluminum-based alloy. | 01-29-2015 |
20150013409 | Steel Sheet including a Multilayer Coating and Methods - A steel sheet is provided. The steel sheet includes a multilayer coating including at least one zinc-based layer being 0.1% to 20% magnesium by weight which is covered by a fine temporary protective layer of 5 to 100 nm. The fine temporary protective layer is composed of metal or metal oxide selected from the group consisting of aluminum, chromium, aluminum oxides AlOx, with x being strictly between 0.01 and 1.5 and chromium oxides CrOy, with y being strictly between 0.01 and 1.5. The at least one zinc-based layer is not alloyed with the temporary protective layer. Manufacturing methods for a sheet and part are also provided. | 01-15-2015 |
20140283467 | PANEL, ASSEMBLY OF PANELS AND ASSOCIATED ROOFING - The present invention provides a panel having a profile. The panel includes a first longitudinal edge including in succession a first longitudinal rib, a flange, and a second longitudinal rib. Each longitudinal rib includes an upper central part and two lateral wings. The panel also includes a central part and a second longitudinal edge including in succession a first lateral portion, a protruding part, and a second lateral portion. The lateral portions have a configuration permitting them to at least partially overlap the upper central parts of the first and second longitudinal ribs. The protruding part is capable of receiving a fastener. The present invention also provides an assembly of panels marginally overlapping, a roofing and a kit for fabrication of roofing. | 09-25-2014 |
20140246130 | METHOD OF MAKING A HYPEREUTECTOID, HEAD HARDENED STEEL RAIL - A method of making a hypereutectoid, head-hardened steel rail is provided that includes a step of head hardening a steel rail having a composition containing 0.86-1.00 wt % carbon, 0.40-0.75 wt % manganese, 0.40-1.00 wt % silicon, 0.05-0.15 wt % vanadium, 0.015-0.030 wt % titanium, and sufficient nitrogen to react with the titanium to form titanium nitride. Head hardening is conducted at a cooling rate that, if plotted on a graph with xy-coordinates with the x-axis representing cooling time in seconds, and the y-axis representing temperature in Celsius of the surface of the head of the steel rail, is maintained in a region between an upper cooling rate boundary plot defined by an upper line connecting xy-coordinates (0 s, 775° C.), (20 s, 670° C.), and (110 s, 550° C.) and a lower cooling rate boundary plot defined by a lower line connecting xy-coordinates (0 s, 750° C.), (20 s, 610° C.), and (110 s, 500° C.). | 09-04-2014 |
20140232105 | NICKEL-BASE RADIANT TUBE AND METHOD FOR MAKING THE SAME - Nickel-base radiant tube includes straight and curved elbow tube sections. The straight tube section has constant inner and outer radii. The elbow tube section has a constant inner radius and variable outer radius. The inner diameter of the elbow tube section is equal the inner radius of the straight tube section. Mating end portion of the elbow tube section has an outer radius equal to the outer radius of the straight tube section. Method for making the radiant tube comprises the steps of positioning a mating end portion of the straight tube section adjacent to and aligned with the mating end portion of the elbow tube section so that end faces of the straight and elbow tube sections face each other to define a circumferentially extending weld groove, and butt welding the mating end portions of the straight and elbow tube sections together at the weld groove. | 08-21-2014 |
20140174299 | APPARATUS AND METHOD FOR TREATING EXHAUST GAS - Presented is a method and apparatus for treating an exhaust gas. A series of filters and conditioning units are used to separate and extract various substances from the exhaust gas, typically originating from an industrial process. In an exemplary embodiment, a cyclone filter, a ceramic filter, a baghouse filter, and a pair of gas conditioners are used to initially separate and extract iron-rich dust from an exhaust gas and then extract zinc from the gas. | 06-26-2014 |
20140127406 | AUTOMATIC SUPPLY DEVICE FOR AN INDUSTRIAL METAL VAPOR GENERATOR - The present invention relates to a facility for the continuous vacuum deposition of a metal coating on a substrate in motion, comprising a vacuum deposition enclosure ( | 05-08-2014 |
20140120371 | COLD-ROLLED STEEL PLATE COATED WITH ZINC OR A ZINC ALLOY, METHOD FOR MANUFACTURING SAME, AND USE OF SUCH A STEEL PLATE - The present invention provides a “TRIP effect” cold-rolled and annealed steel sheet which has improved formability and weldability, strength between 780 and 900 MPa and elongation at fracture greater than 19%, the composition of which includes the following elements in percentages expressed by weight: 0.17%≦C≦0.25%, 1.5%≦Mn≦2%, 0.50%≦Si≦1%, 0.50%≦Al≦1.2%, whereby Si+Al≧1.30%, the remainder of the composition including iron and the inevitable impurities resulting from processing. The microstructure of the sheet includes 65 to 85% ferrite and 15 to 35% islands of martensite and residual austenite. The average size of these islands of martensite and residual austenite is less than 1.3 micrometers and their shape factor is less than 3. | 05-01-2014 |
20140065434 | Steel Sheet Suitable for Enamelling and Method for Producing Such a Sheet - The present invention is related to a rolled steel sheet suitable for enamelling, said sheet having a carbon profile, defined by a gradient in the C-level from a level C | 03-06-2014 |
20130209833 | Hot-rolled or cold-rolled steel plate, method for manufacturing same, and use thereof in the automotive industry - Hot-rolled or cold-rolled steel plate, method for manufacturing same and use thereof in the automotive industry | 08-15-2013 |
20130174948 | AUSTENITE-FERRITE STAINLESS STEEL OF IMPROVED MACHINABILITY - The invention concerns an austenite-ferrite stainless steel composition, whose composition contains in % by weight:
| 07-11-2013 |
20130133575 | METHOD AND DEVICE FOR MEASURING THE THICKNESS OF A COATING LAYER ON A RUNNING STRIP - A method and device for measuring the thickness of a coating material layer of a running strip according to which, by means of an eddy current sensor for at least one area of the strip, a quantity is measured, representative of the thickness of the coating layer and the thickness of the coating layer is determined from the measured quantity and from at least one calibration value. The measurement made with an eddy current sensor comprises the measurement of the complex impedance of a coil facing the running strip for a low excitation frequency and a high excitation frequency and the elaboration of a quantity representative of the thickness of the coating layer from said complex impedance measurements. A device for applying the method and a coating installation equipped with the device. | 05-30-2013 |
20130088037 | LIGHTWEIGHT STEEL DOOR FOR VEHICLE AND METHOD FOR MANUFACTURING THE SAME - A vehicle door assembly comprises an inner panel integrally formed by upper and lower horizontal beams interconnected by front and rear upright beams, and an outer panel bonded to the inner panel. The frame portion comprises opposite front and rear U-shaped side frame members non-detachably attached to each other by upper and lower intermediate frame members so as to form a continuous perimeter. The side frame members are made of a first steel material and the intermediate frame members made of a second steel material, which is different from the first steel material. A method for manufacturing the inner panel comprises the steps: providing U-shaped sheets of the first steel material, providing top and bottom sheets of the second steel material, non-detachably connecting the U-shaped sheets to the top and bottom sheets so as to form a blank, and stamping the blank into the frame portion. | 04-11-2013 |
20130087533 | METHODS AND SYSTEMS FOR RESISTANCE SPOT WELDING USING DIRECT CURRENT MICRO PULSES - Methods and systems for resistance spot welding using direct current micro pulses are described. One described method comprises comprising forming a weld joint by applying a plurality of direct current micro pulses to at least two pieces of materials through a first electrode and a second electrode. | 04-11-2013 |
20120269672 | METHOD FOR MANUFACTURING A METAL INGOT COMPRISING A BORE, AND ASSOCIATED INGOT AND MOLDING DEVICE - In said method, the mold ( | 10-25-2012 |
20120237389 | HEAT-RESISTANT AUSTENITIC STEEL HAVING HIGH RESISTANCE TO STRESS RELAXATION CRACKING - An austenitic steel not susceptible to relaxation cracking, with composition comprising, in percentages by weight: 0.019% ≦C ≦0.030%, 0.5% ≦Mn ≦2%, 0.1% ≦Si ≦0.75%, Al >0.25%, 18% ≦Cr ≦25%, 12% ≦Ni ≦20%, 1.5% ≦Mo ≦3%, 0.001 % | 09-20-2012 |
20120107636 | METHOD FOR MANUFACTURING A COATED METAL STRIP WITH AN ENHANCED APPEARANCE - One subject of the invention is a process for manufacturing a metal strip having a metal coating for corrosion protection, comprising the steps consisting in:
| 05-03-2012 |
20120090515 | BLAST FURNACE TOP GAS RECYCLING PROCESS AND CORRESPONDING RECYCLING EQUIPMENT - The invention mainly relates to a process for recycling blast furnace gas in which at least one portion of the gases resulting from the blast furnace undergo a CO | 04-19-2012 |
20120066990 | Fire Resistant Steel Structure - A fire resistant steel structure ( | 03-22-2012 |
20110308672 | FURNACE CONFIGURED FOR USE IN BOTH THE GALVANNEALING AND GALVANIZING OF A METAL STRIP - A heat treatment or heat soak furnace for use in both galvannealing and galvanizing processes including a heating apparatus configured to supply heat and remove heat. The heating apparatus may draw hot air from the exhaust of a direct fire strip annealing furnace, gas burners or electric heat exchangers as necessary. The furnace also may include a plurality of cooling mechanisms in order to ensure heat is removed and the temperature within the furnace regulated. In addition, the furnace may include baffles configured to allow portions of the interior of the furnace to be separated into different temperature zones. The furnace under this invention is capable of providing a suitable thermal environment for a desired time, duration, for steel sheet substrates with different chemistries, different coating thicknesses and different process speeds to achieve an optimum phase microstructure of the galvannealed, zinc-iron alloy coating; or to promptly solidify the galvanizing unalloyed zinc coating so that it has a high quality surface morphology. | 12-22-2011 |
20110168300 | MANUFACTURING METHOD FOR VERY HIGH-STRENGTH COLD-ROLLED DUAL-PHASE STEEL SHEETS AND SHEETS SO PRODUCED - The invention relates to a cold-rolled and annealed Dual-Phase steel sheet having a strength between 980 and 1100 MPa, and a breaking elongation greater than 9%, of which the composition comprises, the contents being expressed by weight: 0.055%≦C≦0.095%, 2%≦Mn≦2.6%, 0.005%≦Si≦0.35%, S≦0.005%, P≦0.050%, 0.1≦Al≦0.3%, 0.05%≦Mo≦0.25%, 0.2%≦Cr≦0.5%, it being understood that Cr+2Mo≦0.6%, Ni≦0.1%, 0.010≦Nb≦0.040%, 0.010≦Ti≦0.050%, 0.0005≦B≦0.0025%, and 0.002%≦N≦0.007%, the remainder of the composition consisting of iron and the inevitable impurities resulting from the smelting. | 07-14-2011 |
20110111255 | METHOD FOR PRODUCING A COATED METAL STRIP HAVING AN IMPROVED APPEARANCE - The invention relates to a process for manufacturing a metal strip having a metallic corrosion protection coating, comprising the steps consisting in:
| 05-12-2011 |