Patents Assigned to ARCELORMITTAL INVESTIGACION
  • Patent number: 9805918
    Abstract: The invention relates to a plasma source (1) for depositing a coating onto a substrate (9), which is connectable to a power source (P) and includes: an electrode (2); a magnetic assembly (4) located circumferentially relative to said electrode and including a set of magnets mutually connected by a magnetic bracket (46) including a first and second central magnet (43, 44) and at least one head magnet (45); and an electrically insulating enclosure (5) arranged such as to surround the electrode and the magnets.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: October 31, 2017
    Assignee: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO SL
    Inventors: Florin Daniel Duminica, Vincent LeClercq, Eric Silberberg, Alain Daniel
  • Patent number: 9773077
    Abstract: A simplified tool is provided for simultaneous prediction of dent resistance and snap-through buckling resistance of roof panels including the effect of roof bow placement, curvatures of the roof panel, thickness of the roof, and steel grade. In one embodiment, a method of predicting snap-through buckling resistance of a sheet metal panel to an applied load under localized loading conditions is provided, wherein the sheet panel has certain defined geometries. The method includes the steps of: identifying first and second principal radii of curvature of the panel; identifying a thickness of the panel; identifying the distance of a portion of the panel between structural supports; creating a mathematical function to determine load deflection behavior for snap-through buckling; and determining the likelihood of the panel to display snap-through buckling characteristics under various localized applied loads by inputting the parameters.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: September 26, 2017
    Assignee: ArcelorMittal Investigacion y Desarrollo, S.L.
    Inventors: Sriram Sadagopan, Oscar Lanzi
  • Patent number: 9719162
    Abstract: A method for hot-dip coating of a steel strip running in a bath of liquid metal such as zinc, or metal alloy contained in a pan is provided. Dross which are formed during the coating and float at the surface of the bath are moved away from the surface of the strip by at least one inductor. Each inductor produces a sliding electromagnetic field oriented along a given direction and generates a magnetomotive force, and the magnetomotive forces displaced the dross towards a container intended to collect them and/or towards an area of the surface of the bath from which they are discharged. For at least one of the inductors, the direction of the respective sliding electromagnetic field is reversed intermittently so as to modify the flows of the dross inside the pan. A hot dip coating facility is also provided.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: August 1, 2017
    Assignee: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO, S.L.
    Inventors: Marc Anderhuber, Alain Daubigny
  • Patent number: 9714269
    Abstract: The present invention relates to quality control methods using inorganic binding peptides, wherein inorganic entities are identified using inorganic-binding peptides specifically binding to the inorganic entity of interest. In particular, the invention includes a method for the identification of defects or inhomogeneities on a surface by detecting an inorganic entity of interest. It further includes a method for the isolation of powder particles comprising an inorganic entity of interest from a mixture of powder particles. In addition, the present invention relates to inorganic-binding peptides comprising the amino acid sequence MTWDPSLASPRS (SEQ ID NO: 31) and the amino acid sequence LNAAVPFTMAGS (SEQ ID NO: 32), respectively.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: July 25, 2017
    Assignees: UNIVERSITE DE LIEGE INTERFACE ENTERPRISES UNIVERSITE, ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO, S.L., GESVAL S.A., SYMBIOSE BIOMATERIALS S.A.
    Inventors: Christelle Vreuls, Cécile Van De Weerdt, Catherine Archembeau, André Renard, Joseph Martial
  • Patent number: 9689050
    Abstract: A rolled steel sheet or blank is provided, the composition of which comprises the elements listed below in percent by weight: C?0.1%; 0.5%?Mn?7%; 0.5%?Si?3.5%; 0.5%<Ti?2%; 2%<Ni?7%; Al?0.10%; Cr?2%; Cu?2%; Co?2%; Mo?2%; S?0.005%; P?0.03%; Nb?0.1%; V?0.1%; B<0.005%; N?0.008%, and the silicon and titanium contents are such that: Si + Ti ? 2.5 ? % , Ti Si ? 0.3 the remainder of the composition consisting of iron and unavoidable impurities resulting from processing. A method for the fabrication of a part for a land motor vehicle from the sheet or blank by hot stamping is also provided. The microstructure of the part consisting essentially of martensite and intermetallic precipitates of type Fe2TiSi with an area percentage between 1 and 5% intermetallic precipitates.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: June 27, 2017
    Assignee: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO S.L.
    Inventors: Olivier Bouaziz, David Barbier, Coralie Jung
  • Patent number: 9670576
    Abstract: 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.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: June 6, 2017
    Assignee: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO SL
    Inventors: Maxime Monnoyer, Daniel Chaleix, Christian Allely, Daniel Jacques, Julie Chassagne
  • Patent number: 9643248
    Abstract: A tundish impact pad, a tundish containing the same, and a method of using and assembly containing the impact pad and tundish are provided. The tundish impact pad features a base having a base surface with a conical impact surface area establishing an apex, a sidewall, and a top wall extending inwardly relative to the sidewall to terminate at an inner edge establishing a mouth opening spaced above and centered relative to the apex. The top wall includes a lip sloping radially inwardly and downwardly towards the conical impact surface.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: May 9, 2017
    Assignee: ArcelorMittal Investigacion y Desarrollo, S.L.
    Inventor: Tathagata Bhattacharya
  • Patent number: 9636724
    Abstract: A method for rolling a Z-section sheet pile comprises rolling a curved preform of a web (16) in successive roll gaps defined by at least one roll pair comprising a grooved upper roll (26) and a grooved lower roll (28), wherein: a first corner (18) and an adjoining first part of the curved preform of the web (16) are formed in a first groove (42) of an upper roll (26); and a second corner (20) and an adjoining second part of the curved preform of the web (16) are formed in a first groove (46) of a lower roll (28). In the last roll gaps forming the curved preform of the web (16), the diameter of the lower roll (28) decreases in a discontinuous manner in the interval between the first groove (42) in the upper roll (26) and the first groove (46) in the lower roll (26), and the diameter of the upper roll (26) increases in this interval in a complementary manner.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: May 2, 2017
    Assignee: ArcelorMittal Investigación Y Desarrollo S.L.
    Inventors: Aloyse Hermes, François Robinet
  • Patent number: 9598757
    Abstract: A metal sheet including a substrate having at least one face coated by a metallic coating is provided. The metallic coating has an aluminum content by weight tAl of between 3.6 and 3.8% a magnesium content by weight tMg of between 2.7 and 3.3%. The coating has a microstructure comprising a lamellar matrix of eutectic ternary Zn/Al/MgZn2 and possibly: dendrites of Zn with an accumulated surface content exceeding 5.0%, flowers of binary eutectic of Zn/MgZn2 with an accumulated surface content less than or equal to 15.0%, dendrites of binary eutectic Zn/Al surface with an accumulated surface content of less than 1.0% islets of MgZn2 with an accumulated surface content below 1.0%.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: March 21, 2017
    Assignee: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO S.L.
    Inventors: Christian Allely, Luc Diez, Tiago Machado Amorim, Jean-Michel Mataigne
  • Patent number: 9587286
    Abstract: The present invention provides an austenite-ferrite stainless steel. The steel composition contains in % by weight: 0.01%?C?0.10% 20.0%?Cr?24.0% 1.0%?Ni?3.0% 0.12%?N?0.20% 0.5%?Mn?2.0% 1.6%?Cu?3.0% 0.05%?Mo?1.0% W?0.15% 0.05%?Mo+W/2?1.0% 0.2%?Si?1.5% Al?0.05% V?0.5% Nb?0.5% Ti?0.5% B?0.003% Co?0.5% REM?0.1% Ca?0.03% Mg?0.1% Se?0.005% O?0.01% S?0.030% P?0.040% the rest being iron and impurities resulting from the production and the microstructure being composed of austenite and 35 to 65% ferrite by volume, the composition furthermore obeying the following relations: 40?IF?65 with IF=10% Cr+5.1% Mo+1.4% Mn+24.3% Si+35% Nb+71.5% Ti?595.4% C?245.1% N?9.3% Ni?3.3% Cu?99.8 and IRCGCU?32.0 with IRCGCU=% Cr+3.3% Mo+2% Cu+16% N+2.6% Ni?0.7% Mn and 0?IU?6.0 with IU=3% Ni+% Cu+% Mn?100% C?25% N?2(% Cr+% Si)?6% Mo+45 as well as a method of manufacture of plates, bands, coils, bars, wires, profiles, forged pieces and molded pieces of this steel.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: March 7, 2017
    Assignees: UGITECH, ArcelorMittal Investigacion Y Desarrollo SL
    Inventors: Jerome Peultier, Amelie Fanica, Nicolas Renaudot, Christophe Bourgin, Eric Chauveau, Marc Mantel
  • Patent number: 9586258
    Abstract: A molding device for vacuum casting a metal ingot is provided. The mold includes a mold cavity defined by an ingot mold, a core and a bottom. The mold is arranged inside a vacuum-cast enclosure and includes a source of introducing molten metal at the upper portion thereof. A distribution device for receiving and distributing molten metal, which is suitable for receiving the molten steel introduced into the vacuum-cast enclosure and for redistributing the molten metal in the mold cavity, is arranged at the upper portion of the mold cavity. The molten metal is introduced into the enclosure so as to form a first jet of molten steel under a vacuum, in order to pour the molten metal over the distribution device and to form at least one second jet of molten steel under a vacuum, which originates with the distribution device and terminates in the mold cavity so as to fill the mold cavity with molten metal.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: March 7, 2017
    Assignee: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO S.L.
    Inventors: Thierry Faudan, Jean-Luc Dabin, Gilbert Lacagne, Maxime Leroy, Bruno Savalli, Franck Braconnier
  • Patent number: 9540719
    Abstract: A hot rolled steel sheet with a yield stress greater than 690 MPa and less than or equal to 840 MPa, with strength between 780 MPa and 950 MPa, elongation at failure greater than 10% and a hole expansion ratio (Ac) greater than or equal to 50% is described. Methods for the fabrication of the sheet are also described.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: January 10, 2017
    Assignee: ARCELORMITTAL INVESTIGACION Y DESARROLLO SL
    Inventors: Astrid Perlade, Aurelie Milami, Florence Pechenot, Erik Stenback, Jean Marc Pipard, Farid E. Hassani
  • Patent number: 9512501
    Abstract: 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.).
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: December 6, 2016
    Assignee: ArcelorMittal Investigacion y Desarrollo, S.L.
    Inventors: Bruce L. Bramfitt, Fred B. Fletcher, John A. Davis, Jr.
  • Patent number: 9498822
    Abstract: Continuous casting equipment for a flow of liquid metal from a tundish into a mold is provided. The equipment includes a vertical duct disposed upstream of the mold 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.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: November 22, 2016
    Assignee: Arcelormittal Investigacion Y Desarrollo, S.L.
    Inventors: Mathieu Brandt, Jean-Paul Fischbach, Paul Naveau
  • Patent number: 9427939
    Abstract: The present invention provides a cold rolled steel sheet. The steel sheet has a strength greater than 1000 MPa, a uniform elongation greater than 12% and a V-bendability greater than 90°. The composition of the steel sheet includes, expressed in per cent by weight, 0.15%?C?0.25%, 1.8%?Mn?3.0%, 1.2%?Si?2%, 0%?Al?0.10%, 0%?Cr?0.50%, 0%?Cu?1%, 0%?Ni?1%, 0%?S?0.005%, 0%?P?0.020%, Nb?0.015%, Ti?0.020%, V?0.015%, Co?1%, N?0.008%, B?0.001% whereby Mn+Ni+Cu?3%. The remainder of the composition consists of iron and inevitable impurities resulting from processing. The microstructure includes, in area percentage, 5 to 20% polygonal ferrite, 10 to 15% residual austenite, 5 to 15% martensite and a balance of bainite. The bainite is in the form of laths and includes carbides between the laths. A number N of inter-lath carbides larger than 0.1 micrometers per unit of surface area is less than or equal to 50000/mm2. A fabrication method and a motor vehicle are also provided.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: August 30, 2016
    Assignee: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO, S.L.
    Inventors: Sebastien Allain, Jan Mahieu, Mickael Denis Crouvizier, Thierry Mastrorillo, Arnaud Hennion
  • Patent number: 9375667
    Abstract: 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.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: June 28, 2016
    Assignee: ArcelorMittal Investigacion y Desarrollo, S.L.
    Inventor: Naiyang Ma
  • Patent number: 9340943
    Abstract: A method and a tool (10) for forming a seal in a lock chamber (3) of a sheet pile are proposed. The method comprises the steps of: introducing a seal forming tool (10) into the lock chamber (3); injecting a sealing material into a distribution chamber (50) of the tool (10) from where it axially fills longitudinally extending recesses (38?, 38?, 38??) in a seal-shaping module (12); and moving the tool (10) longitudinally through the lock chamber (3), whereby the sealing material is shaped by the seal-shaping module (12). The distribution chamber (50) is a closed chamber inside the tool (10) and spaced from the longitudinally extending recesses (38?, 38?, 38??); and the tool (10) comprises moreover at least two distribution channels (52?, 52?, 52??) connecting in parallel the distribution chamber (50) to the recesses (38?, 38?, 38??), the parallel distribution channels (52?, 52?, 52??) being fine-tuned for apportioning the flow of sealing material between the recesses (38?, 38?, 38??).
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: May 17, 2016
    Assignee: Arcelormittal Investigación Y Desarrollo S.L.
    Inventors: Luis Da Silva Arêde, Anne Fagot, Thierry Mauer, Pol Reichert
  • Patent number: 9308577
    Abstract: 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.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: April 12, 2016
    Assignee: ArcelorMittal Investigacion y Desarrolli, S.L.
    Inventors: Paul Schurter, Timothy Lim, Paul Dolan, Hamed Sharifi
  • Patent number: 9310001
    Abstract: 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.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: April 12, 2016
    Assignee: ArcelorMittal Investigacion y Desarrollo, S.L.
    Inventor: Sree Harsha Lalam
  • Publication number: 20160017452
    Abstract: 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 C0 between 0.07% and 0.5%, whereby this content is expressed by weight, and a metal pre-coating on at least the two principal faces of the steel substrate, characterized in that the substrate comprises a decarburized area on the surface of each of the two principal faces, whereby the depth p50% of the decarburized area is between 6 and 30 micrometers, whereby p50% is the depth at which the carbon content is equal to 50% of the content C0, and in that the sheet does not contain a layer of iron oxide between the substrate and the metal pre-coating.
    Type: Application
    Filed: September 6, 2013
    Publication date: January 21, 2016
    Applicant: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO, S.L.
    Inventors: Juan David Puerta Velasquez, Jonas Staudte, Pascal Drillet