公开(公告)号：US20210238735A1

公开(公告)日：2021-08-05

申请号：US16973114

申请日：2019-04-23

Applicant: ARCELORMITTAL

Inventor： Eric SILBERBERG ,  Thiago RABELO NUNES CAMPOS ,  Negar GILANI

IPC: C23C14/56 ,  C23C14/24 ,  C23C14/04 ,  C23C14/16

Abstract: A method for continuously depositing, on a running substrate, coatings formed from at least one metal inside a Vacuum deposition facility including a vacuum chamber, a coated substrate coated with at least one metal on both sides of the substrate and a vacuum deposition facility.

公开(公告)号：US20210230000A1

公开(公告)日：2021-07-29

申请号：US17051162

申请日：2019-04-05

Applicant: ArcelorMittal

Inventor： Thi Tan VU ,  Oscar PEREZ VIDAL ,  Roberto SUAREZ SANCHES

IPC: C01B32/19 ,  C01B32/196 ,  C01B32/182

Abstract: A method for the manufacture of pristine graphite from Kish graphite including three different steps A, B and C; the pristine obtained with among others a high amount of carbon atoms, i.e. a pristine graphene having a high purity; and the use of this pristine graphene.

公开(公告)号：US20210221687A1

公开(公告)日：2021-07-22

申请号：US17051615

申请日：2019-04-05

Applicant: ArcelorMittal

Inventor： Thi Tan VU

IPC: C01B32/198 ,  C01B32/23 ,  C01B32/19 ,  B01D21/26

Abstract: A method for the manufacture of graphene oxide from Kish graphite including the pretreatment of kish graphite and the oxidation of pre-treated kish graphite into graphene oxide, the graphene oxide obtained with at least 45% by weight of oxygen functional groups and the use of the graphene oxide.

公开(公告)号：US11046054B2

公开(公告)日：2021-06-29

申请号：US15741288

申请日：2016-07-07

Applicant: ArcelorMittal

Inventor： Denis Jacquet

IPC: B32B41/00 ,  B32B15/08 ,  B32B15/18 ,  B32B27/32 ,  B32B27/34 ,  B32B33/00 ,  B32B15/20 ,  B32B7/12 ,  B62D29/00

Abstract: A process for manufacturing a sandwich structure including two steel skin layers separated by a polymeric layer is provided. The process includes dimensioning the sandwich structure according to a target to be attained by defining the target to be attained by three target values, i.e., tensile strength Tc expressed in kN/mm, bending stiffness Bc expressed in kN/mm, and surface mass Mc expressed in Kg/m2, defining a tolerance for the attainment of target values, defining the sandwich structure by five variables, i.e., the thickness Ea of the steel skin layers expressed in mm, the polymeric layer thickness Ep expressed in mm, the intrinsic Young's modulus Yp of the polymeric layer, the intrinsic density dp of the polymeric layer, and the volume ratio Rp of the polymeric layer expressed as a volume percentage of the polymeric layer of the material, identifying the Ea, Ep, Yp, dp, and Rp combinations enabling attainment of the target values having the defined tolerance, and determining, for each variable, an operating range. The process also includes selecting the steel and the polymeric layer for which each variable is within the range defined in the previous step and manufacturing the corresponding sandwich structure.

公开(公告)号：US20210179434A1

公开(公告)日：2021-06-17

申请号：US16499407

申请日：2018-03-26

Applicant: ARCELORMITTAL

Inventor： Thi Tan VU ,  Maria CABANAS CORRALES ,  Abel ALVAREZ-ALVAREZ

IPC: C01B32/198 ,  C01B32/19 ,  C01B32/194 ,  C01B32/23 ,  C09K5/10

Abstract: The present invention provides a method for the manufacture of reduced graphene oxide from Kish graphite.

公开(公告)号：US10994327B2

公开(公告)日：2021-05-04

申请号：US16064897

申请日：2016-12-20

Applicant: ArcelorMittal

Inventor： Maria Cabanas Corrales ,  David Noriega Perez

IPC: B22D11/124 ,  C09K5/10 ,  C21D1/56 ,  C21D1/667 ,  C01B32/182 ,  B82Y30/00

Abstract: A method of heat treatment of a non-metallic or metallic item is provided. The method includes at least one step of heat transfer between the item and a heat transfer fluid A′. The heat transfer fluid A′ includes a fluid medium and nanoparticles having a lateral size between 26 and 50 μm. The heat transfer fluid has a heat transfer coefficient below the heat transfer coefficient of water.

公开(公告)号：US10926811B2

公开(公告)日：2021-02-23

申请号：US16346467

申请日：2017-11-21

Applicant: ArcelorMittal

Inventor： Jimmy Lam ,  Joël Wilsius ,  Nicolas Schneider

IPC: B62D29/00 ,  B21D22/02 ,  B32B15/01 ,  B62D25/06 ,  B62D25/20 ,  B62D27/02 ,  B62D33/06 ,  B62D65/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54

Abstract: The reinforcement member includes a body made of a press hardened steel having a tensile strength greater or equal to 1200 MPa. The body is coated with a zinc-based coating or with an aluminum-based coating and extends along a main direction. The reinforcement member also includes at least one tab extending from the body along a transversal direction forming a non-zero angle with the main direction. The bend between the body and the tab defines an intrados and an extrados. The tab is made of a cold bent part of the body, and the elongation of the extrados is between 10% and 25%.

公开(公告)号：US20210047707A1

公开(公告)日：2021-02-18

申请号：US17087019

申请日：2020-11-02

Applicant: ArcelorMittal

Inventor： Olga A. GIRINA ,  Damon PANAHI

IPC: C21D9/46 ,  C21D8/02 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40 ,  C21D1/22 ,  C22C38/00 ,  C23C2/02 ,  B32B15/04 ,  C22C38/44 ,  C23C2/26 ,  C22C38/04 ,  C23C30/00 ,  C22C38/02 ,  C22C38/18 ,  B32B15/01 ,  C22C38/12 ,  C23C2/34 ,  B32B15/18 ,  C21D6/00 ,  C22C38/06 ,  C22C38/22 ,  C22C38/34 ,  C22C38/38

Abstract: A method for producing a coated steel sheet having a tensile strength TS of at least 1450 MPa and a total elongation TE of at least 17% includes the successive steps of providing a cold rolled steel sheet made of a steel having a chemical composition comprising, in weight %: 0.34%≤C≤0.45%, 1.50%≤Mn≤2.30%, 1.50≤Si≤2.40%, 0%

公开(公告)号：US20210046577A1

公开(公告)日：2021-02-18

申请号：US16978898

申请日：2019-03-07

Applicant: ArcelorMittal

Inventor： Wolfram EHLING ,  Niko VAN DER BORGHT

IPC: B23K11/00 ,  B23K11/11 ,  B23K11/16 ,  B23K15/00 ,  B23K20/12 ,  B23K26/322 ,  B23K31/02

Abstract: A method for producing a welded metal blank (16) includes cutting a first initial metal sheet (1) and a second initial metal sheet (3) from a first and second metal strip (4); joining the first and second initial metal sheets (1,3) by welding so as to obtain an initial welded metal blank (9), the initial welded metal blank (9) comprising a weld joint (10) joining the first and the second initial metal sheets (1,3); and cutting said initial welded metal blank (9) by a process involving metal melting so as to obtain at least one final welded metal blank (16) comprising a first metal blank portion (17) and a second metal blank portion (18) joined by a weld joint portion (19) consisting of a portion of the weld joint (10) obtained during the joining step.

公开(公告)号：US10919088B2

公开(公告)日：2021-02-16

申请号：US16482585

申请日：2018-01-23

Applicant: ABB SCHWEIZ AG ,  ArcelorMittal

Inventor： Bengt Rydholm ,  Fredrik Sandberg ,  Hongliang Yang ,  Jan-Erik Eriksson ,  Jean-Marie Galpin ,  Bruno Langlet ,  Jean-Luc Curé ,  Nicolas Triolet ,  Thierry Lecoester

IPC: B22D41/62 ,  B22D11/115 ,  B22D11/18 ,  B22D41/18 ,  B22D41/58

Abstract: A method of controlling an electromagnetic stirrer arranged around a submerged entry nozzle (SEN) of a tundish provided with a stopper rod to control throughput of the tundish, the SEN being configured to provide tapping of molten metal from the tundish and the electromagnetic stirrer being configured to generate a rotating magnetic field in the SEN, wherein the method includes controlling the electromagnetic stirrer to operate only when a gas flow rate through the stopper rod is in a first range of 1.5 NL/min to 20 NL/min.