公开(公告)号：US20200224297A1

公开(公告)日：2020-07-16

申请号：US16349864

申请日：2017-11-23

Applicant: ArcelorMittal

Inventor： Thomas HENRION ,  Ronan JACOLOT ,  Martin BEAUVAIS

IPC: C22C38/50 ,  C22C38/48 ,  C22C38/02 ,  C22C38/04 ,  C21D8/02 ,  C23C2/12 ,  B21D22/02 ,  C23C2/40

Abstract: A method for manufacturing a hot-rolled and coated steel sheet having a thickness between 1.8 mm and 5 mm. The method contains the steps of: providing a semi-product having a composition containing: 0.04%≤C≤0.38%, 0.40%≤Mn≤3%, 0.005%≤Si≤0.70%, 0.005%≤Al≤0.1%, 0.001%≤Cr≤2%, 0.001%≤Ni≤2%, 0.001%≤Ti≤0.2%, Nb≤0.1%, B≤0.010%, 0.0005%≤N≤0.010%, 0.0001%≤S≤0.05%, 0.0001%≤P≤0.1%, Mo≤0.65%, W≤0.30%, Ca≤0.006%, hot-rolling with a final rolling temperature FRT, to obtain a hot-rolled steel product having a thickness between 1.8 mm and 5 mm, then cooling down to a coiling temperature Tcoil satisfying: 450° C.≤Tcoil≤Tcoilmax with Tcoilmax=650−140×fγ, Tcoilmax being expressed in degrees Celsius and fγ designating the austenite fraction just before the coiling, and coiling to obtain a hot-rolled steel substrate, pickling and coating the hot-rolled steel substrate with Al or an Al alloy by continuous hot-dipping in a bath, to obtain a hot-rolled and coated steel sheet containing a hot-rolled steel sheet and an Al or an Al alloy coating, having a thickness between 10 and 33 μm, on each side of the hot-rolled steel sheet.

公开(公告)号：US10702916B2

公开(公告)日：2020-07-07

申请号：US15598951

申请日：2017-05-18

Applicant: ArcelorMittal France

Inventor： Frederic Bonnet ,  Olivier Bouaziz ,  Jean-Claude Chevallot

IPC: C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C21D8/02 ,  C21D7/00 ,  B22D25/06 ,  B32B15/01 ,  B23P17/04 ,  C22C38/14 ,  B22D11/00 ,  C22C38/00 ,  B22D11/06

Abstract: A steel plate, the chemical composition of which includes, the contents being expressed by weight: 0.010%≤C≤0.20%, 0.06%≤Mn≤3%, Si≤1.5%, 0.005%≤Al≤1.5%, S≤0.030%, P≤0.040%, 2.5%≤Ti≤7.2%, (0.45×Ti)−0.35%≤B≤(0.45×Ti)+0.70%, and optionally one or more elements chosen from: Ni≤1%, Mo≤1%, Cr≤31, Nb≤0.1%, V≤0.1%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting.

公开(公告)号：US10697052B2

公开(公告)日：2020-06-30

申请号：US15735337

申请日：2016-06-09

Applicant: ArcelorMittal

Inventor： Josee Drillet ,  Veronique Hebert

IPC: C23C2/02 ,  C23C14/02 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40 ,  C22C38/38 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/22 ,  C22C38/06 ,  C22C38/02 ,  C22C38/00 ,  C21D8/02 ,  B32B15/01 ,  C21D8/04 ,  C21D9/46 ,  C21D9/48

Abstract: The present invention provides a cold-rolled and annealed steel sheet of thickness between 0.7 mm and 2 mm, mechanical strength ranging from 1180 MPa to 1320 MPa, wherein the hole expansion ratio Ac % is greater than 20% and the bending angle is greater than or equal to 40°. The chemical composition includes, the contents being expressed as weight percent: 0.09%≤C≤0.11%, 2.6%≤Mn≤2.8%, 0.20%≤Si≤0.55%, 0.25%≤Cr

公开(公告)号：US10676804B2

公开(公告)日：2020-06-09

申请号：US15314457

申请日：2015-05-28

Applicant: ArcelorMittal

Inventor： Christian Allely ,  Jacques Petitjean

IPC: C21D9/46 ,  C22C21/10 ,  C23C2/12 ,  C23C2/28 ,  C23C2/26

Abstract: A steel sheet is provided with a coating providing sacrificial cathodic protection. The coating includes between 1 and 40% by weight zinc, between 0.01 and 0.4% by weight lanthanum, optionally up to 10% by weight magnesium, optionally up to 15% by weight silicon, and optionally up to 0.3% by weight, in cumulative amounts, of additional components, the remainder includes aluminum and unavoidable impurities or residual elements. A method of producing parts by hot or cold swaging and the parts which can be obtained in this way are also provided.

公开(公告)号：US10668570B2

公开(公告)日：2020-06-02

申请号：US15306735

申请日：2015-04-17

Applicant: ArcelorMittal

Inventor： Francis Schmit ,  René Vierstraete ,  Qingdong Yin ,  Wolfram Ehling

IPC: B23K26/60 ,  B23K26/26 ,  B23K26/322 ,  B23K26/348 ,  B23K9/173 ,  B23K26/211 ,  B23K9/167 ,  B23K26/40 ,  B23K26/361 ,  B23K28/02 ,  B23K26/32 ,  B23K101/00 ,  B23K101/18 ,  B23K101/34 ,  B23K103/04 ,  B23K103/08 ,  B23K103/00

Abstract: The present invention provides a method for the preparation of steel sheets to be fabricated into a welded steel blank. The method includes procuring at least one pre-coated first steel sheet and one pre-coated second steel sheet, made up of a steel substrate and a pre-coating made up of an intermetallic alloy layer in contact with the steel substrate, topped by a layer of aluminum metal or aluminum alloy or aluminum-based alloy, the first sheet having a principal face, an opposite principal face, and at least one secondary face, the second sheet having a principal face, an opposite principal face and at least one secondary face, positioning the first and second sheets, leaving a gap of between 0.02 and 2 mm between the secondary faces and facing each other, the mating of the first and second sheets defining a median plane perpendicular to the principal faces of the first sheet and the second sheet, then removing the layers of metal alloy by melting and vaporization simultaneously on the principal faces, in a peripheral zone of the sheets, the peripheral zones being the zones of the principal faces closest in relation to the median plane located one on either side of it.

公开(公告)号：US20200149129A1

公开(公告)日：2020-05-14

申请号：US16616937

申请日：2018-06-01

Applicant: ArcelorMittal

Inventor： Martin BEAUVAIS ,  Alice DUMONT ,  Alexandre GIBOT ,  Astrid PERLADE ,  Kangying ZHU

IPC: C21D9/50 ,  C21D9/46 ,  C21D8/04 ,  B32B15/01 ,  C21D6/00 ,  C22C38/38 ,  C22C38/28 ,  C22C38/26 ,  C22C38/22 ,  C22C38/32 ,  C22C38/06 ,  C22C38/02 ,  C22C38/00

Abstract: A steel sheet for the manufacture of a press hardened part is provided, having a composition of: 0.15%≤C%≤0.22%, 3.5%≤Mn

公开(公告)号：US10648142B2

公开(公告)日：2020-05-12

申请号：US15562367

申请日：2015-04-02

Applicant: ArcelorMittal

Inventor： Michaël Gremling

IPC: E01F15/04

Abstract: The present invention provides a spacer for a road safety barrier. The spacer includes a post and a rail connected to the post via an intermediary of the spacer and a connector. The spacer includes a rail support having a front face intended to be fastened to a rail, a rear face intended to be fastened to a post and a flange that connects the front face to the rear face. The front face includes a notch emerging on the upper edge of the front face, the notch includes a connector housing, located in the lower portion of the notch and two convergent lateral edges connecting the connector housing to the upper edge of the front face. The present invention also provides a safety barrier including a spacer and a fabrication kit for a safety barrier.

公开(公告)号：US10590501B2

公开(公告)日：2020-03-17

申请号：US14766326

申请日：2013-02-06

Applicant: ARCELORMITTAL

Inventor： Maiwenn Tifenn Soazig Larnicol ,  Michel Roger Louis Bordignon ,  Xavier Marc Jacques Edmond Robert Vanden Eynde ,  Ana Isabel Farinha ,  Pascal Gerkens ,  Jean-Francois Noville ,  Julien Christopher Michel Smal

IPC: C07D471/04 ,  A61K31/4375 ,  C21D1/46 ,  C23C2/06 ,  C23C2/02 ,  C21D9/46 ,  C23C28/00 ,  C23C2/40 ,  C23C2/20 ,  C21D6/00 ,  C21D9/52 ,  C23F17/00

Abstract: A method of treatment of a running ferrous alloy sheet containing at least one easily oxidized element is provided. The method includes a step of immersion of the sheet in a molten oxides bath.The molten oxides bath has a viscosity between 0.3.10−3 Pa·s and 3.10−1 Pa·s, the surface of the bath is contact with a non-oxidizing atmosphere, and the molten oxides are inert towards iron. The residence time of the running sheet in the bath is at least 1 s and the residues of oxides remaining on the surfaces of the sheet at the exit of the bath are eliminated.A treatment line of a ferrous alloy sheet for implementing the method, is provided. The treatment line includes a molten oxides bath having a viscosity between 0.3.10−3 and 3.10−1 Pa·s. The surface of the bath is contact with a non-oxidizing atmosphere, and the molten oxides are inert towards iron.Mechanical devices for eliminating the residues of molten oxides remaining on the surfaces of the ferrous alloy sheet are at the exit of the molten oxides bath.

公开(公告)号：US20200072554A1

公开(公告)日：2020-03-05

申请号：US16465913

申请日：2016-12-12

Applicant: ArcelorMittal

Inventor： Marco PICCO ,  David GLIJER ,  Daniel GUALTIERI

IPC: F27D19/00 ,  F27D21/00

Abstract: A process for measuring wear of a refractory lining of a receptacle intended to contain molten metal, containing the following steps: scanning a first surface of the refractory lining using a first laser scanner in order to obtain a first initial set of data representative of the first surface, scanning a second surface of the refractory lining using a second laser scanner, distinct from the first laser scanner, in order to obtain a second initial set of data representative of the second surface, wherein the second surface includes a grey zone for the first laser scanner, the receptacle defining an obstacle located between the first laser scanner and the grey zone during scanning by the first laser scanner, and calculating a final set of data using the first initial set of data and the second initial set of data, the final set of data being representative of a surface of the refractory lining including the first surface and the second surface.

公开(公告)号：US20200040438A1

公开(公告)日：2020-02-06

申请号：US16653183

申请日：2019-10-15

Applicant: ArcelorMittal

Inventor： Lydia RACHIELE ,  Herve DERULE ,  Delphine THAI

IPC: C23C2/06 ,  C23C2/26 ,  C23C22/05 ,  C23F11/14 ,  C25D3/22 ,  C25D5/48

Abstract: A coated metal sheet is provided. The coated metal sheet includes a steel substrate, a metal coating on at least one face of the steel substrate, the metal coating comprising at least 40% by weight of zinc; and a layer coating an outer surface of the metal coating, the layer including an amino acid in a neutral or salt form, the amino acid being selected from among alanine, arginine, aspartic acid, cysteine, glutamine, lysine, methionine, proline, serine, threonine, or of a mixture thereof, the amount of said amino acid or of said mixture being from 0.1 to 200 mg/m2, and optionally a base or a mixture of bases, or an acid or a mixture of acids.