公开(公告)号：US20140057128A1

公开(公告)日：2014-02-27

申请号：US14070132

申请日：2013-11-01

Applicant: ArcelorMittal France

Inventor： Jean-Francois Canourgues ,  Aurelien Pic ,  Pascal Verrier ,  Rene Vierstraete ,  Wolfram Ehling ,  Bernd Thommes

IPC: B32B15/01 ,  B23K37/00 ,  C23C10/22 ,  B23K1/14 ,  B23K26/24 ,  B23K9/00

CPC classification number: B23K33/00 ,  B23K1/14 ,  B23K9/0026 ,  B23K9/02 ,  B23K9/025 ,  B23K9/23 ,  B23K10/02 ,  B23K26/21 ,  B23K26/24 ,  B23K26/26 ,  B23K26/32 ,  B23K26/322 ,  B23K26/36 ,  B23K26/362 ,  B23K26/40 ,  B23K31/02 ,  B23K37/003 ,  B23K2101/18 ,  B23K2101/34 ,  B23K2103/04 ,  B23K2103/08 ,  B23K2103/10 ,  B23K2103/50 ,  B32B15/012 ,  C21D1/00 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D9/50 ,  C21D2211/008 ,  C22C21/02 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/28 ,  C22C38/32 ,  C23C2/04 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40 ,  C23C10/22 ,  C23C28/021 ,  F16B5/08 ,  Y10T428/12229 ,  Y10T428/12271 ,  Y10T428/12389 ,  Y10T428/12396 ,  Y10T428/12486 ,  Y10T428/12493 ,  Y10T428/12757 ,  Y10T428/12764 ,  Y10T428/12972 ,  Y10T428/12979 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/24975 ,  Y10T428/26 ,  Y10T428/263 ,  Y10T428/264 ,  Y10T428/265

Abstract: A plate is provided. The plate includes a steel substrate and a precoat having a layer of intermetallic alloy in contact with the substrate, topped by a layer of aluminum alloy. On at least one precoated face of the plate, an area situated at the periphery of the plate has the aluminum alloy layer removed. A part and a welded blank are also provided. Methods are also provided.

Abstract translation: 提供板材。 板包括钢基材和预涂层，其具有与基底接触的金属间合金层，顶层由铝合金层组成。 在板的至少一个预涂面上，位于板周边的区域除去了铝合金层。 还提供了零件和焊接坯料。 还提供了方法。

公开(公告)号：US20140033979A1

公开(公告)日：2014-02-06

申请号：US13920069

申请日：2013-06-17

Applicant: Arcelormittal Dofasco Inc.

Inventor： Douglas Marriott ,  Robert Eric Mueller

IPC: G01N21/95 ,  B05B15/00

CPC classification number: G01N21/95 ,  B05B12/004 ,  B05B12/082 ,  B05B15/00 ,  B05B15/50 ,  B05B15/658 ,  B05D1/02 ,  G01N21/47 ,  G05B23/0229

Abstract: A spray monitoring device analyzes images obtained from a beam passing through a spray pattern applying a spray to a substrate, and identifies discontinuities in the image as indicative of a discontinuity in a spray pattern. The spray pattern is produced by a plurality of nozzles spaced apart across the substrate for applying a suitable coating thereto. The beam is produced by a laser, that preferably has a collimator for distributing the beam intensity. The beam is imaged by a camera that provides a constant image to a computers where the scattering of beam light by the spray pattern is processed by image processing software and optionally provided to a user interface for analysis. Discontinuities detected by the user or software indicate faulty spray nozzles and may trigger remedial action.

Abstract translation: 喷雾监测装置分析从通过喷射图案的光束获得的图像，其施加喷雾到基底，并且识别图像中的不连续性，指示喷射图案中的不连续性。 喷雾图案由跨过衬底间隔开的多个喷嘴产生，用于向其施加合适的涂层。 光束由激光产生，其优选地具有用于分布光束强度的准直器。 通过相机对光束进行成像，照相机向计算机提供恒定的图像，其中通过图像处理软件处理由喷雾图案散射的光束，并且可选地提供给用户界面进行分析。 用户或软件检测到的不连续性表示喷嘴有故障，可能会触发补救措施。

公开(公告)号：US20250163657A1

公开(公告)日：2025-05-22

申请号：US18840140

申请日：2022-02-28

Applicant: ArcelorMittal

Inventor： Giuseppe SELLITTO ,  Michaël GREMLING ,  Elena DI SILVESTRO

IPC: E01D18/00 ,  E01D21/06

Abstract: A method for erecting a portion of a transportation structure including a plurality of piers, a plurality of platforms forming a service pathway, a first plurality of girders forming a first assembly of tube segments and a first rooftop transportation pathway, a second plurality of girders forming a second assembly of tube segments and a second rooftop transportation pathway, both assemblies being capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the method including conveying with vehicle(s) the girders and platforms along the first and/or second rooftop transportation pathway, positioning them and having the vehicle(s) return along the service pathway. A portion of a transportation structure is also provided.

公开(公告)号：US20250154735A1

公开(公告)日：2025-05-15

申请号：US18840137

申请日：2022-02-28

Applicant: ArcelorMittal

Inventor： Giuseppe SELLITTO ,  Michaël GREMLING ,  Elena DI SILVESTRO

IPC: E01D18/00 ,  B61B13/08 ,  B61B13/10 ,  E01D2/00 ,  E01D19/02 ,  E01D21/00

Abstract: A method for erecting a portion of a transportation structure including a plurality of piers, a first plurality of girders forming a first assembly of tube segments and a first rooftop transportation pathway, a second plurality of girders forming a second assembly of tube segments and a second rooftop transportation pathway, both assemblies being capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the method including conveying with vehicle(s) the girders along one single rooftop transportation pathway, positioning them and having the vehicle(s) return along the other rooftop transportation pathway. A portion of a transportation structure is also provided.

公开(公告)号：US20250137105A1

公开(公告)日：2025-05-01

申请号：US18988516

申请日：2024-12-19

Applicant: ArcelorMittal

Inventor： Sebastian COBO ,  Emmanuel LUCAS ,  Matthieu SALIB ,  Guillaume STECHMANN

IPC: C22C38/04 ,  C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/14

Abstract: A steel sheet hasa chemical composition including in wt % C: 0.2-0.4%, Mn: 0.8-2.0%, Si: 0.1-0.5%, Al: 0.01-0.1%, Ti: 0.01-0.1%, B: 0.0005-0.005%, P≤0.040%, Ca≤0.01%, S≤0.006%, N≤0.01%. The steel sheet includes from the bulk to the surface of the coated steel sheet a bulk and a skin layer occupying the outermost 10% of the thickness on either side of the bulk. The bulk includes an inclusion population in which the sum of clustering indexes of MnS and TiN/Ti(C,N) inclusions is less than or equal to 300 μm/mm2. This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300 MPa and a bending anisotropy equal to or lower than 7°.

公开(公告)号：US20250137083A1

公开(公告)日：2025-05-01

申请号：US19011522

申请日：2025-01-06

Applicant: ArcelorMittal

Inventor： Alice DUMONT ,  Guillaume STECHMANN ,  Emmanuel LUCAS ,  Matthieu SALIB

IPC: C21D9/00 ,  C21D1/18 ,  C21D6/00 ,  C21D7/13 ,  C21D8/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32

Abstract: A steel sheet having a chemical composition including in wt % C: 0.2-0.4%, Mn: 0.8-2.0%, Si: 0.1-0.5%, Al: 0.01-0.1%, Ti: 0.01-0.1%, B: 0.0005-0.005%, P≤0.040%, Ca≤0.01%, S≤0.006%, N≤0.01%. The steel sheet includes from the bulk to the surface of the coated steel sheet a bulk and a skin layer occupying the outermost 10% of the thickness on either side of the bulk. The bulk is topped by a skin layer occupying the outermost 10% of the thickness on either side of the bulk, the density of TiN/Ti(C,N) inclusions in the skin being smaller than 240 particles/mm2 and the clustering index of MnS inclusions in the skin being lower than 110 μm/mm2. This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300 MPa and a bending angle normalized to 1.5 mm and measured in the transverse direction strictly greater than 48°.

公开(公告)号：US12281366B2

公开(公告)日：2025-04-22

申请号：US17771874

申请日：2020-10-20

Applicant: ArcelorMittal

Inventor： Raisa Grigorieva ,  Florin Duminica ,  Brahim Nabi ,  Pascal Drillet ,  Thierry Sturel

IPC: C21D1/18 ,  C21D1/26 ,  C21D1/76 ,  C21D8/02 ,  C21D9/48 ,  C23C2/06 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28

Abstract: A press hardening method includes the following steps: A. the provision of a steel sheet for heat treatment, precoated with a zinc- or aluminum-based pre-coating for anti-corrosion purpose, B. the deposition of a hydrogen barrier pre-coating over a thickness from 10 to 550 nm, C. the batch annealing of the precoated steel sheet in an inert atmosphere to obtain a pre-alloyed steel sheet, D. the cutting of the pre-alloyed steel sheet to obtain blank, E. the thermal treatment of the blank to obtain a fully austenitic microstructure in the steel, F. the transfer of the blank into a press tool, G. the hot-forming of the blank to obtain a part, H. the cooling of the part obtained at step G).

公开(公告)号：US20250122590A1

公开(公告)日：2025-04-17

申请号：US18890744

申请日：2024-09-19

Applicant: ArcelorMittal

Inventor： Jean- Philippe MASSE ,  Jean-Christophe HELL

IPC: C21D9/46 ,  B32B15/01 ,  C21D1/18 ,  C21D1/19 ,  C21D1/26 ,  C22C38/02 ,  C22C38/06 ,  C22C38/34 ,  C22C38/38 ,  C23C2/02 ,  C23C2/06 ,  C23C2/12 ,  C23C2/40 ,  C23F17/00 ,  C25D3/22 ,  C25D3/56

Abstract: A method is for producing a high strength coated steel sheet having a yield stress YS>550 MPa, a tensile strength TS>980 MPa, and improved formability and ductility. The steel contains: 0.15%≤C≤0.25%, 1.2%≤Si≤1.8%, 2%≤Mn≤2.4%, 0.1%≤Cr≤0.25%, Al≤0.5%, the balance being Fe and unavoidable impurities. The sheet is annealed at a temperature between TA1=Ac3−0.45*(Ms−QT) and TA2=830° C. for at least 30 s then quenched by cooling it to a quenching temperature QT between 180° C. and 300° C., then heated to a partitioning temperature PT between 380° C. and 480° C. and maintained at this temperature for a partitioning time Pt between 10 s and 300 s, then either hot dip coated and cooled to the room temperature with a cooling rate of at least 25° C./s below 300° C., or directly cooled to the room temperature with a cooling rate of at least 25° C./s and further electro-galvanized, or cooled to the room temperature with a cooling rate of at least 25° C./s without coating. The steel contains 5% to 25% of intercritical ferrite, at least 50% of partitioned martensite, at least 10% of residual austenite, less than 10% of fresh martensite, and bainite, the sum of partitioned martensite and bainite being at least 60%. It also relates to the obtained coated or non coated sheet.

公开(公告)号：US12270094B2

公开(公告)日：2025-04-08

申请号：US15934638

申请日：2018-03-23

Applicant: ArcelorMittal SA

Inventor： Daniel Chaleix ,  Isabelle Capitani ,  Eric Silberberg ,  Sergio Pace ,  Bruno Schmitz ,  Xavier Vanden Eynde

IPC: C23C2/06 ,  B32B15/01 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/18 ,  C22C38/38 ,  C23C14/16 ,  C23C14/24 ,  C23C14/56 ,  C23C28/00

Abstract: A method for the fabrication of a coated sheet is provided. The method includes the steps of providing a sheet in a deposition chamber, maintaining the deposition chamber at a pressure Pchamber, maintaining an ejection chamber that is located inside the deposition chamber at a pressure Peject and coating the sheet with zinc with a sonic vapor jet. A ratio of the pressures Pchamber to Peject is between 2·10−3 and 5.5·10−2.

公开(公告)号：US20250091131A1

公开(公告)日：2025-03-20

申请号：US18728089

申请日：2023-01-31

Applicant: ArcelorMittal

Inventor： Frédéric BONNET ,  Valérie DAESCHLER ,  Luis Miguel SANZ MORAL ,  Rosalía REMENTERIA FERNANDEZ ,  Laura DEL RIO FERNANDEZ

IPC: B22F9/08 ,  B22F1/05 ,  B33Y70/00 ,  C22C33/04

Abstract: A ferrous alloy powder for additive manufacturing, obtained by atomization with a gas made of at least 95% in volume of nitrogen, the alloy including carbon up to 0.5 wt. %, titanium up to 11.0 wt. %, boron up to 5 wt. %, manganese up to 30 wt. %, aluminium up to 15 wt. %, silicon up to 1.5 wt. %, vanadium up to 0.5 wt. %, copper up to 2 wt. %, niobium up to 2 wt. %, the remainder being iron and residual elements, the powder including endogenous nitrides and/or carbonitrides of at least one element chosen among a group consisting of titanium, aluminium, boron, vanadium, silicon, and niobium, the nitrogen content of such ferrous alloy powder being above the solubility limit of nitrogen in such alloy, at the atomization temperature. A manufacturing method of such powder is also provided.