公开(公告)号：US20240093375A1

公开(公告)日：2024-03-21

申请号：US17768009

申请日：2020-10-12

Applicant: ArcelorMittal

Inventor： Frida GILBERT ,  Lydia RACHIELE ,  Delphine THAI ,  Christian ALLELY

IPC: C23C22/53 ,  C23C22/82 ,  C23C28/00

CPC classification number: C23C22/53 ,  C23C22/82 ,  C23C28/3225 ,  C23C28/34

Abstract: The invention relates to a steel substrate coated on at least one of its faces with a metallic coating based on zinc or its alloys wherein the metallic coating is itself coated with a conversion layer comprising:



zincsulphate hydrate,
aluminium in an amount up to 14 mg·m−2,
wherein the conversion layer comprises neither zinc hydroxysulphate, nor free water molecules nor any compounds having free hydroxyl groups, the surface density of sulphur in the conversion layer being greater than or equal to 5.0 mg/m2. The invention also relates to the corresponding treatment method.

公开(公告)号：US20230019292A1

公开(公告)日：2023-01-19

申请号：US17943561

申请日：2022-09-13

Applicant: ArcelorMittal

Inventor： Sebastian COBO ,  Christian ALLELY ,  Martin BEAUVAIS ,  Anis AOUAFI ,  Emmanuel LUCAS

IPC: C21D9/48 ,  C22C38/02 ,  C22C38/44 ,  C22C38/54 ,  C21D8/02 ,  C21D1/673 ,  C22C38/00 ,  C22C38/50 ,  C21D6/00 ,  C23C2/06 ,  C22C38/48 ,  C22C38/06 ,  C23C2/40 ,  B32B15/01 ,  C23C2/28 ,  C23C2/02 ,  C23C2/12 ,  C22C38/04

Abstract: A rolled steel sheet, for press hardening is provided, having a chemical composition where Ti/N>3.42, and the carbon, manganese, chromium and silicon contents satisfy: 2.6 C + Mn 5.3 + Cr 13 + Si 15 ≥ 1.1 % . The sheet has a nickel content Nisurf at any point of the steel in the vicinity of the surface over a depth Δ, such that: Nisurf>Ninom, Ninom denoting the nominal nickel content of the steel, and such that, Nimax denoting the maximum nickel content within Δ: ( Ni max + Ni nom ) 2 × ( Δ ) ≥ 0.6 , and such that: ( Ni max - Ni nom ) Δ ≥ 0.01 and the surface density of all of the particles Di , and the surface density of the particles D(>2 μm) larger than 2 micrometers satisfy, at least to a depth of 100 micrometers in the vicinity of the surface of said sheet: Di+6.75 D(>2 μm) 2 μm) being expressed as number of particles per square millimeter, and said particles denoting all the oxides, sulfides, and nitrides, either pure or combined such as oxysulfides and carbonitrides, present in the steel matrix.

公开(公告)号：US20180223409A1

公开(公告)日：2018-08-09

申请号：US15748033

申请日：2016-07-08

Applicant: ARCELORMITTAL

Inventor： Christian ALLELY ,  Tiago MACHADO AMORIM ,  Joost DE STRYCKER ,  Krista Godelieve Oscar VAN DEN BERGH

IPC: C23C2/12 ,  C23C2/40 ,  C22C21/10

Abstract: A steel sheet coated with a metallic coating is provided. The steel sheet includes from 2.0 to 24.0% by weight of zinc, from 7.1 to 12.0% by weight of silicon, optionally from 1.1 to 8.0% by weight of magnesium, and optionally additional elements chosen from Pb, Ni, Zr, or Hf, the content by weight of each additional element being less than 0.3% by weight, the balance being aluminum and optionally unavoidable impurities and residual elements. The ratio Al/Zn is above 2.9.

公开(公告)号：US20170198374A1

公开(公告)日：2017-07-13

申请号：US15314457

申请日：2015-05-28

Applicant: ARCELORMITTAL

Inventor： Christian ALLELY ,  Jacques PETIT JEAN

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

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：US20160168683A1

公开(公告)日：2016-06-16

申请号：US15052365

申请日：2016-02-24

Applicant: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO, S.L.

Inventor： Tiago MACHADO AMORIM ,  Joëlle RICHARD ,  Eric JACQUESON ,  Audrey LHERMEROULT ,  Pascale FELTIN ,  Jean-Michel LEMAIRE ,  Christian ALLELY ,  Luc DIEZ ,  Jean-Michel MATAIGNE

IPC: C23C2/06 ,  C22C18/04 ,  C23C28/02 ,  C23C22/78 ,  C23C22/82 ,  C23C2/26 ,  C23C22/06

CPC classification number: C23C2/06 ,  B05D7/14 ,  B05D2252/10 ,  B05D2350/65 ,  B32B15/013 ,  C22C18/00 ,  C22C18/04 ,  C23C2/26 ,  C23C2/28 ,  C23C22/06 ,  C23C22/78 ,  C23C22/82 ,  C23C28/00 ,  C23C28/021 ,  C23G1/10 ,  Y10T428/12542

Abstract: A method is provided. The method includes providing a steel substrate having two faces coated by dipping the substrate in a bath, altering layers of magnesium oxide or magnesium hydroxide formed on the outer surfaces of the metal coatings by applying mechanical forces, rinsing and drying the outer surfaces, applying a conversion solution on the outer surfaces and painting the outer surfaces of the metal coatings. A metal sheet is also provided.

Abstract translation: 提供了一种方法。 该方法包括提供具有通过将基底浸入浴中而被涂覆的两个表面的钢基材，通过施加机械力来改变形成在金属涂层的外表面上的氧化镁或氢氧化镁的层，漂洗和干燥外表面， 转化溶液在外表面上并喷涂金属涂层的外表面。 还提供金属片。

公开(公告)号：US20160010173A1

公开(公告)日：2016-01-14

申请号：US14858276

申请日：2015-09-18

Applicant: ARCELORMITTAL ,  THYSSENKRUPP STEEL EUROPE AG

Inventor： Colin SCOTT ,  Philippe CUGY ,  Christian ALLELY

IPC: C21D9/46 ,  C22C38/06 ,  C22C38/02 ,  C22C38/00 ,  C22C38/16 ,  C22C38/04 ,  C22C38/08 ,  C21D1/767 ,  C21D1/42 ,  C21D1/26 ,  C21D8/02 ,  C21D6/00 ,  C22C38/12

CPC classification number: C21D9/46 ,  B32B15/013 ,  C21D1/26 ,  C21D1/42 ,  C21D1/767 ,  C21D6/001 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0236 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C28/021 ,  C23C28/023 ,  C23C28/025 ,  C23C28/028 ,  Y02P10/253 ,  Y10T428/12799

Abstract: A process for fabricating a steel sheet is provided. The process includes soaking a steel sheet. The steel has a composition including iron, carbon, manganese, silicon, aluminum, sulfur, phosphorus and nitrogen and at least one metallic element X chosen among vanadium, titanium, niobium, molybdenum, and chromium. A quantity Xp of metallic element under the form of carbides, nitrides or carbonitrides is, by weight: 0.030%≦Vp≦0.40%; 0.030%≦Tip≦0.50%; 0.040%≦Nbp≦0.40%; 0.14%≦Mop≦0.44%; or 0.070%≦Crp≦0.6%. The soaking step occurs under a pure nitrogen or argon atmosphere with a dew point lower than −30° C. at a soaking temperature θ between 250 and 900° C. and with a dynamic circulation of a regenerated atmosphere.

Abstract translation: 提供一种钢板的制造方法。 该方法包括浸渍钢板。 该钢具有包含铁，碳，锰，硅，铝，硫，磷和氮的组成，以及选自钒，钛，铌，钼和铬中的至少一种金属元素X. 碳化物，氮化物或碳氮化物形式的金属元素的量Xp按重量计为：0.030％＆nlE; Vp＆nlE; 0.40％; 0.030％＆nlE; Tip＆nlE; 0.50％; 0.040％＆nlE; Nbp＆nlE; 0.40％; 0.14％＆nlE; Mop＆nlE; 0.44％; 或0.070％＆nlE; Crp＆nlE; 0.6％。 浸泡步骤在均热温度下露点低于-30℃的纯氮或氩气氛下进行; 在250和900℃之间，并且具有再生气氛的动态循环。

公开(公告)号：US20150329952A1

公开(公告)日：2015-11-19

申请号：US14397093

申请日：2013-04-25

Applicant: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO, S.L.

Inventor： Tiago MACHADO AMORIM ,  Joëlle RICHARD ,  Eric JACQUESON ,  Audrey LHERMEROULT ,  Pascale FELTIN ,  Jean-Michel LEMAIRE ,  Christian ALLELY ,  Luc DIEZ ,  Jean-Michel MATAIGNE

IPC: C23C2/06 ,  C23C22/06 ,  C22C18/04 ,  C23C22/82 ,  C23C28/00 ,  C22C18/00 ,  C23C2/26 ,  C23C22/78

CPC classification number: C23C2/06 ,  B05D7/14 ,  B05D2252/10 ,  B05D2350/65 ,  B32B15/013 ,  C22C18/00 ,  C22C18/04 ,  C23C2/26 ,  C23C2/28 ,  C23C22/06 ,  C23C22/78 ,  C23C22/82 ,  C23C28/00 ,  C23C28/021 ,  C23G1/10 ,  Y10T428/12542

Abstract: A method is provided. The method includes providing a steel substrate having two faces coated by dipping the substrate in a bath, altering layers of magnesium oxide or magnesium hydroxide formed on the outer surfaces of the metal coatings by applying an acid solution, optionally a conversion solution with a pH between 1 and 2, and/or mechanical forces, and painting the outer surfaces of the metal coatings. Additional methods and a metal sheet are also provided.

Abstract translation: 提供了一种方法。 该方法包括提供一种钢基材，其具有通过将基材浸渍在浴中而被涂覆的两个表面，通过施加酸溶液改变在金属涂层的外表面上形成的氧化镁或氢氧化镁的层，任选的转化溶液之间的pH介于 1和2，和/或机械力，并涂覆金属涂层的外表面。 还提供了附加方法和金属片。