Patent search cpc:"C23C2/0224" Page 1

1.

发明授权
HIGH STRENGTH STEEL SHEET, HIGH STRENGTH MEMBER, AND METHODS FOR MANUFACTURING THE SAME 有权

公开(公告)号：EP3981892B1

公开(公告)日：2024-06-19

申请号：EP20848649.8

申请日：2020-07-29

IPC: C21D8/02 , C23C2/06 , C21D9/46 , C22C38/02 , C22C38/50 , C22C38/48 , C22C38/28 , C22C38/26 , C22C38/12 , C22C38/58 , C22C38/06 , C22C38/04 , C23C2/28 , C23C2/40 , C22C38/14 , C23C2/02 , C21D8/04 , C22C38/00

CPC classification number: C22C38/00 , C22C38/14 , C22C38/58 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/26 , C22C38/28 , C22C38/48 , C22C38/50 , C21D8/0226 , C21D8/0273 , C21D8/0426 , C21D8/0473 , C23C2/06 , C21D8/0236 , C21D8/0263 , C21D8/0463 , C21D8/0436 , C23C2/28 , C23C2/40 , C23C2/0224

2.

发明授权
HIGH-STRENGTH GALVANIZED STEEL SHEET, AND METHOD FOR MANUFACTURING SAME 有权转让

公开(公告)号：EP3719157B1

公开(公告)日：2024-05-01

申请号：EP18884774.3

申请日：2018-08-20

IPC: C21D9/46 , C22C38/06 , C22C38/60 , C21D1/76 , C21D8/02 , C21D9/56 , C22C38/02 , C22C38/04 , C23C2/28 , C23C2/06 , C22C38/08 , C22C38/12 , C22C38/14 , C23C2/40 , C22C38/16 , C22C38/38 , C23C2/02 , C23C2/26

CPC classification number: C21D9/46 , C22C38/06 , C22C38/60 , C23C2/06 , C21D1/76 , C21D8/0226 , C21D8/0236 , C21D8/0242 , C21D8/0247 , C21D9/561 , C21D2211/00120130101 , C21D2211/00220130101 , C21D2211/00520130101 , C21D2211/00820130101 , C22C38/02 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/38 , C23C2/02 , C23C2/28 , C23C2/40 , C23C2/261 , C23C2/29 , C23C2/024 , C23C2/26 , C23C2/0224

3.

发明授权
HOT-ROLLED AND COATED STEEL SHEET FOR HOT-STAMPING, HOT-STAMPED COATED STEEL PART AND METHODS FOR MANUFACTURING THE SAME 有权

公开(公告)号：EP3901321B1

公开(公告)日：2024-10-02

申请号：EP21174102.0

申请日：2017-11-23

IPC: C23C2/40 , C23C2/12 , C23C2/26 , C23C2/02 , C22C38/58 , C22C38/54 , C22C38/50 , C22C38/48 , C22C38/44 , C22C38/06 , B32B15/01 , B21D22/02 , C23C2/06 , C22C18/00 , C21D8/02 , C22C38/04 , C22C38/02 , C22C21/02 , C22C21/10 , C22C18/04

CPC classification number: B21D22/022 , B32B15/012 , B32B15/013 , C21D8/0226 , C23C2/06 , C23C2/12 , C23C2/26 , C23C2/40 , C22C18/04 , C22C21/02 , C22C21/10 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58 , C21D2211/00120130101 , C21D2211/00520130101 , C21D2211/00920130101 , C22C18/00 , C21D8/0263 , C21D8/0278 , B23K2103/0420180801 , C21D1/673 , C21D8/005 , C21D9/0068 , C23C2/024 , C23C2/28 , C23C2/0224 , C23C2/02

4.

发明公开
PLATED STEEL SHEET 审中-实审

公开(公告)号：EP4414475A1

公开(公告)日：2024-08-14

申请号：EP23747032.3

申请日：2023-01-26

Applicant: NIPPON STEEL CORPORATION

Inventor： MITSUNOBU, Takuya , URANAKA, Masaaki , MATSUBA, Masahiro , NAKAMURA, Toyomitsu

IPC: C23C2/06 , B23K35/30 , C22C18/04 , C22C21/10 , C22C38/00 , C22C38/04 , C23C2/12 , C23C2/26 , C23C2/02 , B32B15/01 , C23C2/20 , C23C2/28 , C23C30/00 , C23C2/40 , C22C18/00 , C22C21/06

CPC classification number: B23K35/30 , C22C18/04 , C22C21/10 , C22C38/00 , C22C38/04 , C23C2/06 , C23C2/12 , C23C2/26 , C23C2/0224 , C23C2/29 , C23C2/20 , C23C30/00 , C23C2/40 , C22C21/06 , C22C18/00 , B32B15/012 , B32B15/013 , C22C38/02 , C22C38/16

Abstract: To more reliably suppress LME and blowhole formation while maintaining excellent corrosion resistance.
A plated steel sheet according to the present invention, includes: a steel sheet as a base material; a plating layer located on at least part of a surface of the steel sheet; and an oxide layer located on a surface of the plating layer, where a chemical composition of the plating layer is made up of prescribed components, and Zn and impurities as the balance, and when a position at a depth of 5 nm from an uppermost surface of the oxide layer is observed by X-ray photoelectron spectroscopy (XPS), a value of an intensity ratio ([Al-O] + [Mg-O])/[Zn-O]) calculated from intensity of peaks respectively attributed to an Al-O bond, an Mg-O bond, and a Zn-O bond is 5.0 or more.

5.

发明公开
METHOD FOR PRODUCING HOT-DIP GALVANIZED STEEL SHEET 审中-实审

公开(公告)号：EP4353861A1

公开(公告)日：2024-04-17

申请号：EP22841845.5

申请日：2022-06-09

Applicant: JFE Steel Corporation

Inventor： TAKEDA, Gentaro , TAKAHASHI, Hideyuki , AOYAMA, Mai , WATANABE, Maiko , EHASHI, Tatsuya

IPC: C23C2/02 , C21D9/46 , C21D9/56 , C22C38/00 , C22C38/02 , C22C38/04 , C23C2/06 , C23C2/40 , C23C2/00

CPC classification number: C22C38/00 , C23C2/02 , C22C38/04 , C23C2/06 , C22C38/02 , C21D9/56 , C21D9/46 , C23C2/40 , C23C2/022 , C23C2/0224 , C23C2/003 , C23C2/0038

Abstract: Provided is a method for manufacturing a hot-dip galvanized steel sheet with which it is possible to achieve high coating adhesiveness and good coating appearance, even in the case where a hot-dip galvanizing treatment is performed on a steel sheet containing Si in an amount of 0.2 mass% or more.
When a hot-dip galvanizing treatment is performed on a steel sheet containing Si in an amount of 0.2 mass% or more by using a continuous hot-dip galvanizing apparatus including an annealing furnace in which a heating zone, a soaking zone, and a cooling zone are arranged in this order, a snout adjacent to the cooling zone, and hot-dip galvanizing equipment, a humidified nitrogen-hydrogen gas mixture containing moisture in such a manner that expression (1) below is satisfied is supplied into a region on the downstream side of the soaking zone, gas nozzles are arranged over the entire perimeter of an inner wall of the snout, nitrogen gas or a nitrogen-hydrogen gas mixture is supplied through the gas nozzles downward along the inner wall, and the dew point in the snout is controlled to be - 50°C to -35°C: 158

6.

发明授权
HIGH STRENGTH COATED STEEL SHEET HAVING IMPROVED STRENGTH AND FORMABILITY 有权

公开(公告)号：EP3722445B1

公开(公告)日：2024-08-28

申请号：EP20177321.5

申请日：2015-07-03

IPC: C21D1/19 , B32B15/01 , C22C38/14 , C22C38/12 , C22C38/06 , C22C38/04 , C22C38/02 , C21D9/48 , C21D8/04 , C21D1/26 , C23C2/02 , C23C2/06 , C23C2/28

CPC classification number: C22C38/02 , C22C38/04 , C21D2211/00120130101 , C21D2211/00220130101 , C21D2211/00820130101 , C22C38/06 , C22C38/12 , C22C38/14 , C21D1/19 , C21D1/26 , C21D8/0473 , C21D9/48 , B32B15/013 , C23C2/06 , C23C2/02 , C23C2/29 , C23C2/024 , C23C2/0224 , C23C2/285

7.

发明公开
HOT-ROLLED AND COATED STEEL SHEET FOR HOT-STAMPING, HOT-STAMPED COATED STEEL PART AND METHODS FOR MANUFACTURING THE SAME 审中-实审

公开(公告)号：EP4417724A2

公开(公告)日：2024-08-21

申请号：EP24185892.7

申请日：2017-11-23

Applicant: ArcelorMittal

Inventor： HENRION, Thomas , JACOLOT, Ronan , BEAUVAIS, Martin

IPC: C22C18/04

CPC classification number: B21D22/022 , B32B15/012 , B32B15/013 , C21D8/0226 , C23C2/06 , C23C2/12 , C23C2/26 , C23C2/40 , C22C18/04 , C22C21/02 , C22C21/10 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58 , C21D2211/00120130101 , C21D2211/00520130101 , C21D2211/00920130101 , C22C18/00 , C21D8/0263 , C21D8/0278 , B23K2103/0420180801 , C21D1/673 , C21D8/005 , C21D9/0068 , C23C2/024 , C23C2/28 , C23C2/0224 , C23C2/02

Abstract: A method for manufacturing a hot-rolled and coated steel sheet having a thickness between 1.8 mm and 5 mm, comprising providing a semi-product having a composition comprising: 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 fy 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 comprising a hot-rolled steel sheet and an Al or an Al alloy coating, having a thickness comprised between 20 and 33 µm, on each side of the hot-rolled steel sheet.