The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2023
Filed:
Nov. 02, 2021
Applicant:
Posco, Pohang-si, KR;
Inventors:
Seong-Woo Kim, Gwangyang-si, KR;
Jin-Keun Oh, Gwangyang-si, KR;
A-Ra Cho, Incheon, KR;
Hyeon-Jeong Shin, Incheon, KR;
Assignee:
POSCO CO., LTD, Pohang-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/01 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C23C 2/12 (2006.01); C23C 2/28 (2006.01); B21D 22/02 (2006.01); C21D 9/46 (2006.01); C22F 1/00 (2006.01); C22F 1/04 (2006.01); C21D 6/00 (2006.01); C23C 2/40 (2006.01); C23F 17/00 (2006.01); B21D 35/00 (2006.01); C23C 26/00 (2006.01); C23C 28/02 (2006.01); C23C 30/00 (2006.01); C23C 28/00 (2006.01); B32B 15/18 (2006.01); C23C 2/04 (2006.01); B32B 15/04 (2006.01); C23C 2/26 (2006.01); C23C 2/06 (2006.01); C22C 30/00 (2006.01); C22C 38/14 (2006.01); C22C 38/48 (2006.01); C22C 38/40 (2006.01); C22C 38/18 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/08 (2006.01); C22C 38/16 (2006.01); C22C 38/24 (2006.01); C22C 21/00 (2006.01); C22C 38/38 (2006.01); C22C 38/46 (2006.01); C22C 38/20 (2006.01); C22C 38/26 (2006.01); C22C 38/22 (2006.01); C22C 38/58 (2006.01); C22C 38/12 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01); B21D 37/16 (2006.01); B32B 5/20 (2006.01); B32B 5/18 (2006.01); C21D 9/52 (2006.01); C21D 1/26 (2006.01); C22C 38/60 (2006.01);
U.S. Cl.
CPC ...
B32B 15/012 (2013.01); B21D 22/02 (2013.01); B21D 22/022 (2013.01); B21D 35/00 (2013.01); B21D 35/005 (2013.01); B21D 37/16 (2013.01); B32B 5/18 (2013.01); B32B 5/20 (2013.01); B32B 15/01 (2013.01); B32B 15/011 (2013.01); B32B 15/013 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); C21D 1/26 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 9/46 (2013.01); C21D 9/52 (2013.01); C22C 21/00 (2013.01); C22C 30/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C22C 38/18 (2013.01); C22C 38/20 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); C22C 38/38 (2013.01); C22C 38/40 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/54 (2013.01); C22C 38/58 (2013.01); C22C 38/60 (2013.01); C22F 1/002 (2013.01); C22F 1/04 (2013.01); C23C 2/04 (2013.01); C23C 2/06 (2013.01); C23C 2/12 (2013.01); C23C 2/26 (2013.01); C23C 2/28 (2013.01); C23C 2/29 (2022.08); C23C 2/40 (2013.01); C23C 26/00 (2013.01); C23C 28/023 (2013.01); C23C 28/321 (2013.01); C23C 28/322 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); C23F 17/00 (2013.01); Y10T 428/12479 (2015.01); Y10T 428/12757 (2015.01); Y10T 428/12799 (2015.01); Y10T 428/12951 (2015.01); Y10T 428/12958 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12979 (2015.01); Y10T 428/12993 (2015.01);
Abstract
The present invention relates to a steel sheet for a hot press formed member having excellent coating adhesion, and a method for manufacturing the same. A steel sheet for hot press forming according to one aspect of the present invention is an aluminum alloy plated steel sheet, wherein an average Fe content in a plating layer may be 40 wt % or more, and a concentration gradient of a section having a Fe content of 45 wt % to 80 wt % in the plating layer may 7 wt %/μm or less of a concentration gradient at a section having an Fe content of 45% to 80% in the plating layer in a thickness direction from a surface of the plating layer according to a result of GDS analysis.