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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.:

US 11248287 B1

PDFFull Text
Date of Patent:
Feb. 15, 2022

Filed:

Jan. 27, 2020

Zinc alloy plated steel material having excellent weldability and processed-part corrosion resistance

Applicant:

Posco, Pohang-si, KR;

Inventors:

Min-Suk Oh, Gwangyang-si, KR;

Sang-Heon Kim, Gwangyang-si, KR;

Tae-Chul Kim, Gwangyang-si, KR;

Jong-Sang Kim, Gwangyang-si, KR;

Hyun-Chu Yun, Seoul, KR;

Bong-Hwan Yoo, Gwangyang-si, KR;

Il-Ryoung Sohn, Gwangyang-si, KR;

Assignee:

POSCO, Pohang-si, KR;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
B32B 15/01 (2006.01); B32B 15/04 (2006.01); B32B 15/18 (2006.01); C22C 38/04 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 18/04 (2006.01); C23C 30/00 (2006.01); C23C 28/02 (2006.01); C23C 2/06 (2006.01); C23C 2/40 (2006.01); C23C 2/16 (2006.01); C23C 2/28 (2006.01); C23C 2/02 (2006.01); C22C 18/00 (2006.01); C23C 2/26 (2006.01); C22C 38/08 (2006.01);
U.S. Cl.
CPC ...
C23C 2/06 (2013.01); B32B 15/012 (2013.01); B32B 15/013 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); C22C 18/00 (2013.01); C22C 18/04 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C23C 2/02 (2013.01); C23C 2/16 (2013.01); C23C 2/26 (2013.01); C23C 2/28 (2013.01); C23C 2/40 (2013.01); C23C 28/02 (2013.01); C23C 28/021 (2013.01); C23C 28/023 (2013.01); C23C 28/025 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); Y10T 428/12451 (2015.01); Y10T 428/12472 (2015.01); Y10T 428/12757 (2015.01); Y10T 428/12792 (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); Y10T 428/2495 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/24975 (2015.01); Y10T 428/26 (2015.01); Y10T 428/263 (2015.01); Y10T 428/264 (2015.01); Y10T 428/265 (2015.01);
Abstract

Zn alloy plated steel material having excellent weldability and processed-part corrosion resistance and a method for production of Zn alloy plated steel material are provided. In the Zn alloy plated steel material comprising base steel material and a Zn alloy plating layer, the Zn alloy plating layer includes, by wt %, Al: 0.1-5.0%, Mg: 0.1-5.0%, as well as a remainder of Zn and inevitable impurities. The Zn alloy plated steel material includes a lower interface layer and an upper interface layer between the base steel material and the Zn alloy plating layer, wherein the lower interface layer is formed on the base steel material and has a dense structure, and the upper interface layer is formed on the lower interface layer and has a network-type or island-type structure.

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