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 9321077 B1

Date of Patent:

Apr. 26, 2016

Filed:

Dec. 27, 2011

Plating method

Applicants:

Hyun-ju Jeong, Pohang-si, KR;

Rho-bum Park, Gwangyang-si, KR;

Yeong-seob Kueon, Pohang-si, KR;

Hyeong-jun Huh, Pohang-si, KR;

Jin-gun Jang, Pohang-si, KR;

Inventors:

Hyun-Ju Jeong, Pohang-si, KR;

Rho-Bum Park, Gwangyang-si, KR;

Yeong-Seob Kueon, Pohang-si, KR;

Hyeong-Jun Huh, Pohang-si, KR;

Jin-Gun Jang, Pohang-si, KR;

Assignee:

POSCO, Pohang-Si, KR;

Attorney:

The Webb Law Firm

Primary Examiner:

Michael E La Villa

Int. Cl.

CPC ...

B05D 3/14 (2006.01); B32B 15/01 (2006.01); C21D 1/38 (2006.01); C21D 8/04 (2006.01); C21D 9/46 (2006.01); C21D 9/56 (2006.01); C21D 11/00 (2006.01); C23C 2/02 (2006.01); C23C 2/00 (2006.01); C23C 2/06 (2006.01); C23C 2/40 (2006.01); C21D 1/09 (2006.01); C21D 1/34 (2006.01);

U.S. Cl.

CPC ...

B05D 3/142 (2013.01); B32B 15/013 (2013.01); C21D 1/38 (2013.01); C21D 8/0478 (2013.01); C21D 9/46 (2013.01); C21D 9/56 (2013.01); C21D 11/00 (2013.01); C23C 2/003 (2013.01); C23C 2/02 (2013.01); C23C 2/06 (2013.01); C23C 2/40 (2013.01); C21D 1/09 (2013.01); C21D 1/34 (2013.01); Y10T 428/12799 (2015.01);

Abstract

There is provided a method and apparatus for plating high strength steel such as advanced high strength steel (AHSS) after irradiating the high strength steel with at least one of laser light and plasma to remove Si/Mn/Al oxides from the surface of the high strength steel, modify the surface of the high strength steel, or make the surface of the high strength steel suitable for a post process such as a zinc plating process. For this, a plating method includes heating high strength steel; treating a surface of the high strength steel with plasma to remove at least one of a Mn oxide, an Al oxide, and an Si oxide formed on the surface of the high strength steel during the heating of the high strength steel; and plating the surface-treated high strength steel.

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