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.

Date of Patent:
Apr. 05, 2016

Filed:

Dec. 26, 2011
Applicants:

Sang-heon Kim, Gwangyang-si, KR;

Young-sool Jin, Gwangyang-si, KR;

Min-suk OH, Gwangyang-si, KR;

Su-young Kim, Gwangyang-si, KR;

Bong-hwan Yoo, Gwangyang-si, KR;

Inventors:

Sang-Heon Kim, Gwangyang-si, KR;

Young-Sool Jin, Gwangyang-si, KR;

Min-Suk Oh, Gwangyang-si, KR;

Su-Young Kim, Gwangyang-si, KR;

Bong-Hwan Yoo, Gwangyang-si, KR;

Assignee:

POSCO, Pohang-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/01 (2006.01); C23C 2/28 (2006.01); C23C 2/06 (2006.01); C23C 2/20 (2006.01); C23C 2/26 (2006.01);
U.S. Cl.
CPC ...
B32B 15/013 (2013.01); C23C 2/06 (2013.01); C23C 2/20 (2013.01); C23C 2/26 (2013.01); C23C 2/28 (2013.01); Y10T 428/12535 (2015.01); Y10T 428/12799 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12979 (2015.01); Y10T 428/12993 (2015.01); Y10T 428/27 (2015.01);
Abstract

Provided is a hot dip zinc (Zn) alloy plated steel sheet having excellent corrosion resistance and surface qualities, and a method of manufacturing the same. For this purpose, provided is a high corrosion resistant hot dip Zn alloy plated steel sheet which includes an underlying steel sheet and a hot dip Zn alloy plating layer, wherein a composition of the hot dip Zn alloy plating layer includes 1 to 3 wt % of aluminum (Al), 1.5 to 4.0 wt % of magnesium (Mg), and Zn and unavoidable impurities as a remainder, in which Al+Mg is in a range of 2.5 to 7.0 wt % and Al: (Al+Mg) ratio is in a range of 0.38 to 0.48, and a method of manufacturing the high corrosion resistant hot dip Zn alloy plated steel sheet.


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