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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 9970116 B1

PDFFull Text
Date of Patent:
May. 15, 2018

Filed:

Dec. 10, 2014

Al-plated steel sheet used for hot pressing and method for manufacturing al-plated steel sheet used for hot pressing

Applicant:

Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;

Inventors:

Soshi Fujita, Tokyo, JP;

Shintaro Yamanaka, Tokyo, JP;

Jun Maki, Tokyo, JP;

Hiroki Fujimoto, Tokyo, JP;

Hatsuhiko Oikawa, Tokyo, JP;

Hideaki Irikawa, Tokyo, JP;

Assignee:

NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Seth Dumbris

Int. Cl.
CPC ...
B32B 15/04 (2006.01); C23C 22/66 (2006.01); C23C 2/12 (2006.01); C23C 2/28 (2006.01); C23C 2/40 (2006.01); C22C 21/02 (2006.01); C22C 38/00 (2006.01); C22C 38/38 (2006.01); B21D 22/02 (2006.01); B21D 35/00 (2006.01); C22C 21/00 (2006.01); B32B 15/01 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/18 (2006.01); C23C 2/20 (2006.01);
U.S. Cl.
CPC ...
C23C 22/66 (2013.01); B21D 22/022 (2013.01); B21D 35/005 (2013.01); B32B 15/012 (2013.01); C22C 21/00 (2013.01); C22C 21/02 (2013.01); C22C 38/00 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/18 (2013.01); C22C 38/38 (2013.01); C23C 2/12 (2013.01); C23C 2/20 (2013.01); C23C 2/28 (2013.01); C23C 2/40 (2013.01); Y10T 428/12611 (2015.01); Y10T 428/12757 (2015.01);
Abstract

Provided is an Al-plated steel sheet used for hot pressing that has excellent lubricity in hot state, corrosion resistance after paint coating, and spot weldability. An Al-plated steel sheet used for hot pressing includes: a steel sheet; an Al plating layer formed on one surface or both surfaces of the steel sheet; and a surface coating layer formed on the Al plating layer. The surface coating layer contains a zinc compound, and the zinc compound is deposited on the Al-plated steel sheet in an amount of equal to or greater than 0.3 g/mand equal to or less than 1.5 g/mas an amount of metallic zinc per one surface, and a zinc deposition amount in any continuous 1 mmregion is 1.5 g/mor less.

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