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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 9771636 B1

PDFFull Text
Date of Patent:
Sep. 26, 2017

Filed:

Jul. 05, 2016

Method of production of an aluminum plated steel sheet having excellent corrosion resistance with respect to alcohol or mixed gasoline of same and appearance

Applicant:

Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;

Inventors:

Yasuto Goto, Tokyo, JP;

Masao Kurosaki, Tokyo, JP;

Shinichi Yamaguchi, Tokyo, JP;

Jun Maki, Tokyo, JP;

Assignee:

NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
C22C 21/08 (2006.01); C22C 21/02 (2006.01); C23C 2/26 (2006.01); B32B 15/01 (2006.01); C23C 2/28 (2006.01); C22C 21/04 (2006.01); C23C 2/40 (2006.01); C23C 30/00 (2006.01); C23C 26/02 (2006.01); C23C 2/00 (2006.01); C23C 2/12 (2006.01); C22C 21/06 (2006.01);
U.S. Cl.
CPC ...
C22C 21/08 (2013.01); B32B 15/012 (2013.01); C22C 21/02 (2013.01); C22C 21/04 (2013.01); C22C 21/06 (2013.01); C23C 2/00 (2013.01); C23C 2/12 (2013.01); C23C 2/26 (2013.01); C23C 2/28 (2013.01); C23C 2/40 (2013.01); C23C 26/02 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); Y10T 428/1275 (2015.01); Y10T 428/12757 (2015.01); Y10T 428/12764 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12979 (2015.01); Y10T 428/2495 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/24975 (2015.01); Y10T 428/264 (2015.01); Y10T 428/265 (2015.01);
Abstract

The present invention relates to aluminum plated steel sheet which does not require coating after plating and is high in production flexibility enabling application of conventional production processes as they are or exhibits excellent corrosion resistance to flex fuels and further is excellent in appearance and to fuel tanks characterized by being produced using the steel sheet. The Si, Mg, Ca, and Ti ingredients in the aluminum plating layer are defined and the cooling method after hot dip aluminum coating is controlled to make MgSi particles with a long axis of 10 μm or less and an aspect ratio of 1 to 3 finely disperse in the plating layer. Due to the MgSi particles, it is possible to give an excellent corrosion resistance to flex fuels and suppress the deterioration in appearance due to MgO.

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