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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 9051654 B1

PDFFull Text
Date of Patent:
Jun. 09, 2015

Filed:

Oct. 22, 2010

Galvanized steel sheet

Applicants:

Takeshi Matsuda, Kawasaki, JP;

Akira Matsuzaki, Tokyo, JP;

Masato Sasaki, Fukuyama, JP;

Katsutoshi Takashima, Fukuyama, JP;

Satoru Ando, Chiba, JP;

Inventors:

Takeshi Matsuda, Kawasaki, JP;

Akira Matsuzaki, Tokyo, JP;

Masato Sasaki, Fukuyama, JP;

Katsutoshi Takashima, Fukuyama, JP;

Satoru Ando, Chiba, JP;

Assignee:

JFE STEEL CORPORATION, Tokyo, JP;

Attorney:

Young & Thompson

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
B32B 15/08 (2006.01); B32B 15/18 (2006.01); C23C 22/60 (2006.01); C23C 22/05 (2006.01); C23C 22/64 (2006.01); C23C 22/82 (2006.01); C09D 5/08 (2006.01); C23C 22/83 (2006.01); C23C 28/00 (2006.01);
U.S. Cl.
CPC ...
C23C 22/60 (2013.01); Y10T 428/12549 (2015.01); C23C 22/05 (2013.01); C23C 22/64 (2013.01); C23C 22/82 (2013.01); Y10T 428/12569 (2015.01); Y10T 428/12556 (2015.01); Y10T 428/12799 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/265 (2015.01); Y10T 428/12979 (2015.01); C09D 5/084 (2013.01); C23C 22/83 (2013.01); C23C 28/00 (2013.01); C23C 2222/20 (2013.01);
Abstract

There is provided a galvanized steel sheet that has various properties such as corrosion resistance and adhesion and allows for high conductivity at a low contact pressure. A first layer film is formed by applying a surface treatment solution having a pH of 8 to 10 onto the surface of the galvanized steel sheet and drying the surface treatment solution by heating, the surface treatment solution containing a water-soluble zirconium compound, a tetraalkoxysilane, an epoxy group-containing compound, a chelating agent, a silane coupling agent, vanadic acid, and a metal compound in a specific ratio. Subsequently, a second layer film is formed by applying a surface treatment solution containing an organic resin onto the surface of the first layer film and drying the surface treatment solution by heating.

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