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:
Jun. 13, 2017

Filed:

Jun. 06, 2012
Applicants:

Yoichi Makimizu, Hiroshima, JP;

Yoshitsugu Suzuki, Hiroshima, JP;

Hideki Nagano, Kanagawa, JP;

Shinjiro Kaneko, Chiba, JP;

Inventors:

Yoichi Makimizu, Hiroshima, JP;

Yoshitsugu Suzuki, Hiroshima, JP;

Hideki Nagano, Kanagawa, JP;

Shinjiro Kaneko, Chiba, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 2/02 (2006.01); C23C 2/06 (2006.01); C23C 2/28 (2006.01); C21D 8/04 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/34 (2006.01); C22C 38/38 (2006.01); C21D 9/48 (2006.01);
U.S. Cl.
CPC ...
C23C 2/02 (2013.01); C21D 8/0473 (2013.01); C21D 8/0478 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/34 (2013.01); C22C 38/38 (2013.01); C23C 2/06 (2013.01); C23C 2/28 (2013.01); C21D 9/48 (2013.01); Y10T 428/12799 (2015.01);
Abstract

A high strength galvanized steel sheet excellent in coating adhesiveness is made from a base material that is a high strength steel sheet containing Si, Mn, and Cr. A method includes performing an oxidation treatment on steel containing Si, Mn, and Cr in an oxidation furnace under the condition that a selected exit temperature T, reduction annealing and a galvanizing treatment, or optionally, further an alloying treatment under conditions that heating is performed at a temperature of 460° C. or higher and 600° C. or lower for an alloying treatment time of 10 seconds or more and 60 seconds or less.


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