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.:
Date of Patent:
Oct. 04, 2011
Filed:
Oct. 27, 2003
Kazuhiko Honda, Kimitsu, JP;
Hidetoshi Hatanaka, Kimitsu, JP;
Hajime Onozawa, Kimitsu, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
The present invention provides a highly corrosion-resistant plated steel sheet that can achieve excellent surface smoothness and formability and, according to the process of the present invention, a hot-dip galvanized steel product excellent in surface smoothness and formability having on the steel product surface a zinc alloy plating layer composed of 4 to 22% by mass of Al, 1 to 5% by mass of Mg, 0.000001 to 0.1% by mass of Ti, 0.000001 to 0.5% by mass of Si and the balance of Zn and unavoidable impurities, the plating layer of the plated steel product having a metal structure in which an [MgSi phase], an [Al phase], a [ZnMg phase] and a [Zn phase] are present in a mixture in the matrix of an [Al/Zn/ZnMg ternary eutectic structure], and the plating layer containing a Ti—Al base intermetallic compound in the [Al phase] and/or the [ZnMg phase] and/or the [Zn phase], is produced.