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. 26, 2021
Filed:
Mar. 06, 2014
Bluescope Steel Limited, Melbourne, AU;
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Nippon Steel Coated Sheet Corporation, Tokyo, JP;
Wayne Andrew Renshaw, Unanderra, AU;
Cat Tu, Balgownie, AU;
Joe Williams, Tarrawanna, AU;
Jason Hodges, East Corrimal, AU;
Shiro Fujii, Tokyo, JP;
Nobuyuki Shimoda, Tokyo, JP;
Shuichi Kondo, Tokyo, JP;
Takashi Hirasawa, Tokyo, JP;
Bluescope Steel Limited, Melbourne, AU;
Nippon Steel Corporation, Tokyo, JP;
Nippon Steel Coated Sheet Corporation, Tokyo, JP;
Abstract
A method of forming an Al—Zn—Si—Mg alloy coating on a steel strip includes dipping steel strip into a bath of molten Al—Zn—Si—Mg alloy and forming a coating of the alloy on exposed surfaces of the steel strip. The method also includes controlling conditions in the molten coating bath and downstream of the coating bath so that there is a uniform Al/Zn ratio across the surface of the coating formed on the steel strip. An Al—Zn—Mg—Si coated steel strip includes a uniform Al/Zn ratio on the surface or the outermost 1-2 μm of the Al—Zn—Si—Mg alloy coating.