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:
Apr. 19, 2016
Filed:
Mar. 31, 2010
Yusuke Fushiwaki, Hiroshima, JP;
Yoshiharu Sugimoto, Chiba, JP;
Masahiro Yoshida, Chiba, JP;
Yoshitsugu Suzuki, Hiroshima, JP;
Yusuke Fushiwaki, Hiroshima, JP;
Yoshiharu Sugimoto, Chiba, JP;
Masahiro Yoshida, Chiba, JP;
Yoshitsugu Suzuki, Hiroshima, JP;
JFE Steel Corporation, , JP;
Abstract
A method for producing a high-strength hot-dip galvanized steel sheet includes a steel sheet containing, in percent by mass, 0.01% to 0.18% of C, 0.02% to 2.0% of Si, 1.0% to 3.0% of Mn, 0.001% to 1.0% of Al, 0.005% to 0.060% of P, 0.01% or less of S, and the balance being Fe and incidental impurities, and a galvanized coating layer on each surface of the steel sheet with a coating weight of 20 to 120 g/mper surface, in which, when the steel sheet is subjected to annealing and a hot-dip galvanizing treatment in a continuous hot-dip galvanizing line, the dew point of the atmosphere is controlled to −40° C. or lower in the annealing furnace temperature range of 750° C. or higher.