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:
Aug. 21, 2018
Filed:
Dec. 16, 2015
Applicant:
Posco, Pohang, KR;
Inventors:
Assignee:
POSCO, Pohang-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 8/02 (2006.01); C23C 12/02 (2006.01); C21D 9/46 (2006.01); C21D 1/26 (2006.01); C21D 9/00 (2006.01); C21D 9/54 (2006.01); C23C 2/02 (2006.01); C23C 2/26 (2006.01); C23C 2/28 (2006.01); C23C 26/00 (2006.01); C21D 1/34 (2006.01); C21D 1/42 (2006.01); C21D 1/613 (2006.01); C21D 1/84 (2006.01); C21D 6/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/60 (2006.01); C23C 2/06 (2006.01); C23C 2/12 (2006.01); C21D 1/00 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); C21D 1/26 (2013.01); C21D 1/34 (2013.01); C21D 1/42 (2013.01); C21D 1/613 (2013.01); C21D 1/84 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/02 (2013.01); C21D 9/005 (2013.01); C21D 9/54 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/60 (2013.01); C23C 2/02 (2013.01); C23C 2/06 (2013.01); C23C 2/12 (2013.01); C23C 2/26 (2013.01); C23C 2/28 (2013.01); C23C 26/00 (2013.01); Y02P 10/253 (2015.11);
Abstract
Provided is a method for producing plated steel sheet by means of an annealing device which includes at least one section and in which the at least one section is filled with a gas constituting a non-reducing atmosphere or a weakly reducing atmosphere to substantially improve the quality of plating onto hot-dipped steel sheet, including the plating properties, alloying properties, anti-pickup properties, plating adhesion properties, anti-flaking properties, anti-cratering properties and anti-ash properties, by using prior-art annealing equipment and heat-treatment cycle without any additional oxidation-reduction heat treatment process or large quantities of high-cost alloying elements.