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:
Jan. 16, 2018
Filed:
Dec. 08, 2015
Applicant:
Posco, Pohang-si, KR;
Inventors:
Assignee:
POSCO, Pohang-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C 7/06 (2006.01); C21D 3/04 (2006.01); C22C 38/58 (2006.01); C22C 38/42 (2006.01); C22C 38/02 (2006.01); C22C 38/00 (2006.01); C21C 5/00 (2006.01); C21C 7/00 (2006.01); C21C 7/064 (2006.01); C21C 7/068 (2006.01); B22D 11/00 (2006.01); B22D 11/06 (2006.01);
U.S. Cl.
CPC ...
C21D 3/04 (2013.01); C21C 5/005 (2013.01); C21C 7/0075 (2013.01); C21C 7/0087 (2013.01); C21C 7/06 (2013.01); C21C 7/064 (2013.01); C21C 7/0685 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/42 (2013.01); C22C 38/58 (2013.01); B22D 11/002 (2013.01); B22D 11/0622 (2013.01);
Abstract
There is provided a method for manufacturing a duplex stainless steel sheet having reduced inclusions through argon oxygen decarburization (AOD), ladle treatment (LT), and twin roll strip casting. The method includes deoxidizing molten steel using silicon (Si) during the AOD, wherein the molten steel has a silicon (Si) content of 0.55 wt % to 0.75 wt % at the end of the AOD.