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:
Dec. 06, 2022
Filed:
Feb. 08, 2019
Applicant:
Tata Steel Ijmuiden B.v., Velsen-Noord, NL;
Inventor:
Radhakanta Rana, Alkmaar, NL;
Assignee:
TATA STEEL IJMUIDEN B.V., Velsen-Noord, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 6/00 (2006.01); B32B 15/01 (2006.01); C21D 1/18 (2006.01); C21D 1/673 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/38 (2006.01);
U.S. Cl.
CPC ...
C21D 6/008 (2013.01); B32B 15/013 (2013.01); C21D 1/185 (2013.01); C21D 1/673 (2013.01); C21D 6/002 (2013.01); C21D 6/005 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/06 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/38 (2013.01); C21D 2211/001 (2013.01); C21D 2211/005 (2013.01); C21D 2211/008 (2013.01);
Abstract
A method of shaping an article from a zinc or zinc alloy coated steel blank, including the steps of: a) providing a blank of the zinc or zinc alloy coated steel; b) reheating of the blank obtained in step a) to a reheating temperature Tin the range Ac3-200° C. of the steel; c) soaking the blank for a time up to 3 minutes at the reheating temperature T; d) shaping the article in a press; and e) cooling the article. The steel includes (in wt. %) C: 0.01-0.2; Mn: 3.1-9.0; Al: 0.5-3.0; and optionally further alloying elements selected from Si, Cr, V, Nb, Ti and Mo; inevitable impurities and the balance is Fe.