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:
Feb. 28, 2006
Filed:
Dec. 21, 2001
Applicants:
Maria-lynn Turi, Stoney Creek, CA;
Stephen Lynes, Burlington, CA;
Inventors:
Maria-Lynn Turi, Stoney Creek, CA;
Stephen Lynes, Burlington, CA;
Assignee:
Dofasco Inc., Hamilton, CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D 8/10 (2006.01); C21D 7/13 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of producing hot rolled steel having improved formability and minimal silver formation comprises the addition of Titanium and Boron to the molten steel to combine with and remove the free nitrogen prior to rolling. Titanium is added so that the amount of nitrogen remaining after Ti addition is about 0.0005 wt % to about 0.0025 wt % and Boron is added to remove the balance of the nitrogen by forming BN.