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. 03, 2009
Filed:
Oct. 11, 2006
Walter Blejde, Brownsburg, IN (US);
Rama Ballav Mahapatra, Brighton-le-Sands, AU;
David Sosinsky, Carmel, IN (US);
Mark Schlichting, Crawfordsville, IN (US);
Walter Blejde, Brownsburg, IN (US);
Rama Ballav Mahapatra, Brighton-le-Sands, AU;
David Sosinsky, Carmel, IN (US);
Mark Schlichting, Crawfordsville, IN (US);
Nucor Corporation, Charlotte, NC (US);
Abstract
A method of controlling heat flux between the casting pool and the surfaces of the casting roll in a strip steel casting process includes controlling the concentration of nitrogen in the steel melt. The concentration of nitrogen may be controlled to achieve an operational heat transfer to the casting roll. The beat flux to the casting rolls may be controlled by maintaining the sum of partial pressures calculated from the nitrogen and hydrogen concentrations in the casting pool below 1.15 atmospheres. Decreasing the concentration of nitrogen can increase heat flux at the casting rolls.