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:
Oct. 16, 1984
Filed:
Jan. 06, 1983
Applicant:
Inventor:
Balkishan Agrawal, Ossining, NY (US);
Assignee:
Union Carbide Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 51 ; 75 52 ; 75 58 ;
Abstract
Calcium carbide is efficiently and safely employed to provide heat to a steel melt during subsurface refining by providing the steel melt with acidic component(s) and/or oxidizable component(s), which when oxidized will yield acidic components, in a amount sufficient to flux the products of calcium carbide oxidation, while insuring that the calcium carbide does not reside in the bath for more 5 minutes prior to the initiation of its oxidation.