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:
Mar. 30, 1982
Filed:
Dec. 03, 1980
Applicant:
Inventors:
Karl Brotzmann, Sulzbach-Rosenberg, DE;
Hans G Fassbinder, Sulzbach-Rosenberg, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ; C21C / ;
U.S. Cl.
CPC ...
75 51 ; 75 52 ; 75 59 ; 75 60 ;
Abstract
A process for producing steel in a convertor in which energy is supplied by introducing carbon containing materials into a pig iron melt in said convertor and oxygen is supplied to said melt, and the supply of carbon containing materials to said melt is discontinued when the carbon in said melt is not lower than 2%, and thereafter completing the refining of said melt with oxygen whereby the nitrogen content of the finished steel produced is lower than it would have been had the supply of carbon to said melt been continued to the end of refining.