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:
Jul. 16, 1985
Filed:
Apr. 26, 1984
Applicant:
Inventor:
Joseph W Tommaney, Buffalo Township, Butler County, PA (US);
Assignee:
Allegheny Ludlum Steel Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ; C21D / ;
U.S. Cl.
CPC ...
75 5912 ; 75 5929 ; 75 593 ; 75 5931 ; 266 78 ;
Abstract
A system and method is provided for refining molten metal in a top-blown vessel, particularly, by removal of the carbon content. The system includes various means for selecting, regulating the composition and controlling the rate of flow of the top-blown gases. The system further includes various means for introducing an inert gas from beneath the molten bath surface during top blowing and regulating the composition and controlling the rate of flow of the inert gas as a function of the top-blown gas composition and flow rate. A method for introducing the gases is also provided.