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. 13, 1981
Filed:
Oct. 03, 1979
Applicant:
Inventors:
Istvan Tamas, Budapest, HU;
Lajos Tamas, Budapest, HU;
Gyula Kiss, Budapest, HU;
Jozsef Kiss, Budapest, HU;
Antal Kaldor, Budapest, HU;
Assignee:
Vasipari Kutato Intezet, Budapest, HU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 49 ; 75 58 ; 75 60 ;
Abstract
A process for reducing the inclusion content of steels and refining their structure which comprises the steps of subjecting molten steel containing inclusions to a pressure of at least 1 atm; removing inclusions from the molten steel by introducing therein at said pressure an inclusion-removing alloy containing calcium or magnesium; and thereafter applying vacuum to the molten steel to evaporate residual calcium or magnesium from the steel.