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. 06, 1976
Filed:
Apr. 15, 1975
Applicant:
Inventors:
Kare M Folgero, Vasteras, SW;
Bengt Fredriksson, Vasteras, SW;
Lars-Gunnar Norberg, Hagfors, SW;
Karl-Erik Oberg, Borlange, SW;
Assignee:
Uddeholms Aktiebolag, Hagfors, SW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 12 ; 75 53 ;
Abstract
A method of treating molten metal in a converter having an induction heater the heating space of which opens into the lowermost portion of the converter compartment comprises injecting a mixture of a solid treating material in powder form with a carrier gas through a sidewall of the converter at a level only slightly above the bottom wall of the converter compartment. A tuyere through which the gas-powder mixture is injected is directed slightly downward and toward the region where the heating space of the induction heater opens into the converter compartment.