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:
Aug. 16, 2011
Filed:
Jun. 25, 2010
Lutz Rose, Duisburg, DE;
Walter Weischedel, Meerbusch, DE;
Lutz Rose, Duisburg, DE;
Walter Weischedel, Meerbusch, DE;
SMS Siemag AG, Duesseldorf, DE;
Abstract
A method of producing steel () with a high manganese and low carbon content on the basis of liquid pig iron () or liquid steel () and slag-forming constituents () with the object of preventing existing drawbacks of process route in vessels other than, e.g., electrical arc furnaces (). With steel produced with a high manganese and low carbon content, in a process, the carbon component is reduced to about 0.7-0.8% by a combined blowing of oxygen () through top lances () and underbath nozzles () after feeding of liquid ferro-manganese (and liquid steel () in a FeMn-refining converter (), wherein a component of a cold end product from premelt is added as cooling means (), and wherein the carbon component is reduced to about 0.05-0.1% C by a continuous blowing of oxygen () through the underbath nozzles.