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:
Sep. 30, 1986
Filed:
May. 17, 1982
William G Wilson, Pittsburgh, PA (US);
Other;
Abstract
A method for adding reactive metals to steel being continuously cast to eliminate the problem of tundish nozzle plugging is provided by the steps of continuously casting molten steel through a tundish nozzle while introducing a reactive metal into the molten steel in a form and at a point either above or below the tundish nozzle such that high melting oxides and/or oxysulfides of the reactive metal are not formed in an amount sufficient to cause plugging in the nozzle before passing through the nozzle. A flux can be introduced with the alloy or subsequent to the alloy addition that can lower the melting point of the reactive products below the temperature of the steel going through the tundish nozzle.