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:
Jan. 16, 1979
Filed:
Nov. 30, 1977
Peter Machner, Leoben, AT;
Vereinigte Edelstahlwerke Aktiengesellschaft, Vienna, AT;
Abstract
In a method of and apparatus for producing ingots of unalloyed and alloyed steels having an improved primary crystallization, reduced ingot segregation and a reduced content of non-metallic inclusions, molten steel is poured into a mould, a slag mixture is supplied onto said steel, and energy is supplied to the slag mixture via at least one consumable electrode while the steel is solidifying. The slag mixture has a certain height corresponding at most to the relationship 0.15 (A + 100), wherein A is the shortest distance between the inner mould wall and the at least one consumable electrode, given in cm and amounting to at least 5 cm. Also, at least one consumable electrode has dimensions such that the ratio of the electrode cross-sectional area(s) to the mould cross-sectional area amounts to 1:10 at most.