IMPROVEMENTS IN OR RELATING TO A METHOD OF AND APPARATUS FOR PRODUCING IN GOTS OF UNALLOYED AND ALLOYED STEELS

摘要

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, energy is supplied to the slag mixture while the steel is solidifying in the mould, and the upper rim zone of the molten steel bordering on the slag mixture is cooled.