Method of and apparatus for producing steel ingots

Details Method of and apparatus for producing steel ingots Method of and apparatus for producing steel ingots

1977-11-30

1979-01-16

Husar, Francis S.

Metal founding

Process

Shaping liquid metal against a forming surface

164252, B22D 2702

Patent

active

041344430

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.

REFERENCES:
patent: 2893085 (1959-07-01), Johansson et al.
patent: 3786853 (1974-01-01), Cooper
patent: 3916978 (1975-11-01), Plockinger et al.
patent: 4036278 (1977-07-01), Ramacciotti

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