Method of making chrome steel in an electric arc furnace

Details Method of making chrome steel in an electric arc furnace Method of making chrome steel in an electric arc furnace

1977-01-27

1978-01-03

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 59, 75 60, 751305, C21C 552, C21C 532

Patent

active

040664422

ABSTRACT:
In a method of making chrome steel in an electric arc furnace, a charge of chrome-bearing molten metal in the furnace is decarburized by blowing into the charge a jet of pure oxygen and water vapor through a double lance consisting of two concentric tubes and extending into the furnace through a wall or the roof of the furnace, the end of the lance being submerged in the charge and surrounded by a medium which protects it against high temperature wear.

REFERENCES:
patent: 3708599 (1973-01-01), Krause
patent: 3860418 (1975-01-01), Josefsson
patent: 3867135 (1975-02-01), Johnsson
patent: 3867136 (1975-02-01), Eriksson
patent: 3902889 (1975-09-01), Malin

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