Method of ladle steelmaking and product produced thereby

Details Method of ladle steelmaking and product produced thereby Method of ladle steelmaking and product produced thereby

1984-10-22

1986-07-15

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

C21C 710

Patent

active

046004270

ABSTRACT:
A method of refining steel in the ladle using a low melting point slag is disclosed. Both ELS and resulfurized steels are subjected to the simultaneous effect of a vacuum and a purging agent, preferably an inert gas, to lower the H.sub.2 content into the flake-free range irrespective of the chemistry of the steel, and heat is added via AC arcs from non-consumable electrodes at a temperature only slightly higher than the solidication temperature of the steel, preferably about 2840.degree. F. Steel produced thereby is also disclosed.

REFERENCES:
patent: 3547622 (1970-12-01), Hutchinson
patent: 3574596 (1971-04-01), Lohman
patent: 3980469 (1976-09-01), Forster

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