Arc steelmaking

Details Arc steelmaking Arc steelmaking

1976-07-08

1977-11-29

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 53, 75257, C21C 552, C22B 910

Patent

active

040604063

ABSTRACT:
The invention provides a slag conditioner for use in electric arc steelmaking which comprises 30 to 80% by weight of alumina, 10 to 30% by weight of aluminium 5 to 40% by weight fluorspar and 0 to 20% by weight of alkali metal carbonate. The conditioner is added with lime to deoxidized steel suitably in an amount of from 5 to 15 Kg/tonne of steel to promote rapid reduction of the initial refining slag iron oxide content together with increased slag fluidity and a faster rate of lime dissolution to form a reactive slag.

REFERENCES:
patent: 2416179 (1947-02-01), Kemmer
patent: 2848321 (1958-08-01), Bunbury
patent: 3723094 (1973-03-01), Schlatter

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