Process of continuously treating an alloy melt

Details Process of continuously treating an alloy melt Process of continuously treating an alloy melt

1983-08-15

1985-05-07

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 46, 75120, 75130R, C21C 702

Patent

active

045156301

ABSTRACT:
A process for continuously treating a ferrous or non-ferrous alloy melt is disclosed. The melt is transferred through a plurality of interconnected zones. The carbon content of the melt is lowered in a first treatment zone. Then, the residual oxygen content of the melt is lowered in a second treatment zone by adding a deoxidizing agent to the melt. Active sulfide forming agents are added to the melt in the third treatment zone to lower the sulfur content of the deoxidized melt. The dissolved gas content of the desulfurized melt is lowered by flushing the melt with a gas in a fourth treatment zone. Next, the remaining particulates and films are removed from the melt by filtering the degassed melt in a fifth treatment zone.

REFERENCES:
patent: 3303018 (1967-02-01), Goss
patent: 3336132 (1967-08-01), McCoy
patent: 3467167 (1969-09-01), Mahin
patent: 3702243 (1972-11-01), Miltenberger
patent: 3754892 (1973-08-01), Ando
patent: 3816104 (1974-06-01), Ramachandran
Houseman, "Continuous Steelmaking Processes," Steel Times, May, 1978, pp. 457-462.

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