Powdered flux for treating aluminum-silicon alloys

Details Powdered flux for treating aluminum-silicon alloys Powdered flux for treating aluminum-silicon alloys

1988-04-13

1989-02-28

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75257, C21B 504

Patent

active

048082228

ABSTRACT:
This invention relates to powdered flux compositions and their use in purifying molten mixtures of aluminum and silicon before casting. The powered flux compositions comprise a carbonate, a sodium and hydrogen free fluoride, and amorphous or encapsulated red phosphorus. The major advantage of the powered flux is that all necessary components needed to purify the molten mixtures of aluminum and silicon and refine the silicon particles are together in one package, and purification can be carried out in one step.

REFERENCES:
patent: 3186881 (1965-06-01), Robbins
patent: 3189491 (1965-06-01), Robbins
patent: 3436212 (1969-04-01), Hess
patent: 4202692 (1980-05-01), Carini
patent: 4340426 (1982-07-01), Tabei
patent: 4417723 (1983-11-01), Beranek et al.

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