Method of treating molten aluminum by removing hydrogen gas and

Details Method of treating molten aluminum by removing hydrogen gas and Method of treating molten aluminum by removing hydrogen gas and

1985-12-17

1987-06-02

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 93AC, C22B 2106

Patent

active

046700501

ABSTRACT:
Hydrogen gas and nonmetallic inclusions are removed from molten aluminum by a method comprising applying over the surface of molten aluminum in a container a mixture of at least one compound selected from the group consisting of boron oxides, boric acids and boric acid compounds and a flux comprising a halgen salt, introducing a treating gas into the molten aluminum, and removing the hydrogen gas-containing treating gas and nonmetallic inclusions rising to the surface of the molten aluminum.

REFERENCES:
patent: 1921998 (1933-08-01), Bonsack
patent: 3198625 (1965-08-01), Stroup
patent: 3972709 (1976-08-01), Chia et al.
patent: 4402741 (1983-09-01), Pollet et al.

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