Gas injection method

Details Gas injection method Gas injection method

1975-07-21

1977-10-04

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 93AC, 75 93E, C22B 2100

Patent

active

040521990

ABSTRACT:
Gas is injected into molten metal, such as aluminum, to purify the molten metal either of dissolved gases (degassing), or of dissolved solids such as magnesium ("demagging"). The apparatus for accomplishing this injection contains two metallic bath chambers, the molten metal being transferred from one chamber to the other through a conduit. A gas injection conduit is connected to the metal transfer conduit at a location submerged within the first metallic bath chamber from which metal is transferred to the second chamber, and the gas to be injected is introduced through this gas injection conduit into a location submerged within the first metallic bath chamber.

REFERENCES:
patent: 2528208 (1950-10-01), Bonsack et al.
patent: 2821472 (1958-01-01), Peterson et al.
patent: 3839019 (1974-10-01), Bruno et al.

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