Molten metal vacuum treatment and apparatus

Details Molten metal vacuum treatment and apparatus Molten metal vacuum treatment and apparatus

1992-11-09

1995-05-16

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75508, 75647, 75678, 266208, C22B 904

Patent

active

054156807

ABSTRACT:
Disclosed is a method and apparatus of treating molten metal for reducing the amount of gaseous or volatile material contained therein. The method comprises providing a body of molten metal and contacting the molten metal with a porous member having a porous surface resistant to penetration with the molten metal. The porous member is subjected to reduced pressure to impose a reduced pressure zone on the molten metal contacting the porous surface thereby removing the gaseous material from the molten metal through the porous member.

REFERENCES:
patent: 2809107 (1957-10-01), Russell
patent: 4299627 (1981-11-01), Shinohara et al.
patent: 5031444 (1991-07-01), Doutre et al.
patent: 5167698 (1992-12-01), Miyagawa et al.

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