Continuous method for reclaiming, melting and casting aluminum s

Details Continuous method for reclaiming, melting and casting aluminum s Continuous method for reclaiming, melting and casting aluminum s

1983-05-12

1985-02-12

Andrews, M. J.

Metal founding

Process

Shaping liquid metal against a forming surface

294033, 75 63, 75 68R, 241 23, B22D 1110

Patent

active

044985231

ABSTRACT:
A continuous process is disclosed for the recovery of an aluminum alloy from aluminum scrap containing more than one alloy. The recovery is made in a manner which will conserve energy. The process comprises providing a feedstock containing at least two components therein comprised of different aluminum alloys, the components having at least parts thereof joined to each other. The feedstock is treated to cause the joined components to become detached from each other. One of the detached components is separated from the remainder of the feedstock, melted and thereafter continuously cast without substantially upgrading the composition thereof to provide a cast alloy having a composition substantially the same as that from which the separated component was fabricated. The treating may be accomplished by heating the feedstock to a temperature sufficiently high to render fracture sensitive the component having the lowest incipient melting temperature.

REFERENCES:
patent: 3736896 (1973-06-01), Osborn, Jr. et al.
patent: 4016003 (1977-04-01), Stauffer
patent: 4119453 (1978-10-01), Knezevich
patent: 4123294 (1978-10-01), Hanink
patent: 4269632 (1981-05-01), Robertson et al.
patent: 4282044 (1981-08-01), Robertson et al.
patent: 4330090 (1982-05-01), Montagna et al.
patent: 4411707 (1983-10-01), Brennecke et al.

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