Induction melting apparatus sealed against the atmosphere

Details Induction melting apparatus sealed against the atmosphere Induction melting apparatus sealed against the atmosphere

1993-05-14

1995-05-16

Reynolds, Bruce A.

Industrial electric heating furnaces

Induction furnace device

For charging or discharging

373156, 373158, F27D 300

Patent

active

054167930

ABSTRACT:
A crucible 1 of an induction melting apparatus has a cover 3 closing the crucible off hermetically and having a connection 5 for attaching the cover to a vacuum source 6. At the bottom the crucible 1 has a prolongation 7 in which a mold 9 is sealingly disposed. Thus, the mold 9 is evacuated together with the crucible 1 so that a vacuum chamber enveloping the crucible 1 and the mold (9) is unnecessary.

REFERENCES:
patent: 2763903 (1956-09-01), Herres
patent: 3702368 (1972-11-01), Hukin
patent: 4562943 (1986-01-01), Freytag et al.
patent: 4738713 (1988-04-01), Stickle et al.
patent: 5121406 (1992-06-01), Hugo et al.

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