Vacuum casting apparatus

Details Vacuum casting apparatus Vacuum casting apparatus

1994-07-12

1996-10-08

Hail, III, Joseph J.

Metal founding

Means to apply vacuum directly to work or to hold or...

Means applying vacuum or suction directly to molten casting...

164337, 222591, 266208, B22D 3700

Patent

active

055621490

ABSTRACT:
A casting conduit (5) is attached at a low-level location to a completely sealable furnace (1) for a casting material (2). At this connection, the furnace is provided with an outlet opening (4) which is capable of being closed by a shutter (3). The casting conduit (5) leads down to a mold chamber (6) in which the mold (7) is located. The casting conduit (5) is closed, e.g. in the manner of a tube, and can be connected by a vacuum connection (8) to a vacuum installation together with the mold chamber (6). When the vacuum in the furnace (1) and in the casting conduit (5) resp. the mold chamber (6) is equivalent, the outlet opening (4) can be opened by means of the shutter (3), and the casting material (3) can flow into the mold chamber (6) and into the mold (7) via the casting conduit (5).

REFERENCES:
patent: 2882570 (1959-04-01), Brennan
patent: 3226102 (1965-12-01), Pagonis
patent: 4478270 (1984-10-01), Rosenthal et al.
patent: 5062470 (1991-11-01), Rikker

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