Metal casting apparatus

Details Metal casting apparatus Metal casting apparatus

1979-05-30

1981-03-10

Baldwin, Robert D.

Metal founding

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

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

164284, 164259, 164254, B22D 1800, B22D 1806, B22D 2702

Patent

active

042548179

ABSTRACT:
A casting furnace includes upper and lower chambers, separated by a wall having a pouring path extending therethrough. A crucible is positioned in the upper chamber and a mold is positioned in the lower chamber, both in alignment with the pouring path. A body of casting metal is placed in the crucible and is melted from the top down by an electric arc generated in the upper chamber, the bottom portion of the body of casting metal blocking the pouring path until the casting metal has become molten. Thereafter, the molten casting metal falls by gravity through the pouring path, and into the mold. The arrangement is such that the molten metal requires nothing but the force of gravity to enter the mold cavity.

REFERENCES:
patent: 2125080 (1938-07-01), Merrick
patent: 3788382 (1974-01-01), Daniel et al.
patent: 4150707 (1979-04-01), Emerick

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