Countergravity casting apparatus and method

Details Countergravity casting apparatus and method Countergravity casting apparatus and method

1989-05-02

1990-09-18

Seidel, Richard K.

Metal founding

Process

Shaping a forming surface

164 34, 164 63, 1641601, 164255, B22C 904, B22D 1806

Patent

active

049571532

ABSTRACT:
In an apparatus for vacuum countergravity casting of molten metal, a gas permeable, self-supporting mold is supported in an inverted casting position in an open bottom container with a particulate bed compacted about the mold. The mold may comprise a mold stack having a plurality of mold members stacked side-by side to form a plurality of mold cavities therebetween. The particulate bed may comprise loose, unbonded particulate compacted in-situ about the mold to support the mold stack in the container and press the mold members sealingly together before, during and after filling with molten metal.

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Kubo, Y. et al., Molding Unbonded Sand With Vacuum-The V-Process; American Foundry Society Transactions No. 73-126, 1973, pp. 529-544.

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