Countergravity casting using particulate filled vacuum chambers

Details Countergravity casting using particulate filled vacuum chambers Countergravity casting using particulate filled vacuum chambers

1989-08-28

1990-11-20

Seidel, Richard K.

Metal founding

Process

Shaping a forming surface

164 34, 164 63, 164255, B22C 902, B22C 904, B22D 1806

Patent

active

049711318

ABSTRACT:
Particulate mold material, such as binderless foundry sand, is vacuumed upwardly from a particulate bed into an open bottom container about one or more gas permeable molds or destructible patterns in the container to form a casting assembly adapted for immersion in an underlying molten metal pool to effect countergravity casting of molten metal.

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

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