Counter-gravity casting mold

Details Counter-gravity casting mold Counter-gravity casting mold

1984-09-26

1986-12-30

Godici, Nicholas P.

Metal founding

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

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

164361, 164364, B22D 1806

Patent

active

046321713

ABSTRACT:
A thin-walled, resin-bonded sand, shell mold for the vacuum counter-gravity casting of metal comprising cope and drag halves glued together at a parting line therebetween. The drag includes a flange extending beyond the periphery of the cope which flange has an upper sealing surface formed by a drag-shaping pattern for effecting a seal with the mouth of the vacuum chamber used to fill the mold.

REFERENCES:
patent: 3608617 (1971-09-01), Burke
patent: 4076070 (1978-02-01), Lefebvre et al.
patent: 4340108 (1982-07-01), Chandley et al.
Automatic Counter Gravity Casting of Shell Molds, Transactions of the American Foundrymen's Society, 87th Annual Meeting, Apr. 10-15, 1983.
Automatic Counter-Gravity Investment Casting, American Society for Metals, Paper No. 8201-045, Oct. 23-28, 1982.

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