Investment casting mold base

Details Investment casting mold base Investment casting mold base

1981-05-07

1987-10-20

Godici, Nicholas P.

Metal founding

Means to shape a forming surface

Pattern

164237, B22C 702, B22C 904

Patent

active

047007605

ABSTRACT:
An investment casting mold base has an enlarged, ellipsoidal-shaped body overlying a frusto conical-shaped body on the base. The enlarged body will form a molten metal staging cavity between a funnel cavity at the entrance of the mold formed by the frusto conical body and sprue channels leading to the article cavity in the mold. The staging cavity eliminates backup of molten metal at the mold entrance and possible spillover of the metal from the crucible mated to the mold during the centrifugal casting operation.

REFERENCES:
patent: 865823 (1907-09-01), Taggart
patent: 1639253 (1927-08-01), Ayers
patent: 1939479 (1933-12-01), Williams
patent: 2845667 (1958-08-01), Frischknecht
patent: 3295175 (1967-01-01), Krzyzanowski
patent: 3322187 (1967-05-01), Weissman
patent: 3610317 (1971-10-01), Benfield et al.
patent: 3731726 (1973-05-01), Eberle
patent: 3768544 (1973-10-01), Padeh
patent: 3985178 (1976-10-01), Cooper
patent: 4081019 (1978-03-01), Kulig
patent: 4161208 (1979-07-01), Cooper

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