Pressure casting method and apparatus

Details Pressure casting method and apparatus Pressure casting method and apparatus

1992-09-14

1994-03-29

Bradley, Paula A.

Metal founding

Process

Shaping liquid metal against a forming surface

164 34, 164284, B22D 1800, B22D 2713

Patent

active

052976106

ABSTRACT:
A pressure molding method and apparatus uses a mold with a casting cavity and a pouring gate through which a molten metal is fed into the casting cavity. After feeding a molten metal into the mold through the pouring gate to fill the casting cavity and pouring gate, a cap member is placed on the mold to bring its open end into contact with a dead head of the molten metal in the pouring gate of the mold so as to form an air-tightly sealed chamber between the cap member and dead head of the molten metal. Pressure is supplied into the sealed chamber to force the molten metal in the mold through the dead head.

REFERENCES:
patent: 3635791 (1972-01-01), Bly
patent: 4580617 (1986-04-01), Blechner
patent: 4733714 (1988-03-01), Smith

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