Method of vacuum casting molten metal

Details Method of vacuum casting molten metal Method of vacuum casting molten metal

1975-03-17

1976-12-14

Baldwin, Robert D.

Metal founding

Process

Shaping liquid metal against a forming surface

164128, 164131, B22D 2716, B22D 2900

Patent

active

039969924

ABSTRACT:
An elongated movable water cooled mold of any desired cross section has an open bottom end which is lowered into a pot of molten metal a predetermined distance with the metal being pulled into the mold under vacuum operated by suitable controls for establishing the desired length of the casting or billet. Water is supplied to the mold while still in the pot to permit the casting to harden and the mold is then removed therefrom and moved to a position close to floor level where termination of the water supply allows the contained heat in the casting to reheat the mold and expand it sufficiently so that the casting can drop free of the mold upon release of the vacuum.

REFERENCES:
patent: 1912981 (1933-06-01), Hoy
patent: 2863188 (1958-12-01), Harrison
patent: 2923040 (1960-02-01), Goodwin et al.
patent: 2987788 (1961-06-01), Lyman

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