Differential pressure, countergravity casting using mold ingate

Details Differential pressure, countergravity casting using mold ingate Differential pressure, countergravity casting using mold ingate

1990-07-30

1991-02-19

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

164127, 164255, 164352, B22D 1500, B22D 1806

Patent

active

049934732

ABSTRACT:
Molten metal is differential pressure, countergravity cast into a casting mold having a heat conductive chill meter disposed in the ingate to the mold cavity. The chill member accelerates solidification of a plug of the metal in the ingate in the vicinity of the chill member after the mold cavity is filled with molten metal. The plug prevents run-out of molten metal from the mold cavity when the ingate and an underlying molten metal source are disengaged after casting. Accelerated solidification of the plug in the ingate permits early disengagement of the ingate and the molten metal source to shorten casting cycle time.

REFERENCES:
patent: 4340108 (1982-07-01), Chandley et al.
patent: 4520858 (1985-06-01), Ryntz, Jr. et al.

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