Method of casting metal in sand mold using reduced pressure

Details Method of casting metal in sand mold using reduced pressure Method of casting metal in sand mold using reduced pressure

1980-05-29

1982-07-20

Hampilos, Gus T.

Metal founding

Process

Shaping liquid metal against a forming surface

164 65, 164133, 164255, B22D 1806

Patent

active

043401082

ABSTRACT:
Casting metal in rigid, self supporting, gas permeable molds with one or more mold cavities for molding one or more parts, in which the mold cavities have gate passages with their lower open ends at the lower surface of the mold, by submerging the lower ends of the gate passages beneath the surface of molten metal and applying a reduced pressure to the upper surface of the mold to fill the mold cavities with molten metal to produce unconnected metal parts or groups of parts.

REFERENCES:
patent: 1653232 (1927-12-01), Smith
patent: 2908054 (1959-10-01), Wilkins
patent: 2923040 (1960-02-01), Goodwin et al.
patent: 3863706 (1975-02-01), Chandley et al.
patent: 4112997 (1978-09-01), Chandley

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