Method of and apparatus for low-pressure casting

Details Method of and apparatus for low-pressure casting Method of and apparatus for low-pressure casting

1994-08-31

1997-03-18

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164137, 164306, 164340, B22D 1804, B22D 3304

Patent

active

056113889

ABSTRACT:
A casting mold for a low-pressure casting apparatus can be opened and closed and is closed to form therein a cavity which is filled with molten metal to form a cast product. The casting mold includes an upper mold of metal, a lower mold of metal and a sand mold which is disposed between the upper and lower molds and forms a part of the cavity. A top wall of the cavity is formed by a lower surface of the upper mold, at least a part of a side wall of the cavity is formed by the sand mold so that the upper mold contacts with the molten metal filled in the cavity in a larger area than the lower mold.

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