Method of and apparatus for vacuum casting

Details Method of and apparatus for vacuum casting Method of and apparatus for vacuum casting

1994-07-06

1995-07-11

Batten, Jr., J. Reed

Metal founding

Process

Shaping liquid metal against a forming surface

164119, 164254, 164306, B22D 1804, B22D 1806

Patent

active

054312124

ABSTRACT:
In a method of vacuum casting wherein when the molten metal previously introduced into a molten metal reservoir is fed into a cavity, the lowest head of the molten metal in the molten metal reservoir is held to be higher than the level of a sprue, so that the cycle time of casting may be shortened and the quality of cast products may be improved. To this end, the interior of the molten metal reservoir is held gas tight while the sprue is opened by a gate member of straight tubular shape.

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