Method of operating automatic mold part producing apparatus

Details Method of operating automatic mold part producing apparatus Method of operating automatic mold part producing apparatus

1974-12-06

1976-06-29

Husar, Francis S.

Metal founding

Process

Shaping a forming surface

164 37, 164200, 141 67, B22C 1528

Patent

active

039659615

ABSTRACT:
In an automatic mold part producing apparatus having a mold chamber which is filled with mold forming material that subsequently is compressed between a pair of opposite end walls, the mold forming material is forced into said mold chamber by means of pressurized air, the pressure of which is gradually or stepwise increased during the chamber filling operation, for the purpose of achieving uniform compactness or density of the mold forming material throughout the height of the mold chamber.

REFERENCES:
patent: 3274651 (1966-09-01), Oliveira
patent: 3556196 (1971-01-01), Buhler

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