Method for forming a casting mold and a flexible pattern to be u

Details Method for forming a casting mold and a flexible pattern to be u Method for forming a casting mold and a flexible pattern to be u

1975-09-17

1977-06-07

Vlachos, Leonidas

Metal founding

Process

Shaping a forming surface

164222, 164233, 164249, 249 65, 249183, B22C 900, B28B 732

Patent

active

040277178

ABSTRACT:
A method for forming casting molds, comprising forming a flexible pattern composed of rigid plates and a flexible cloth, the rigid plates being adhered to the flexible cloth with intervals between plates, and the flexible pattern being made an air-tight construction, pouring a fluid into the flexible pattern or supplying the fluid under pressure to form any desired shape thereof, discharging the fluid from the flexible pattern after a sand mold has been cured, and then withdrawing the flexible pattern from the sand mold.

REFERENCES:
patent: 459103 (1891-09-01), Adams
patent: 2170188 (1939-08-01), Cobi
patent: 2324554 (1943-07-01), Billner
patent: 3074140 (1963-01-01), Balcomb et al.

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