Method and apparatus for preparing foundry moulds or cores

Details Method and apparatus for preparing foundry moulds or cores Method and apparatus for preparing foundry moulds or cores

1975-04-14

1976-03-16

Shore, R. J.

Metal founding

Process

Shaping a forming surface

164193, B22C 512

Patent

active

039439917

ABSTRACT:
A method and apparatus for preparing relatively large size foundry moulds and cores from cold-setting foundry sand mixtures wherein successive batches of sand and binder on the one hand with sand and catalyst on the other hand are mixed in a chamber having a rotary mixing element. The batches are discharged from the chamber by gravity into a mould or core box and the chamber is purged by a blast of compressed gas between the successive mixing operations.

REFERENCES:
patent: 3590906 (1971-07-01), Bayliss et al.
patent: 3682448 (1972-08-01), Kedzior
patent: 3704743 (1972-12-01), Edwards
patent: 3779520 (1973-12-01), Edwards

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