Method and apparatus for feeding liquid metal into a mold

Details Method and apparatus for feeding liquid metal into a mold Method and apparatus for feeding liquid metal into a mold

1990-05-04

1993-01-05

Seidel, Richard K.

Metal founding

Process

Shaping a forming surface

164257, 164 63, B22D 1804, B22C 902

Patent

active

051761963

ABSTRACT:
A mold containing a gasifiable or vaporizable disposable pattern 3, embedded in sand 4 without a binding agent, is fed through its base by a pressurized chamber 6 containing liquid cast metal. The pressure in the chamber 6 is regulated as a function of the surface area/volume ratio of the disposable pattern 3 to prevent the emergence of high-gloss carbon.

REFERENCES:
patent: 2082588 (1937-06-01), Menetrey
patent: 4616689 (1986-10-01), Denis
patent: 4693292 (1987-09-01), Campbell
patent: 4804032 (1989-02-01), Wilkins

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