Process for manufacturing shell molds

Details Process for manufacturing shell molds Process for manufacturing shell molds

1984-05-14

1985-08-06

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 383, 106 3835, 164 24, 164516, B28B 736

Patent

active

045333947

ABSTRACT:
A process for manufacturing shell molds for investment casting using an artificial stucco material is disclosed. The stucco particles comprise refractory powder held together by a binder which volatilizes or otherwise disintegrates at firing temperatures. Since the particles lose their structural integrity in the firing process, the shell mold may be more easily broken away from the finished casting.

REFERENCES:
patent: 3743003 (1973-07-01), Brown
patent: 4204872 (1980-05-01), Hayati et al.

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