Investment shell molding materials and processes

Details Investment shell molding materials and processes Investment shell molding materials and processes

1980-01-18

1982-02-23

Baldwin, Robert D.

Metal founding

Process

Shaping a forming surface

164361, 106 389, B22C 100

Patent

active

043164986

ABSTRACT:
A ceramic shell mold having the properties of being easily removed from the metal castings, high permeability, and a fired strength that can be controlled at levels lower than conventional molds, characterized in that the refractory used to make the mold is at least in part hydrated alumina.

REFERENCES:
patent: 3232771 (1966-02-01), Pearce
patent: 3326269 (1967-06-01), Schneider
patent: 3452804 (1969-07-01), Mellen, Jr. et al.

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