Method of making a ceramic shell mold

Details Method of making a ceramic shell mold Method of making a ceramic shell mold

1978-07-03

1980-08-12

Baldwin, Robert D.

Metal founding

Process

Shaping a forming surface

106 383, 106 389, 164 41, 164361, B22C 118, B22C 904

Patent

active

042168155

ABSTRACT:
Method for making a novel shell mold for use in directional solidification and for casting alloys containing reacting components, wherein a binder comprising a non-fibrous aqueous acidic dispersion of alumina monohydrate and being essentially free of silica, is employed. The resultant shell mold is particularly suitable for the casting of nickel and cobalt based alloys containing relatively reactive constituents such as zirconium, aluminum and titanium.

REFERENCES:
patent: 3722577 (1973-03-01), Webb
patent: 3752689 (1973-08-01), Moore, Jr.
patent: 3859153 (1975-01-01), Beyer et al.
patent: 3894572 (1975-07-01), Moore, Jr.
patent: 3933190 (1976-01-01), Fassler et al.
patent: 3935023 (1976-01-01), Derolf

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