Composition for making an investment mold for casting and solidi

Details Composition for making an investment mold for casting and solidi Composition for making an investment mold for casting and solidi

1976-09-08

1978-12-05

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 383, 106 389, 106 65, 106 69, 164 26, B28B 734

Patent

active

041284313

ABSTRACT:
A composition for making shell investment molds for the casting and solidification of superalloys therein embodies preparing a primary slurry composition of a mixture of three different flour grain sizes of fused alumina and a silica binder. The flour grain sizes range from approximately 240 mesh to approximately 400 mesh, U.S. Standard or Tyler screen series.

REFERENCES:
patent: 3436235 (1969-04-01), Baer et al.
patent: 3445250 (1969-05-01), Preece
patent: 3754945 (1973-08-01), Moore

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