Fiber reinforced plaster molds for metal casting

Details Fiber reinforced plaster molds for metal casting Fiber reinforced plaster molds for metal casting

1984-09-07

1989-04-04

Seidel, Richard K.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 389, 106109, 164523, 164529, B22C 100

Patent

active

048182877

ABSTRACT:
An improved composition and process for preparing plaster molds used in casting nonferrous metals is provided wherein plaster molds are prepared from particulate calcium sulfate molding plaster admixed with insoluble calcium sulfate anhydrite whisker fibers.

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patent: 4081283 (1978-03-01), Lankard
patent: 4152403 (1979-05-01), Winslow
patent: 4647486 (1987-03-01), Ali

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