Production of plaster molds by microwave treatment

Details Production of plaster molds by microwave treatment Production of plaster molds by microwave treatment

1975-09-02

1977-08-23

Shore, Ronald J.

Metal founding

Process

Shaping a forming surface

164 6, 164 15, 164250, 264 25, B22C 912

Patent

active

040433803

ABSTRACT:
Metal casting components, e.g. molds and cores, are produced from a compacted mass of plaster by a two-stage drying treatment in a microwave oven with an intermediate cooling step whereby the plaster is completely calcined, and the resulting component will promote cast reproduction of its surface pattern with maximum fidelity of detail.

REFERENCES:
patent: 813605 (1906-02-01), Weyer
patent: 3704523 (1972-12-01), Guerga et al.
patent: 3732048 (1973-05-01), Guerga et al.

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