Method of supporting a core in a mold

Details Method of supporting a core in a mold Method of supporting a core in a mold

1989-01-10

1991-01-22

Godici, Nicholas P.

Metal founding

Process

Shaping a forming surface

164 35, 164137, B22C 904, B22C 910

Patent

active

049863339

ABSTRACT:
The ceramic core is located within the ceramic mold by the insertion of recrystallized alumina pins through the wax encasing the core prior to encasing the whole in a ceramic slurry; on the subsequent removal of the wax, the molten metal, i.e. superalloy, is injected into the resulting space; the recrystallized alumina pins remain intact during the casting process hence substantially increasing the success rate of achieving accurate core locating during casting solidification.

REFERENCES:
patent: 3596703 (1971-08-01), Bishop et al.
patent: 3598167 (1971-08-01), Snyderman
patent: 3659645 (1972-05-01), Rose

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