Pressure molding process using salt cores and composition for ma

Details Pressure molding process using salt cores and composition for ma Pressure molding process using salt cores and composition for ma

1984-10-30

1990-02-27

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

106 389, 264 37, 264221, 264317, 264DIG44, B29C 3352, B29C 3354

Patent

active

049044230

ABSTRACT:
A process for pressure molding an article around a hardened salt mold core made from a mixture of relatively low melting temperature salt and sand wherein the core is removed from the finished article by immersion of the article containing the core into a molten bath mixture of the core material thereby to melt the core out of the article, recover the core material, and thus replenish the bath for use in making additional cores. The bath is originally constituted by melting a suitable quantity of a dry premix of the salt and sand.

REFERENCES:
patent: 1523519 (1925-01-01), Gibbons
patent: 3136831 (1964-06-01), Zinn
patent: 3356129 (1967-12-01), Anderko
patent: 3692551 (1972-09-01), Weaver
patent: 4389367 (1983-06-01), Hudson

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