Method of producing molds for injection molding

Details Method of producing molds for injection molding Method of producing molds for injection molding

1986-09-30

1988-10-11

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With step of making mold or mold shaping, per se

Utilizing surface to be reproduced as an impression pattern

164 23, 164 33, 264225, 264255, 264337, 264338, B29C 3338, B22C 400

Patent

active

047770023

ABSTRACT:
Molds for injection molding are produced by providing a primary mold core, coating the primary mold core with a water-resistant coating layer, applying on the water-resistant coating layer a separating layer, spraying a metal shell on the separating layer, arranging a rear filling on the shell so as to form a tool part, and supplying water to the water-soluble layer so as to remove the tool part.

REFERENCES:
patent: 3136011 (1964-06-01), Peras
patent: 3215763 (1965-11-01), Buerger
patent: 3405212 (1968-10-01), Fraser et al.
patent: 4072673 (1978-02-01), Lammers
patent: 4225109 (1980-09-01), Yotsutsuji et al.

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