Method for injection molding into a resonating mold

Details Method for injection molding into a resonating mold Method for injection molding into a resonating mold

1989-07-17

1991-05-21

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264 71, 2643281, B29C 4500

Patent

active

050173111

ABSTRACT:
An injection molding method in which a molding material is injected into a cavity formed in a mold to be molded. The mold is driven to resonate so that resonance occurs in the mold at n wavelengths, where n=m/2 and m is a positive integer, and an injection molding apparatus provided with a fixed mold and a movable mold; the movable mold having a cavity in one side thereof, and an ultrasonic vibration feed device being connected to the other side thereof.

REFERENCES:
patent: 4140744 (1979-02-01), Karas et al.
patent: 4339303 (1982-07-01), Frisch et al.
patent: 4500280 (1985-02-01), Astier et al.
patent: 4780255 (1988-10-01), Depcik et al.

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