Method for injection molding into a resonating mold
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United States of America Patent
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May 21, 1991
Grant Date -
N/A
app pub date -
Jul 17, 1989
filing date -
Jul 21, 1988
priority date (Note) -
Expired
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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.
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