Valve gate injection molding apparatus
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United States of America Patent
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-
Jan 3, 1995
Grant Date -
N/A
app pub date -
Dec 16, 1993
filing date -
Dec 21, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A valve gate injection molding apparatus, in which the gas produced within a heating probe is discharged through a gas discharge outlet groove from the base side of a valve pin, leak of the resin melt is prevented by flowing a cooling fluid for controlling the temperature to increase viscosity of the resin melt, and preventing overheat of the valve pin actuating assembly caused by heat conduction from the heated and pressurized resin melt.
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