Hot-runner plastic injection molding system
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United States of America Patent
Stats
-
Feb 23, 1988
Grant Date -
N/A
app pub date -
Dec 30, 1985
filing date -
Feb 28, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a hot-runner plastic injection system, part of a resin passage connecting the nozzle of an injection molding machine and cavities of a mold adjacent to each of the cavities is formed of a tubular member of material which can be heated by high frequency induction heating. High frequency induction heating windings are wound around the tubular members and are connected to a high frequency power source in series with each other. There is provided a temperature controller for controlling the temperature of the tubular members by controlling the power to be supplied to the heating windings.
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