| 摘要 |
A quick heating and cooling mold is provided to improve the quality of products and reduce the processing time by allowing quick heating and cooling of the cavity. A quick heating and cooling mold comprises cores(3c,4c) in which a cavity provided with the molten resin from a nozzle is formed. The core, which locally heats the face opposite to the cavity, includes a heating core part(20) in which a work coil is wound along a coil groove(11), a high-frequency oscillator which selectively applies induction current to the work coil in order to heat the heating core part, and a cooling channel(43) formed inside the core to circulate coolant inside.
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