| 摘要 |
PROBLEM TO BE SOLVED: To mold a stable molded article by uniformizing the temp. of a cavity to reduce shrink irregularity of molding. SOLUTION: A temp. controlling flow channel 11 of a heating medium is provided to a fixed mold and a movable mold so as to surround the cavity 20 formed by the fixed and movable molds opposed to each other. Heat accumulation parts generated by the heat transfer from the heating medium passing through the temp. controlling flow channel are provided at positions symmetric to the temp. controlling flow channel 11 so as to be generated at a distance almost equal from the outer peripheral part of the cavity.
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