| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that a boundary part between a product part and a non-product part is cooled and solidified to be difficult to separate off it with handwork in a processing after blow molding in a conventional method, and consequently, it is necessary to separate off it by using a cutter knife and there is dangerousness of causing an accident at work due to the misuse of the cutter knife.SOLUTION: In a blow-molding split mold of a thermoplastic resin, a heating element is installed in the proximity of a pinch-off part integrated with or separated from the split mold. |
