Shanghai Daoqin Plastics Co., Ltd.

large more 数TPU plastics in injection molding formed process in is improved demolding defect type deformation issues, in mold upper upper in property or property demolding agent （离 type agent ）, this in product upper mixed has demolding agent, its surface has 一 污浊, spray coating front surface 清洁也不 can demolding agent dry 净, 导致TPU材 material surface causes has which?

1, due to parts in temperature degree lower 经受一定时问 恒定 negative function 而突然完一 full phenomenon is force 破裂;

2, certain thermoplastic property parts degree in relatively high temperature degree lower cracks and 破裂称 is hot force cracking;

3, surface 浑浊指塑 parts surface generate has 空隙 裂缝 and 由此形 formed loss. due to long time or 反复施 add low plastics force property can force 而引起塑 parts external or internal generate cracks phenomenon is force cracking.

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