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专利名称：MOLD FOR INJECTION MOLDING发明人：Tse-Chia Ho,Sy-Tsair Yeh申请号：US12100272申请日：20080409
公开号：US20090110767A1公开日：20090430
专利附图：
摘要：A mold for injection molding includes a male mold portion, and a female moldportion mating with the male mold portion to define a parting face therebetween. Thefemale mold includes a mold cavity defined at the parting face, an injection aperturecommunicated with the mold cavity, an air channel defined at the parting face and evenly
spaced from and partially surrounding the mold cavity, a spacing portion formedbetween the mold cavity and the air channel, and a gap formed between the male moldportion and the spacing portion for transmitting air from the mold cavity to the airchannel during injection of molten plastic. When injecting molten plastic, air in the moldcavity can be expelled in time under pressure of the molten plastic and through the airchannel. Therefore, the surface quality of the molded product can be improved, byavoiding formation of air holes, fissure.
申请人：Tse-Chia Ho,Sy-Tsair Yeh
地址：Tu-Cheng TW,Tu-Cheng TW
国籍：TW,TW
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