Shanghai Daoqin Plastics Co., Ltd.

PET polyethylene terephthalate (PET) typical applications scope/range automotive industrial （ structure device parts light box/case, electrical parts 如车头灯反 light and other ）, electrical appliances parts （马达 housing/shell 体, electrical device, electrical appliances, 开关, micro internal device parts ）. industrial application （泵 housing/shell 体, device and other ）. injection molding parts process conditions drying 处理: processing front drying is must, is PET wet property relatively strong/high. drying conditions is 120~165C, 4 small drying 处理. requirements wet degree small 于0.02%. temperature degree: for/regarding non filling type type: 265~280C; for/regarding filling type type: 275~290C. injection molding parts mold temperature degree: 80~120C. injection pressure: 300~1300bar. injection speed degree: in 不导致脆化 front lower can use relatively high injection speed degree. runner and gate: can use has type type gate. gate dimensions is parts thick degree 50~100%. chemical and material features:PET 玻璃化转化 temperature degree in 165C left right, material crystallization temperature degree scope/range is 120~220C. PET in high temperature lower has very strong/high wet property. for/regarding glass fiber reinforcement type PET材 material 说, in high temperature lower also non easy bending 形变. can through add crystallization reinforcement agent improve/increase material crystallization degree. use PET processing transparent products tool has gloss degree and hot temperature degree. can toward PET in add and other additives make bending deformation decrease small to most small. if use relatively low injection molding parts mold temperature degree, that use non filling PET材 material can obtain transparent products.