Shanghai Daoqin Plastics Co., Ltd.

PA6 polyamide (PA) 6 or nylon 6 chemical and material features PA6 chemical material features and PA66 very versus 似, however, it melting point relatively low, but also process temperature degree scope/range very wide. it impact resistant property and resistant solvent understanding property ratio PA66 need good,但吸 wet property more strong/high. is parts many quality features need to wet property effect/influence, therefore use PA6 design product need separation to this 一点. is improve/increase PA6 machine features, add various modifier. 玻璃就 is most Common additives, has is high impact resistance property also add combined formed 橡胶, 如EPDM and ***R and other. for/regarding has additives product, PA6 shrinkage rate in 1% to 1.5% between. add glass fiber additives can make shrinkage rate reduce to 0.3%（但 and process/workflow versus direction also need high 一 ）. molding shrinkage rate main/primary material crystallization degree and wet property effect/influence. shrinkage rate also and parts design, thick and its it process parameters formed 函数关系. for/regarding has additives product, PA6 shrinkage rate in 1% to 1.5% between. add glass fiber additives can make shrinkage rate reduce to 0.3%（但 and process/workflow versus direction also need high 一 ）. molding shrinkage rate main/primary material crystallization degree and wet property effect/influence. shrinkage rate also and parts design, thick and its it process parameters formed 函数关系. injection molding parts 模 process conditions drying 处理: due to PA6 very easy absorption water separation, therefore processing front drying especially need attention/notes. if material is use anti water material packaging supply, container maintain 密闭. if wet degree large 于0.2%, in 80C above hot gas in drying 16 small 时. if material already in gas in ultra- 8 small 时, 建议进行105C, 8 small above true dry. temperature degree: 230~280C, for/regarding reinforcement product types is 250~280C. injection molding parts mold temperature degree: 80~90C. injection molding parts mold temperature degree very significantly effect/influence crystallization degree, crystallization degree also effect/influence parts machine features. for/regarding structure parts crystallization degree very important, therefore injection molding parts mold temperature degree is 80~90C. for/regarding thin 壁, process/workflow relatively long parts 也建议施 use relatively high injection molding parts mold temperature degree. increase large injection molding parts mold temperature degree can improve/increase parts strong/high degree and rigid degree, reduce tough property. if thick large 于3mm, use 20~40C low temperature injection molding parts mold. for/regarding reinforcement material injection molding parts mold temperature degree large 于80C. injection pressure: generally in 750~1250bar between （取决于材 material and product design ）. injection speed degree: high speed （ for reinforcement type material need micro reduce ）. runner and gate: due to PA6 凝 solid time very short, therefore gate non important. gate 孔径不 need small 于0.5*t（ this 里t is parts thick degree ）. if use hot runner, gate dimensions ratio use runner small 一, is hot runner can 够帮助 retardant material solid. if use 潜入式 gate, gate most small 直径应当 is 0.75mm. type applications due to has very good machine strong/high degree and rigid degree by used for structure parts. due to has very good wear resistant loss features, also used for manufacturing bearings.