Shanghai Daoqin Plastics Co., Ltd.

随 injection molding industrial development, plastics products application day 益广泛. in production in application injection molding products has cable 夹, 密封圈, 滤芯端 cover/cap and other. injection molding formed and other formed methods versus ratio, tool has degree high, mold more 换方便, formed process simple, efficiency high and other features. is, need achieve injection molding formed 形并不 is separation simple, need has 足够 理论 and experience, 否则就会造 formed made parts defect. lower 面就我厂 in injection molding processing process in to issues and methods brief overview lower.

made parts 不满 （1）缺 material add material amount 不准造 formed 注不满, most large injection amount can through to, specific for viscosity large. crystallization property ratio 容变化 large, pellets large or material temperature high raw materials 则应调 high material amount. （2） injection pressure 不足熔 melt plastics in low as temperature degree lower viscosity high, flow property 差, relatively large pressure and speed degree injection molding, using/adopting high pressure can made parts 时, achieve high speed injection can 克服不满 毛病. （3） material temperature low material temperature degree low make material flow property reduce, nozzle temperature degree low can can mold material 通道而 make made parts material, design mold 时, made cold material make nozzle cold material has it 处, ensure made parts quality. （4） injection machine 塑化容 amount small can use 塑化容 amount large machine ensure material. （5） mold design combined 理① made parts local separation thin. this increase made parts or local thick, can in filling 不足处 附近设置辅助 runner