Shanghai Daoqin Plastics Co., Ltd.

今天, in world scope/range inner, for injection molding processing product demand increase, hot runner technology application scope 变 越 越广泛. therefore hot runner technology can 如此突飞猛进 development, its tool technology advantages to non important function. in lower 面 讨论 实际 application project especially suitable for using/adopting hot runner technology, cold runner mold is method achieve this injection molding processing molding.

　　1. multiple plastics, multiple color process
　　传统 injection molding is in sleeve/set mold upper molding types plastics or color, this can use cold runner, or hot runner mold, need achieve multiple plastics or multiple color 共注, must using/adopting hot runner technology. currently using/adopting hot runner use multiple plastics, multiple color processing parts is very more, 如先进 long 期保鲜饮 material bottle, bottle, is using/adopting structure use types plastics through hot runner multiple plastics processing made formed, a small amount of oxygen plastics in relatively outer plastics 里.
　　 in automotive manufacturing 业, multiple color (如红, 橙, transparent color)构 formed overall front rear currently is 流行, this must in mold upper more hot runner system, use hot runner system injection color, hot runner injection color, lower hot runner system injection transparent color and other. use cold runner mold is method achieve.
　　2. quality requirements 严格 plastics injection molding products
　　 for/regarding very more medical grade plastics injection molding products, most basic requirements is 不准许 has gate 痕(GATE VESTAGE). gate can can 会划破医护人员 手 sleeve/set and 皮肤, formed 疾病传染 and other. solutions is using/adopting hot runner technology 里 阀式 gate (VALVE GATE) molding methods, 彻底削 remove gate 痕. in recent years in upper plastics products processing 业不够景 gas, medical grade plastics injection molding products processing 却一支独秀, more using/adopting hot runner gate mold molding. for/regarding production high quality medical grade plastics products company 说, 就应该考虑 development hot runner molding technology.

　　3. gate direction and mold opening direction formed or 垂直角 degree
　　 has is will gate in parts positive effect/influence and use and other, need will gate in parts 侧面, this if make gate direction and mold opening direction 一致 话, gate mold strong/high degree very low. 以垂直 parts 侧面 角 degree gate comparison good. automotive upper 一 形状 complex large parts 经常会 has this type of will gate direction and mold opening direction formed 一定角 degree need. this has use hot runner can to. mold opening as very difficult will long cold runner and gate from belt/tape degree direction 拉出.
　　4. gate in deep parts inner 侧
　　 has industrial product for appearance requirements its 严格, in use 十不许暴露任何 gate 痕迹, small type parts 如化妆 product 口红笔 cover/cap, large to automotive inner parts. this 时候就 need will gate in parts inner 侧. parts deep degree large 时候就不 can can use cold runner gate, can use hot runner nozzle parts inner injection molding.

　　5. more mold
　　一 types increase output/production volume also increase injection molding machine 吨位 办 method is use more mold. mold upper has more separation 模面. this type of mold is full hot runner system achieve.
　　6.预 molding bottle 胚(如PET bottle 胚) made as
　　 day active in a large amount of use material bottle use injection molding methods production PET预 molding bottle 胚, again blow molding methods made formed material bottle. PET预 molding bottle production 无一例 outer full hot runner technology achieve. currently world upper most large PET预 molding bottle mold one-time can production 144 bottle 胚.
　　7.需 for more gate material separation control project
　　 has relatively large dimensions parts need more 点(more gate)进 material can molding. using/adopting more gate rear in parts upper long 会出现严 heavy effect/influence solvent combined 线. is 彻底消 remove this solvent combined 线, can using/adopting gate hot runner technology achieve. usually injection molding is will has gate meanwhile 打开. is remove parts upper solvent combined 线, need will different gate according to 充模情况 打开 or 关闭. cold runner 当然无 method provide for gate 进行打开 or separation control. this has hot runner technology.

　　8. need large amount 自动化 production project
　　 cold runner mold in use 时总会 has need recycling processing cold runner material, therefore very difficult and 自动化 technology combined 起 进行 large amount 自动化 production. need large degree improve/increase production rate 就应考虑 using/adopting hot runner technology. in upper heavy packaging 业, food packaging box/case and plastics bottle cover/cap and other, plastics products consumption amount large. this plastics food packaging box/case and plastics bottle cover/cap using/adopting hot runner mold fast speed large amount 自动化 production. for/regarding very more thin made parts, parts in mold in cooling time very short, this using/adopting hot runner gate can remove 费时 浇道 and gate cooling time, from can a large amount of add fast production speed degree.