Shanghai Daoqin Plastics Co., Ltd.

injection molding processing process optimization and processing process in material conditions has 关, and injection molding production capacity or equipment 无关. for/regarding one-time injection molding process 而言, in most excellent time. most excellent speed rate need most low injection molding pressure. 图1 to 出 典 type products time and injection molding pressure between 关系. is, speed rate large, 就越容 easy quality issues ――射胶 speed degree high and mold gas 不充足 情况 lower, 往往会导致 melt most front separation 出现烧焦 phenomenon. therefore, in material material by 烧焦 部位必 must has gas plant/unit. if has gas plant/unit in 话, gas must control dimensions, but also must maintain 清洁. this gas 孔 设置 can in very large degree upper improve/increase material material speed degree. is, processing process can is less gas plant/unit has 任何 妥协.

1: injection molding pressure and injection molding speed rate between 关系

　 usually lower, time 不会太 long. 几乎95％ products time in 1.5 to 3秒. if time ultra- 3秒钟 话, need 进行调查, has 任何事故 发生. for/regarding small parts products time can more short, is for/regarding thin products or is melt long degree ultra- 500mm products time need ultra- 3秒钟.

　　射胶 stage/phase most optimization can can can to stage/phase belt/tape very less time 节约, is, most excellent time can in very large degree upper holding pressure time. in holding pressure in, filling in mold in semi melt material material must add pressure, in mold in, semi melt cooling 时, to pressure shrink let other melt mold, filling shrinkage rear 空间. for/regarding crystallization type plastics products 而言, this is very key/critical, is crystallization type polymer tool has relatively large shrinkage rate. holding pressure stage/phase can decrease/reduce product shrinkage rate, can in 一定程 degree upper ensure product can heavy production property, solid product welding and improvement product surface gloss degree. 射胶胶口 dimensions must combined ensure combined holding pressure. cooling will 取决于 holding pressure stage/phase use time. products cooling time 取决于 products thick and polymer type type. this is very easy 确定, can from data table/sheet in to data or can through utilizing CAE soft parts 做精确 确定.

　　 in usually lower, holding pressure time large is cooling time 80％, generally lower, cooling time need ratio setting time short. cooling speed rate and temperature degree and time between in this 一 指数关系. ratio rate is decline. improve/increase molding temperature degree can decrease/reduce cooling need time （见图2）. research table/sheet 明: injection molding equipment in cooling time setting 往往时 through experiment/testing 确定. 当然, this process in ring time also solid equipment upper time, if parameters is very solid 定 话, can in 一定 程 degree upper decrease/reduce processing cycle.

2: cooling time and injection molding temperature degree formed 指数关系
　 usually lower, effect/influence ring cycle most bad factors is mold cooling, causes is temperature degree issues, is less cold agent issues. about/regarding mold cooling issues in very more understanding. upper, has metal rate ratio generally plastics products need high 200倍. plastics will very easy will hot to metal, is, need 以同样 speed degree from mold in to hot amount, but also will cold agent to cooling pipeline is parts very difficult 事情. understanding cold agent is already 经流入 to to cooling 通道里 is parts very important 事情. usually lower, cooling pipeline is 平行, in very more lower, has cooling pipeline very difficult obtain cooling agent. therefore, will has cooling pipeline formed overall system can can is types most good solutions. cold agent temperature degree improve/increase will 会推动 cold agent in cooling pipeline in flow.

　　 from mold in products is very 费时 一 process. in generally lower, 不考虑 products dimensions, overall type products generally need 花5秒钟 time will products from mold in 取出, for/regarding separation injection molding parts, 花8秒钟 time 取出, rear again formed overall products. if can ensure this time 话, 就证明 equipment parameters design combined 理. has products from mold in this process 应该时 can control, speed degree can increase, can decrease small, obtain most optimization ring time. generally, machine can very good control this 一点.

　　 injection molding process in production cycle most excellent again very large degree upper reduce production cost and improve/increase production efficiency. large more product most optimization production tool has very large 距离, upper, very more product injection molding cycle can shrink short 10％－30％.