Shanghai Daoqin Plastics Co., Ltd.

can can 起因:

建议 use remedy methods:

injection molding machine

A, temperature degree low.

in material upper to rear and increase temperature. reduce screw speed degree or high speed obtain positive screw surface speed degree.

B, plastics in material inner degradation, plastics separation structure 破裂.

in has reduce material temperature degree. reduce back pressure. use gas material ensure 排出孔 positive 确运行且每 孔 setting positive temperature degree.

C, mold filling speed degree slow.

increase mold temperature degree. in injection molding machine upper maintain stability material.

mold

A, mold surface cold.

increase mold temperature degree. made cooling mold speed degree.

B, runner and gate small, in mold filling in generate degree rate.

use full runner increase runner and gate dimensions in mold filling stage/phase provide can 接受 剪切 rate.

plastics

A, injection molding parts pressure has 恰当 释放出 or by 处理.

will injection molding parts 退火, is nylon plastics product, will its temperature water in.

B, injection molding parts 并不充 separation combined plastics.

若 can can heavy new design product improvement thin low 断面.

C, add more use material.

decrease/reduce use material and new material mixed combined amount.

D, type plastics 杂质.

检查 plastics in 杂质. 彻底清洁射 material 缸. will material or material material machine lower 并彻底清洁.

E, use material quality can can relatively 差.

separation use material fine 检查杂质 迹象. ensure from use material in powder 尘 掉. is 否严格执行回 use 程序.

can can 起因:

建议 use remedy methods:

injection molding machine

A, injection molding pressure high.

reduce injection molding pressure. reduce screw toward front time.

B, mold filling speed degree slow.

increase injection molding speed degree.

C, 熔胶 不一致 property （熔胶 viscosity 差异）.

increase temperature degree （ increase material rear temperature degree ）. increase cycle time. increase back pressure or more grade back pressure. will mold to has more large can force large type injection molding machine upper.

mold

A, injection molding parts from mold inner ejection to high degree pressure.

use outer 顶杆. ensure ejection rear can 统一而 balanced 进行. need increase 顶杆 直径. reduce ejection speed degree.

B, mold surface formed 纹裂.

清洗并检查引起纹裂 mold surface.

C, metal parts cold and / or 油腻.

in it 们插入 mold inner front 脱脂并 preheating.

D, from pressure machine to mold surface.

will ejection system lower 并彻底清洗, liquid pressure ejection device upper is has 任何泄漏.

E, mold cavity or inner water.

in mold cavity, or sheet/plate upper 检查裂缝迹象. 检查因 is poor 质 胶圈引起 任何漏 water.

F, gate dimensions large make injection molding parts 因 份填塞而 份受 pressure.

decrease/reduce gate deep degree.

can can 起因:

建议 use remedy methods:

injection molding machine

A, mold cavity inner injection molding pressure low.

逐渐 rise high injection molding pressure, in rise pressure injection molding parts large small, to injection molding parts light micro 披锋.

B, mold cavity inner plastics 不足.

increase injection molding amount or 检查垫 material.

C, mold temperature degree high.

reduce mold temperature degree.

D, positive injection molding conditions.

use positive injection molding conditions （ temperature degree and pressure and other ） in has stability injection molding process front 抽取样本.

E, 射嘴孔太 small.

increase large 射嘴口 直径.

F, mold mold cavity filling speed degree slow.

increase injection speed degree or using/adopting more grade filling speed degree.

G, mold inner gate has 凝结关闭.

increase screw toward front time, in increase amount 样本.

H, injection amount inner temperature degree 差异.

reduce screw speed degree make screw rigid good in cooling formed front 结束. increase back pressure.

mold

A, gate small or design 不当.

increase gate dimensions and / or decrease/reduce combined long degree.

B, runner system design 不当.

use type or type runner. increase runner dimensions combined plastics viscosity or plastics flow features.

C, mold cooling water design 不足.

测 amount mold cavity different surface temperature degree will temperature degree and versus shrinkage 直连紧. if has obvious 差异, heavy new design cooling pipeline 以克服 issues.

plastics

A, plastics can flow property low （即 grade 别） polymer.

use relatively low viscosity （即: relatively easy flow grade plastics flow difficult ）.

can can 起因:

建议 use remedy methods:

injection molding machine

A, bending is is injection molding parts inner has more internal force.

reduce injection molding pressure. decrease/reduce screw toward front time （ especially is cooling time ）. from mold inner （ especially is relatively thick injection molding parts ） ejection rear 立即浸入 temperature water in （38℃ or 100℉） make injection molding parts slow slow cooling.

B, mold filling speed degree slow.

increase injection molding speed degree.

C, mold cavity inner plastics 不足.

increase material amount.

D, plastics temperature degree low or 不一致.

increase plastics temperature degree.

E, injection molding parts in ejection hot.

use cooling equipment.

mold

A, mold cooling can force 不够.

increase cooling can force （即 cooling liquid mold speed degree ） will cooling pipeline inner remove.

B, mold inner cooling pipeline balanced to injection molding parts belt/tape cooling rate.

检查 mold surface temperature degree, need will mold parts separation use different temperature degree. cooling pipeline and mold cavity surface more 接近.

C, gate design 不当.

in injection molding parts most thick separation gate. in can can use thin sheet/slice gate （ gate wide degree small, bending large ）

D, material system dimensions small.

increase runner or dimensions. need use semi runner.

E, is 模芯 偏移 or 移动造 formed injection molding parts thick 变化.

检查模芯 or mold cavity is for positive, for positive positive it 们.

plastics

A, plastics in has filling agent type type.

in add strong/high plastics in use 玻璃球体代替玻璃 filament 束.

B, injection molding parts design 不当（即不均 thick degree and 突然转变 壁 thick ）.

use 一致 壁 thick and 逐渐转变壁 thick heavy new design injection molding parts. according to positive selection plastics design injection molding parts （如 gate type type and plastics can flow property thick for process/workflow long ratio/proportion ）.

can can 起因:

建议 use remedy methods:

injection molding machine

A, in material in gas.

reduce material temperature degree, especially is rear 区; high back pressure; low screw speed degree; less amount.

B, filling pressure 不足够.

increase high injection molding pressure

C, mold filling speed degree fast.

reduce injection molding speed degree

mold

A, mold gas 不足.

in mold in 插入排 gas or increase has gas deep degree.

B, mold inner plastics flow 不平均 make gas in its in.

in mold upper use true gas methods, more gate 位置, increase runner 直径.

plastics

A, plastics 进入暧空 gas 工场时 water in cold plastics upper 凝结.

烘 dry plastics, in injection molding front will polymer in 工场至 less small 时.

can can 起因:

建议 use remedy methods:

injection molding machine

A, mold separation filling.

increase material amount. increase injection molding pressure. increase screw toward front time. reduce melt temperature degree. reduce or increase injection molding speed degree. （例如 for non crystallization type plastics need increase 45 speed degree ）.

B, 止流阀 不 positive as.

检查止逆阀 is 否裂开 or method as.

mold

A use gate small.

increase gate dimensions anti plastics in gate 处 早 solid 化.

B, runner design or dimensions positive 确.

use or runner. increase runner 直径.

C, gate 位置错误.

more gate 位置, make plastics mold most thick separation.

D, mold temperature degree low.

increase mold temperature degree.

E, mold inner gas 不足.

in mold inner processing gas or use true gas.

F, injection molding parts 壁位太 thick.

decrease injection molding parts most thick separation.

plastics

A, plastics has more water 份.

will plastics dry more long time decrease low plastics water amount. use true or drying agent dry machine.

can can 起因:

建议 use remedy methods:

injection molding machine

A, injection molding speed degree 不足.

increase injection molding speed degree.

B, plastics short 缺.

检查 material inner plastics amount. is positive setting injection 行程, need 话进行 more 改.

C, screw in 行程结束处没留 lower screw material.

检查止逆阀 is abrasion loss or 出现裂缝.

D, as time 变化.

检查动 as is stability.

E, material temperature degree low.

increase temperature degree. increase back pressure.

F, injection molding speed degree 不足.

increase injection molding speed degree.

G．射嘴部 separation by 封.

检查射嘴看 has has material or 未塑化 plastics.

H, or material outer add hot device can as.

检查 has add hot device outer use table/sheet can amount is positive 确.

I, injection molding time short.

increase screw toward front time.

J, plastics in material 斗喉壁 upper.

increase material 斗喉区 cooling amount, or reduce material rear temperature degree.

K, injection molding machine amount small. （即 injection amount and can force ）

use relatively large injection molding machine.

mold

A, mold inner gas 不足.

检查排 gas has by 堵塞.

B, mold filling 不足.

increase gate dimensions and / or decrease/reduce gate combined long degree. in positive for processing cold material anti gate and runner by 未塑化 plastics 封住.

plastics

A, injection molding parts thick thin, plastics can flow.

use viscosity relatively low （即 relatively easy flow ） plastics.

B, plastics flow long degree large, plastics can filling injection molding parts.

more gate 位置以 decrease/reduce plastics flow long degree.

can can 起因:

建议 use remedy methods:

injection molding machine

A, in cold material.

检查射嘴安装处 is 否 滴漏. increase temperature degree. or use 封闭式射嘴, it is positive as. injection molding machine inner can make plastics and mold separation 离.

B, temperature degree low.

increase temperature degree.

C, injection molding parts full filling.

increase injection molding machine injection molding amount. increase injection molding holding pressure.

D, in mold surface use clamping force 不充足.

increase has clamping force.

mold

A, has 预先设立 cold material 穴.

in sleeve/set for processing cold material or add deep has cold material 穴.

B, mold temperature degree low.

increase mold temperature degree.

C, plastics flow direction has 急剧 转变.

in mold inner can can 方避免尖锐 边缘.

D, mold cavity inner 旋纹（ especially is use mixed combined plastics more 明确）.

increase gate or use thin sheet/slice type gate.

E, use demolding agent.

避免 use demolding agent.

F, gate inner, hot plant/unit defect cold material formed coarse surface.

use more high temperature degree or more positive hot runner 射嘴.

plastics

A, plastics has more lubricant or certain is product.

for plastics separation 批 塑 product experiment/testing its it processing material.

can can 起因:

建议 use remedy method:

injection molding machine

A, temperature degree low.

increase material front temperature degree.

B, mold filling speed degree slow.

increase injection molding speed degree. increase injection molding pressure.

C, mold temperature degree low.

increase mold temperature degree.

mold

A, runner and gate small.

if need, increase runner and gate wide degree.

plastics

A, plastics viscosity high.

selection relatively easy flow plastics grade 别.

can can 起因:

建议 use remedy methods:

injection molding machine

A, surface temperature degree high.

reduce material temperature degree.

B, plastics in material time long.

decrease/reduce cycle time. injection molding amount for injection molding small.

C, temperature degree low mold filling time unstable.

increase high material temperature degree. increase high mold filling speed degree.

D, injection molding pressure 不足.

increase injection molding pressure.

mold

A, mold surface temperature degree low.

increase high mold temperature degree. made cooling agent mold speed degree.

B, injection molding parts upper has separation 未塑化 plastics cold material.

increase cold material dimensions. expand runner 尾部以形 formed add plastics cold material 穴. use power/electricity add hot and sleeve/set.

C, runner and gate small or long degree long, plastics in 输送时凝结.

如 has need, increase runner and gate deep degree.

D, mold surface demolding agent more.

use 白酒精彻底清洁 mold surface.