Shanghai Daoqin Plastics Co., Ltd.

塑 parts 不足: important due to material 不足, melt material filling defect, gas amount and gas defect and other 启事导致 filling type melt material filling defect, gas amount and gas defect and other 启事导致 filling type 腔不满, parts outer 形残缺不完整 or more type 腔时 体 type filling 不满.  
    启事 separation 化:
    1. injection amount 不妥, add material amount 不足, can force and material 不足
    2. plastics 拉 degree separation or 不匀
    3. plastics in material in “架桥”
    4. material in light slip agent amount, screw or and material 筒间隙 large, melt material amount
    5. more type 腔时进 material balanced defect
    6. nozzle temperature degree low, or 孔径太 small, material temperature degree low
    7. injection pressure small, injection short, holding pressure short, screw or 柱塞退回 早
    8. injection speed degree fast or slow
    9. plastics property 太差
    10. flash material amount
    11. mold temperature low, plastics cooling fast
    12. mold system retardant force large, material 口 位不妥, small, defect, process/workflow long 而盘曲
    13.排 gas defect, cold material or cold material 穴不妥
    14. demolding agent amount, type has water separation and other
    15.塑 parts thin, outer complex 且面积 large
    16. plastics inner water separation and material more
    17. melt material in gas more  
    dimensions deformation: important due to mold strong/high degree defect, degree defect, injection machine as 不不变 and formed conditions 不不变 and other 启事, make parts dimensions 转变不不变.  
    启事 separation 化:
    1. machine electrical or liquid pressure system 不不变
    2. formed conditions 不不变（ temperature degree, pressure, 时刻变换）, formed cycle 纷歧致
    3. mold strong/high degree 不足, 定位杆盘曲, abrasion loss
    4. mold degree defect, parts as 不不变, 定位不切确
    5. mold clamping 不稳按时松时紧, easy flash
    6. gate small or 不匀, more type material balanced defect
    7. plastics pellets or add material amount 不匀
    8. more injection machine property can or 塑化不匀
    9.塑 parts cooling 时刻太 short, demolding rear cooling 不匀
    10.回 use material and new material ratio 不妥
    11. plastics shrink short 不不变, crystallization property material crystallization degree 不不变
    12.塑 parts rigid property defect, thick 不匀
    13.塑 parts rear conditions 不不变 
    bubbles: due to melt material inner gas amount or gas defect 而导致塑 parts inner gas 体, 并呈体积 relatively small or formed 串 空穴（ positive and true separation 辨）.  
    separation 化:
    1. raw materials water separation, solvent agent or easy material
    2. material temperature high, add hot long, plastics drop poly separation 化
    3. injection pressure small
    4.柱塞 or screw 退回 早
    5. mold gas defect
    6. mold temperature low
    7. injection speed degree fast
    8. mold type inner has water separation, 油脂, or demolding agent 不妥 
    parts defect, runner defect has gas 死角塌坑（凹痕） or true 空泡: due to holding pressure material defect, parts cooling 不匀, thick and plastics shrink short large 时 
    1. runner, material small, or 数目不够
    2.塑 parts thick or thick thin 不均（ in thick 壁处背部 easy 闪现塌坑）
    3.进 material 口 位不妥, gas material, shrink
    4. material temperature high, mold temperature high, cooling short, easy 出凹痕
    5. mold temperature low, easy true 空泡
    6. injection pressure small, injection speed degree slow
    7. injection and holding pressure short
    8. add material amount 不够, material 不足, material 不够
    9. melt material defect or material amount  
    flash large: due to clamping defect, large, plastics property good, add material amount make parts 沿边沿 extrusion thin sheet/slice.  
    separation 化:
    1. separation type combined defect, type and type separation sliding parts large
    2. mold strong/high degree or rigid property defect
    3. mold degree defect
    4. mold mono toward force or 安装时没 has pressure 紧
    5. injection pressure large, clamping force or machine defect, injection machine sheet/plate 不服行
    6.塑 parts 投影面积 ultra- 出 injection machine 答应 塑 made 面积
    7. plastics property large, material temperature high, mold temperature high, injection speed degree fast
    8. add material amount large  
    熔接 defect: due to melt material separation 流汇应时 material temperature low, resin and combined material versus solvent and other 启事, make melt material in 汇应时, defect, parts or internal generate relatively fine 接缝线.
    separation 化:
    1. material temperature low, mold temperature low
    2. injection speed degree slow, injection pressure small
    3.进 material more, 位不妥, system 情势不妥, process/workflow long, material retardant force large, material temperature drop fast
    4. mold cooling system 不妥
    5.塑 parts outer defect, thin, parts amount and thick 不匀, make material in thin 壁处会 combined
    6.嵌 parts temperature degree low
    7. plastics property 差, cooling speed degree fast
    8. mold inner has water separation, light slip agent, melt material gas amount, demolding agent amount
    9. mold gas defect
    10. material inner has versus solvent material, demolding agent 不妥, has versus solvent 油质
    11. use aluminum and other thin sheet/slice color agent
    12. fiber filler dispersion 布通顺贯通 defect
    13. has cold material  
    塑 parts 概况波纹: due to melt material mold 概况不 is 整洁勾当 filling type is formed semi solid 化波动状 in type 腔面勾当 or melt material has phenomenon.  
    separation 化:
    1. material temperature low, mold temperature low, nozzle temperature degree low
    2. injection pressure small, injection speed degree slow
    3. cold material 穴不妥, has cold material
    4. plastics property 差
    5. mold cooling system 不妥
    6.浇注 system process/workflow long, small, material dimensions small and its and 位不妥, make melt material retardant force, cooling fast
    7.塑 parts thin, large, outer complex
    8.供 material 不足
    9. runner 盘曲, narrow, light degree defect  
    demolding defect: due to filling strong/high, mold demolding property can defect and other 启事, make parts demolding or demolding rear parts deformation, 割裂, or parts 残留标 方针 separation design 请求.  
    separation 化:
    1. mold light degree defect
    2. mold demolding degree 不够
    3. mold block 处裂缝太 large flash
    4. formed 形时刻太 short or long
    5.模芯无进 gas 孔
    6. mold temperature degree or mold temperature degree separation 歧适
    7. mold has 创痕
    8. ejection machine defect
    9. injection pressure high, holding pressure long, material temperature and mold temperature high, material more, injection long, material dimensions large
    10. demolding agent 不妥
    11.拉 material 杆失灵
    12. nozzle and gate sleeve/set has material, gate sleeve/set mold sticking
    13. type deformation large, large, make parts in type inner
    14. cooling system defect, cooling 时刻太 long or short
    15.勾当 type demolding 不实时
    16.供 material 不足
    17. plastics property 脆, easy mold sticking, shrink short large
    18.塑 parts outer gas demolding, parts thick, thin or strong/high degree 不足, easy force in  
    云母 sheet/slice delamination 脱皮: due to mixed material or mold temperature low, melt material mold 概况勾 that 时剪切浸染 large, make material formed thin 层状剥落, material property can drop 落.  
    separation 化:
    1. separation plastics mixed 杂
    2.同一 plastics separation grade versus mixed
    3.塑化不匀
    4. mixed material
    5. material temperature low, mold temperature low, cold material small, material property 差, material cooling fast
    6. new material ratio 不妥
    7. silver streaks phenomenon heavy  
    gate mold sticking: due to gate sleeve/set inner has machine retardant force, cooling or material 杆失灵, make gate viscous in gate sleeve/set inner  
    1.浇道斜 degree 不够, has demolding agent
    2. cooling short, nozzle and mold temperature degree high, 浇道直径 large
    3.拉 material 杆失灵, cold material 穴
    4.主浇道 inner slip 腻, has 凹痕划伤
    5.浇道 and 主浇道毗连部 separation strong/high degree defect
    6. nozzle temperature degree low, nozzle and gate sleeve/set combined defect, gate sleeve/set ratio nozzle small or has material  
    cold block, block: due to has cold material or defect, has 未充实塑化 material, make parts inner has hard block plastics.  
    separation 化:
    1. material temperature, mold temperature and nozzle temperature degree low, injection speed degree small
    2.塑化不匀
    3. injection machine can force 不足, injection machine amount 濒临塑 parts separation amount, formed 形时刻 short
    4. mixed 入杂质 or separation and other material
    5. material 粒不匀 or large
    6.无主浇道 and cold material 穴, or cold material 穴 位不妥 
    transparent degree defect: due to melt material and mold 概况接触 defect, parts has fine micro 凹穴造 formed light 线乱放射 or plastics separation 化, has material 杂质, or mold 概况不亮 light, make transparent plastics transparent degree defect or 不匀.
    separation 化:
    1. mold temperature low, material temperature low and melt material and mold 概况接触 defect
    2. mold 概况不亮 light, has and water separation
    3. demolding agent amount or 不妥
    4. material temperature high or system 剪切浸染 large, plastics separation 化
    5. plastics in water separation high, has 杂质, strip/profile and silver streaks
    6.塑化 defect
    7. crystallization property material cooling defect, or parts thick 不匀 
    silver streaks 花纹: due to material inner has water separation or gas, and material amount, melt material 受剪切浸染 large, melt material and mold 概况密 combined defect, or speed cooling or mixed material or separation 化变质, make parts 概况沿 material 流标 方针闪现雪 white gloss strip/profile or sheet/slice 状花纹（ water 迹痕）.  
    separation 化:
    1. plastics temperature degree high, mold temperature high
    2. raw materials in water separation high, has low material
    3. injection pressure small
    4. material in gas, gas defect
    5. runner, material small, 剪切浸染 large （出格当 mold temperature low, material temperature low, injection pressure high, injection speed degree fast more large ）
    6. mold has water separation, light slip 油（此时塑 parts 概况呈 white 痕迹） or demolding agent amount, selection 不妥
    7. mold temperature low, injection pressure small, injection speed degree small melt material filling slow, cooling fast, easy formed white or white light thin 层（常 has cold 迹痕）
    8. melt material from thin 壁流入 thick 壁时膨胀, material gas and mold 概况接触 liquid formed silver streaks
    9.配 material 不妥, mixed material or versus solvent material （此时 easy generate delamination 离开） 
    warpage, deformation: due to formed 形时残存应 force, 剪切应 force, cooling force and shrink short 不均, formed internal stress; demolding defect, cooling 不足, parts strong/high degree 不足, mold deformation and other 启事, make parts generate outer 形畸变, warpage or type 孔偏, thick and other phenomenon.  
    separation 化:
    1. cooling 时刻不够
    2. mold temperature high
    3.塑 parts outer 形不妥, thick 不匀, strong/high degree 不足, parts dispersion 布不妥 and preheating defect
    4. material temperature low, nozzle and material small, injection pressure high, mold temperature low, injection speed degree high 时剪应 force large
    5. material temperature high, mold temperature high, material separation filling degree, holding pressure shrink large, injection pressure high 时残存应 force large （柱塞式 injection machine internal stress more large ）
    6.进 material 口 位不妥, dimensions small, material temperature low, mold temperature low, injection pressure small, injection speed degree fast, holding pressure shrink 不足,塑 parts outer defect, cooling 不匀纤疑缝 filler dispersion 布不匀 and other, make shrink short 标 方针 property relatively, shrink short 不匀
    7. mold temperature 不匀（定动模 mold temperature 不匀）, cooling 不匀如壁 thick separation cooling slow, thin separation cooling fast or parts easy 翘凸部 separation cooling fast, easy 凹弯部 separation cooling slow.
    8. plastics 塑化不匀, material filling or amount
    9. cooling short, demolding parts force 不匀, demolding rear cooling 不妥, parts rear defect, defect
    10. mold strong/high degree defect easy deformation, mold degree defect, 定位不 formed 靠, abrasion loss
    11.进 material 口 位不妥, material impact type or type 芯两侧受 force 不匀 
    cracks: due to parts internal stress large, demolding defect, cooling 不匀, plastics property can defect or parts design defect and its it short 处（如 deformation ） and other 启事, make parts and material 口四周 generate fine cracks, or cracking or in negative and solvent agent 浸染不 generate cracking and other phenomenon.  
    separation 化:
    1. demolding ejection defect
    2. mold temperature low or 不匀
    3. cooling 时刻太 long or cooling fast
    4.嵌 parts preheating or preheating 不够, or 荡涤不净
    5.塑 parts thin, demolding degree small, has and 缺口, easy force in
    6. formed conditions 不妥, force large （详见 warpage deformation ）
    7.进 material dimensions large and 情势不妥, material internal stress large
    8. demolding rear or rear rear cooling 不匀
    9. plastics property 脆, mixed material 杂质
    10. demolding agent 不妥
    11.ABS plastics or resistant impact polystyrene (PS) plastics in ejection easy generate white fine 纹（ 别经 hot can abrasion 灭）
    12. plastics shrink short 标 方针 property large or filler dispersion 布不匀
    13.塑 parts warpage deformation, defect
    14.塑 parts defect and solvent agent 接触 
    斑点, strip/profile: due to plastics separation or material in can property material, gas and other in low temperature low pressure lower separation 化焚烧, material melt material 注入塑腔, in parts 概况闪现斑点, strip/profile 纹, or parts 概况呈炭状烧伤 phenomenon.  
    separation 化:
    1. plastics separation 化（出格 for hot property plastics ）
    2. plastics 碎屑卡入柱塞 and material between 间隙
    3. material 筒, nozzle and in 死角贮 material separation 化
    4. material 筒荡涤不净
    5. mold gas defect or clamping force large
    6.进 material dimensions small, 位不妥
    7. plastics in or type 腔概况 has can property material
    8. water property plastics drying defect, hydrolysis 变黑
    9. material 粒不匀, add material amount less, material material temperature degree high, speed high, back pressure small, 塑化时 material in gas amount
    10.染 color has deep color material material, material 变质 
    light 华不匀 or color: due to material or filler dispersion defect, plastics or material color in parts light 华不匀. light 华不匀随闪现 phenomenon separation its 启事也 separation 歧, material 口四周主若 is material dispersion 布不匀, full parts light 华不匀时则 is plastics hot defect 而至, 熔接部位 light 华不匀时则 and material property has 关.  
    separation 化:
    1. aluminum or thin sheet/slice material, material 流标 方针 has gloss, material 口, 熔接部位 and more material 口时颜 material 无标 方针 property dispersion 布, light 华不匀
    2. use dry material, 滚筒搅拌时颜 material in material 粒概况
    3.颜 material quality good