Shanghai Daoqin Plastics Co., Ltd.

名　　称塑 parts 不足: main/primary due to material 不足, melt material filling flow defect, gas more and gas defect and other causes filling type melt material filling flow defect, gas more and gas defect and other causes filling type 腔不满, parts outer 形残缺不完整 or more type 腔时 别 type filling 不满原　　因　　 separation 　　析1. injection amount 不当, add material amount 不足, can force and material 不足2. plastics degree different or 不匀3. plastics in material in “架桥”4. material in lubricant more, screw or and material 筒间隙 large, melt material more 5. more type 腔时进 material balanced defect 6. nozzle temperature degree low, or small, material temperature degree low 7. injection pressure small, injection time short, holding pressure time short, screw or 柱塞退回 早8. injection speed degree fast or slow 9. plastics flow property 太差10. flash material more 11. mold temperature low, plastics cooling fast 12. injection molding parts mold system flow retardant force large, material 口位置不当, small, defect, process/workflow long 而曲折13.排 gas defect, cold material or cold material 穴不当14. demolding agent more, type has water separation and other 15.塑 parts thin, complex 且面积 large 16. plastics inner water separation and material more 17. melt material in gas more 　 　 dimensions unstable: main/primary due to injection molding parts mold strong/high degree defect, degree defect, injection machine as unstable and formed conditions unstable and other causes, make parts dimensions unstable 　 　　1. machine electrical or liquid pressure system unstable 2. formed conditions unstable （ temperature degree, pressure, time more ）, formed cycle 不一致 　3. injection molding parts mold strong/high degree 不足, 定位杆 bending, abrasion loss 4. injection molding parts mold degree defect, active parts as unstable, 定位不准确5. injection molding parts mold clamping unstable 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 time short, demolding rear cooling 不匀10.回 use material and new material ratio 不当11. plastics shrinkage unstable, crystallization property material crystallization degree unstable 12.塑 parts rigid property defect, thick 不匀13.塑 parts rear conditions unstable 　　 bubbles: due to melt material inner gas more or gas defect 而导致塑 parts inner gas 体, 并呈体积 relatively small or formed 串 空穴（ attention/notes and true difference ）1. raw materials water separation, solvent agent or easy material 2. material temperature high, add hot time long, plastics drop poly separation understanding 3. injection pressure small 4.柱塞 or screw 退回 早5. injection molding parts mold gas defect 6. mold temperature low 7. injection speed degree fast 8. injection molding parts mold type inner has water separation, 油脂, or demolding agent 不当9.塑 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 shrinkage large 时1. runner, material small, or amount 不够2.塑 parts thick or thick thin 不均（ in thick 壁处背部 easy 出现塌坑）3.进 material 口位置不当, 不利于供 material, shrink 4. material temperature high, mold temperature high, cooling time 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 time short 8. add material amount 不够, material 不足, material 不够9. melt material flow defect or material more flash large: due to clamping defect, large, plastics flow property good, add material more make parts 沿边缘 extrusion more thin sheet/slice 　1. separation type combined defect, type and type separation sliding parts large 2. injection molding parts mold strong/high degree or rigid property defect 3. injection molding parts mold degree defect 4. injection molding parts 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 不平行6.塑 parts 投影面积 ultra- injection machine 允许 塑 made 面积7. plastics flow property large, material temperature high, mold temperature high, injection speed degree fast 8. add material amount large defect: due to melt material separation combined material temperature low, resin and combined material versus solvent and other causes, make melt material in combined 时, defect, parts surface or internal generate obvious fine 接缝线 　 　1. material temperature low, mold temperature low 2. injection speed degree slow, injection pressure small 3.进 material more, 位置不当, system 形式不当, process/workflow long, material retardant force large, material temperature decline fast 4. injection molding parts mold cooling system 不当5.塑 parts defect, thin, parts more and thick 不匀, make material in thin 壁处汇 combined 6.嵌 parts temperature degree low 7. plastics flow property 差, cooling speed degree fast 8. injection molding parts mold inner has water separation, lubricant, melt material gas more, demolding agent more 9. injection molding parts mold gas defect 10. material inner has versus solvent material, demolding agent 不当, has versus solvent 油质11. use aluminum and other thin sheet/slice color agent 12. fiber filler distribution melt combined defect 13. has cold material parts surface 波纹: due to melt material injection molding parts mold surface is flow filling type is formed semi solid 化波动状 in type flow or melt material has phenomenon 　1. material temperature low, mold temperature low, nozzle temperature degree low 2. injection pressure small, injection speed degree slow 3. cold material 穴不当, has cold material 4. plastics flow property 差5. injection molding parts mold cooling system 不当6.浇注 system process/workflow long, small, material dimensions small and its and 位置不当, make melt material flow retardant force, 　 cooling fast 7.塑 parts thin, large, complex 8.供 material 不足9. runner 曲折, narrow, light degree defect 　 demolding defect: due to filling function strong/high, injection molding parts mold demolding property can defect and other causes, make parts demolding difficult or demolding rear parts deformation, 破裂, or parts direction combined design requirements. 1. injection molding parts mold light degree defect 2. injection molding parts mold demolding degree 不够3. injection molding parts mold block 处缝隙太 large flash 7. injection molding parts mold surface has 伤痕8. ejection machine defect 9. injection pressure high, holding pressure time long, material temperature and mold temperature high, material more, injection time long, material dimensions large 10. demolding agent 不当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 time long or short 15. active type demolding and 时16.供 material 不足17. plastics property 脆, easy mold sticking, shrinkage large 18.塑 parts 形状不利 demolding, parts thick, thin or strong/high degree 不足, easy force in sheet/slice delamination 脱皮: due to mixed material or mold temperature low, melt material injection molding parts mold surface flow 时剪切 function large, make material formed thin 层状剥落, physical properties decline 1. different plastics mixed 杂2.同一 plastics different grade versus mixed 3.塑化不匀4. mixed material 5. material temperature low, mold temperature low, cold material small, material flow property 差, material cooling fast 6. new material ratio 不当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 time 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 light slip, has 凹痕划伤5.浇道 and 主浇道连接部 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 separation material, make parts inner has hard block plastics 　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 接近塑 parts weight, formed time short 4. mixed 入杂质 or different product grade material 5. material 粒不匀 or large 6.无主浇道 and cold material 穴, or cold material 穴位置不当 transparent degree defect: due to melt material and injection molding parts mold surface defect, parts surface has fine small 凹穴造 formed light 线乱放射 or plastics separation understanding, has material 杂质, or injection molding parts mold surface light 亮, make transparent plastics transparent degree defect or 不匀1. mold temperature low, material temperature low and melt material and injection molding parts mold surface defect 2. injection molding parts mold surface light 亮, has and water separation 3. demolding agent more or 不当4. material temperature high or system function large, plastics separation understanding 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 silver streaks 斑纹: due to material inner has water separation or gas, and material more, melt material 受剪切 function large, melt material and injection molding parts mold surface combined defect, or speed cooling or mixed material or separation understanding 变质, make parts surface material direction 出现银 white gloss strip/profile or sheet/slice 状斑纹（ water 迹痕）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, function large （ especially mold temperature low, material temperature low, injection pressure high, injection speed degree fast more large ）6. injection molding parts mold surface has water separation, lubricated 油（此时塑 parts surface white 痕迹） or demolding agent more, selection 不当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 injection molding parts mold surface liquid formed silver streaks 9.配 material 不当, mixed material or versus solvent material （此时 easy delamination 脱离） warpage, deformation: due to formed residual stress, 剪切应 force, cooling force and shrinkage 不均, formed internal stress; demolding defect, cooling 不足, parts strong/high degree 不足, injection molding parts mold deformation and other causes, make parts 发生形状畸变, warpage or type 孔偏, thick and other phenomenon 1. cooling time 不够2. mold temperature high 3.塑 parts 形状不当, thick 不匀, strong/high degree 不足, parts distribution 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 function separation, holding pressure shrink large, injection pressure high 时残余应　 force large （柱塞式 injection machine internal stress more large ）6.进 material 口位置不当, dimensions small, material temperature low, mold temperature low, injection pressure small, injection speed degree fast, holding pressure shrink 　不足,塑 parts defect, cooling 不匀纤疑缝 filler distribution and other, make shrinkage direction property obvious, shrinkage 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 塑　 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 time short, demolding parts force 不匀, demolding rear cooling 不当, parts rear defect, defect 10. injection molding parts mold strong/high degree defect easy deformation, injection molding parts mold degree defect, 定位不 can 靠, abrasion loss 11.进 material 口位置不当, 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 弊病（如 deformation ） and other causes, make parts surface and material 口附近 generate fine cracks, or cracking or in negative and solvent agent function 不发生 cracking and other phenomenon 1. demolding ejection defect 2. mold temperature low or 不匀3. cooling time long or cooling fast 4.嵌 parts preheating or preheating 不够, or 清洗不净5.塑 parts thin, demolding degree small, has and 缺口, easy force in 6. formed conditions 不当, force large （详见 warpage deformation ）7.进 material dimensions large and 形式不当, material internal stress large 8. demolding rear or rear rear cooling 不匀9. plastics property 脆, mixed material 杂质10. demolding agent 不当11.ABS plastics or resistant impact polystyrene (PS) plastics in ejection easy white fine 纹（ generally hot 烘即　 can 消失）12. plastics shrinkage direction property large or filler distribution 不匀13.塑 parts warpage deformation, defect 14.塑 parts tube/pipe defect and solvent agent 接触　 black spots, strip/profile: due to plastics separation understanding or material in can property material, gas and other in high temperature high pressure lower separation understanding 燃烧, material melt material 注入塑腔, in parts surface black spots, strip/profile 纹, or parts surface 呈炭状烧伤 phenomenon 1. plastics separation understanding （ especially for hot property plastics ）2. plastics 碎屑卡入柱塞 and material between 间隙3. material 筒, nozzle and injection molding parts mold has 死角贮 material separation understanding 4. material 筒清洗不净5. injection molding parts mold gas defect or clamping force large 6.进 material dimensions small, 位置不当7. plastics in or type surface 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 　 more 10.染 color has deep color material material, material 变质　 color 泽不匀 or color: due to material or filler distribution defect, plastics or material color in parts surface color 泽不匀. color 泽不匀随呈现 phenomenon different its causes different, material 口附近 main/primary is material distribution 不匀, parts color 泽不匀时则 is plastics heat stabilized defect 致, 熔接部位 color 泽不匀时则 and material property has 关1. aluminum or thin sheet/slice material, material direction has gloss, material 口, 熔接部位 and more material 口时颜 material direction property distribution, color 泽不匀2. use dry material, 滚筒搅拌时颜 material in material surface 3.颜 material quality good 4.柱塞式 injection machine easy color 泽不匀5.塑化不匀6.纤缝 filler distribution 不匀, poly outer or parts and solvent agent resin solvent 失, 纤缝裸露7. plastics or material separation understanding 8. injection molding parts mold surface has water separation, or demolding agent 不当, more 9. plastics and material in mixed material 10. crystallization degree low or parts thick 不匀, effect/influence transparent degree formed color 泽不匀塑 parts 脆裂: due to plastics defect, direction property obvious, internal stress large and parts structure defect, make parts strong/high decline, easy 裂（ especially material direction more easy cracking ）1. plastics property can defect or separation understanding drop poly or hydrolysis or material defect and 变质2. formed temperature degree low 3.熔接 defect, warpage deformation 4. plastics wet or moisture content low （如 nylon 6 ）5. plastics use material more or material 不足6. mold temperature low 7.塑 parts design defect strong/high degree 不够, has and 缺口8. metal parts 包裹层 plastics thin, parts preheating 不够, 清洗不净9. plastics inner has and versus solvent material 10.塑化 defect or material large and 不匀11. demolding agent 不当, injection molding parts mold 不净12. shrinkage direction property obvious, filler distribution 不匀13. shrinkage 不匀, cooling defect and residual stress and other, make internal stress large 14.塑 parts and solvent agent 接触15.进 material dimensions and and defect, formed internal stress large, direction property obvious, filler distribution 不匀, 纤　缝 filler loss or in parts bending force 部位设进 material 口. 4. formed time short or long 5.模芯无进 gas 孔6. injection molding parts mold temperature degree or mold temperature degree combined 适