Shanghai Daoqin Plastics Co., Ltd.

        一, scorching/burn marks

        1, scorching/burn marks phenomenon

        (1) temperature degree ultra-high, or is control temperature degree table/sheet 失灵, formed plastics ultra-high temperature scorching/burn marks.

        (2) machine 头 出胶口烟雾 large, has strong/high 烈 刺激 odor, another also has 噼啪声.

        (3) plastics surface pellets scorching/burn marks material.

        (4) combined 胶缝处 has gas 孔.

        2, generate scorching/burn marks causes

        (1) temperature degree control ultra-high formed plastics scorching/burn marks.

        (2) screw long use has 清洗, scorching/burn marks material 积存, plastics extrusion.

        (3) add temperature time long, plastics material long add temperature, make plastics aging 变质而 scorching/burn marks.

        (4)停车 time long, has machine and screw, formed plastics separation understanding scorching/burn marks.

        (5) more 次换模 or color, formed plastics separation understanding scorching/burn marks.

        (6) machine pressure cover/cap has pressure 紧, plastics in aging separation understanding.

        (7) control temperature degree table/sheet 失灵, formed ultra-high temperature rear scorching/burn marks.

        3, troubleshooting scorching/burn marks methods

        (1)经常 检查 add temperature system is positive 常.

        (2)定期 清洗 screw or machine 头, need 彻底清洗 dry 净.

        (3)按 process requirements add temperature, add temperature time long, if add temperature system has issues need and has 关人员 solution.

        (4)换模 or color need and 时, dry 净, anti color or scorching/burn marks.

        (5) adjustment good mold rear need sleeve/set pressure cover/cap pressure 紧, anti 止进胶.

        (6)发现 scorching/burn marks 应立即清理 machine and screw.

         this copper filament is copper high temperature processing!

        二, defect

        1, defect phenomenon

        (1) plastics surface has 蛤蟆皮式 phenomenon.

        (2) temperature degree control relatively low, table/sheet 指针反映 temperature degree low, 实际测 amount temperature degree low.

        (3) plastics surface 发乌, has micro small cracks or has good small pellets.

        (4) plastics combined combined good, has strip/profile obvious 痕迹.

        2, defect generate causes

        (1) temperature degree control low or control combined 适.

        (2) plastics in has difficult resin pellets.

        (3)操 as methods 不当, screw and speed degree fast, plastics has full to 塑化.

        (4) pelletizing plastics mixed combined non-uniform or plastics 本身存 in quality issues.

        3, troubleshooting defect methods

        (1)按 process control good temperature degree, temperature degree low need temperature degree high.

        (2) need reduce screw and speed degree, make plastics add temperature and time growth, improve/increase plastics 塑化 效果.

        (3) utilizing screw cooling water, add strong/high plastics and property.

        (4)选配 mold 时, sleeve/set small, add strong/high 出胶口 pressure.

        三, 疙瘩

        1, generate phenomenon

        (1) resin in process in generate 疙瘩, in plastics surface has small and small pellets, distribution in plastics surface 四周.

        (2) scorching/burn marks generate 疙瘩, in plastics surface has scorching/burn marks material, especially in combined surface upper.

        (3)杂质疙瘩, in plastics surface has 杂质, sheet/slice 疙瘩里面 has 杂质.

        (4)塑化 defect generate plastics 疙瘩, sheet/slice rear 发现疙瘩里面 is 熟胶.

        2, generate causes

        (1) due to temperature degree control relatively low, plastics also has good from machine extrusion.

        (2) plastics quality relatively 差, has difficult resin, this has full 塑化就 by extrusion.

        (3) add material 时一 杂质 by add material inner, formed 杂质疙瘩.

        (4) temperature degree control ultra-high, formed scorching/burn marks, from generate scorching/burn marks 疙瘩.

        (5) for pressure cover/cap has pressure 紧, rear aging 变质, scorching/burn marks 疙瘩.

        3, troubleshooting methods

        (1) plastics 本身造 formed 疙瘩, 应适当 improve/increase temperature degree.

        (2) add material 时严格检查 plastics is has material, add material need its it material add material inner, 发现杂质 need 立即清理 machine 头, screw inner 存胶跑净.

        (3)发现 temperature degree ultra-high need 立即适当 reduce temperature degree, if 效果不见 good, need 立即清洗 machine and screw, troubleshooting scorching/burn marks material.

        (4)出现 resin and defect 疙瘩, need 适当调 high temperature degree or reduce screw and speed degree.

        四, plastics positive negative ultra- 差

        1, generate ultra- 差 phenomenon

        (1) screw and speed degree 不稳, electrical table/sheet or electrical pressure table/sheet left right 摆动, therefore effect/influence cable outer 径, generate plastics 层 偏差.

        (2) semi formed product quality has issues, belt/tape or plastics belt/tape 绕包松, generate non-uniform phenomenon or plastics has 包, 棱, and other defect.

        (3) temperature degree control ultra-high, formed extrusion amount decrease/reduce, make cable outer 径突然变 fine, plastics thin, formed negative 差.

        2, generate ultra- 差 causes

        (1)线芯 or 缆心不圆, also has 蛇形, outer 径变化太 large.

        (2) semi formed product has quality issues, 如: belt/tape 接头不 good, belt/tape sleeve/set, belt/tape 卷边, plastics belt/tape sleeve/set, large, dispersion and other.

        (3)操 as 时, 模芯选配 large, formed 倒胶而 generate plastics 层偏芯.

        (4) adjustment mold 时, 调模螺钉没 has 扭紧, generate phenomenon make plastics 层偏芯.

        (5) screw or speed degree 不稳, formed ultra- 差.

        (6) add material or 滤网部 separation 堵塞, formed amount decrease/reduce 而出现 negative 差.

        3, troubleshooting ultra- 差 methods

        (1)经常测 amount cable outer and plastics thick degree, outer 径变化 or plastics non-uniform, 应立即 adjustment.

        (2)选配 mold need combined 适, good mold rear need 调模螺钉拧紧, pressure cover/cap pressure 紧.

        (3) attention/notes screw and electrical and electrical pressure table/sheet, 发现不稳, need and electrical 工, 钳工检修.

        (4)不 need strip/profile material or its it material add material inner, 若发现此情况 need 立即清 remove.

        五, cable outer coarse fine and 竹节形

        1, generate coarse fine and 竹节形 phenomenon

        (1) due to screw or 牵引不稳, formed cable outer coarse fine 不均.

        (2) due to 牵引突然不稳, formed cable plastics and other 呈竹节形.

        (3) mold relatively small, semi formed product outer 径变化 relatively large, formed cable plastics thick degree 不均.

        2, generate coarse fine and 竹节形 causes

        (1)收放线 or speed degree 不均.

        (2) semi formed product outer 径变化 relatively large, mold 选配不 combined 适.

        (3) screw speed degree 不稳, electrical machine speed 不均, belt/tape or slip.

        3, troubleshooting coarse fine and 竹节形 methods

        (1)经常检查 screw, 牵引, 收放线 speed degree is uniform.

        (2) mold need combined 适, anti 止倒胶 phenomenon.

        (3)经常检查 machine and electrical appliances 运转情况, issues need 立即找钳工, electrical 工修理.

        六, combined 胶缝不 good

        1, combined 胶缝不 good phenomenon

        (1) in plastics surface outer 侧, plastics combined 并 不 good, has strip/profile combined 痕迹, heavy has cracks.

        (2) plastics combined 胶处塑化不 good, has combined micro small pellets, heavy use 手一撕即开.

        (3) control temperature degree relatively low, especially is machine control temperature degree relatively low.

        2, combined 胶缝不 good causes

        (1) control temperature degree relatively low, defect.

        (2) machine long use, formed heavy abrasion loss.

        (3) machine temperature degree control 失灵, formed low temperature, make plastics combined good.

        3, troubleshooting combined 胶缝不 good methods

        (1)适当 improve/increase control temperature degree, especially is machine control temperature degree.

        (2) machine outer using/adopting temperature plant/unit 进行保 temperature.

        (3) add 两层 滤网, increase pressure, improve/increase plastics 塑化程 degree.

        (4)适当 reduce screw 贺牵引 speed degree, make plastics time long, to plastics combined 缝 目.

        (5) add long mold 承线径, increase extrusion pressure and temperature degree.

        七, its it defect

        1, gas 孔, bubbles or gas 眼

        (一) generate causes

        (1) local control temperature degree ultra-high.

        (2) plastics wet or has water separation.

        (3)停车 rear plastics in more gas has troubleshooting.

        (4)自然 ring wet.

        (二) troubleshooting methods

        (1) temperature degree control need combined 适, temperature degree ultra-high need adjustment, anti local temperature degree ultra-high.

        (2) add material need 严格 检查 plastics quality, especially is anionic 雨季节, 发现潮 wet has water, 应立即停止 use, rear material 跑净.

        (3) in add material increase preheating plant/unit, remove plastics in gas and water separation.

        (4)经常取样检查 plastics is has gas 孔, gas and bubbles.

        2, or 断胶

        (一) generate causes

        (1) conductive has water or has 油

        (2)线芯太 heavy and local 接触, formed temperature degree reduce, make plastics local cooling, due to plastics tensile formed or 断胶.

        (3) semi formed product quality relatively 差, belt/tape and plastics belt/tape sleeve/set, 接头不牢 or large.

        (二) troubleshooting methods

        (1) mold need large, especially is 选配护 sleeve/set mold, need large 6 to 8mm.

        (2)适当 shrink small 模芯嘴 long degree and thick degree.

        (3) reduce screw and speed degree.

        (4)适当调 high machine control temperature degree.

        3, and 眼

        (一) generate causes

        (1)紧 pressure conductive 线芯绞 combined 不紧密, has 空隙.

        (2)线芯 has water, has 油, has material.

        (3) semi formed product has defect, 如绞线支出, pressure 落, 交叉, 打弯, belt/tape and plastics belt/tape heavy combined, sleeve/set, ultra- large and other.

        (4) temperature degree control relatively low.

        (二) troubleshooting methods

        (1)绞 combined 导体 紧 pressure need combined process 规定.

        (2) semi formed product combined quality requirements, 应处理 good rear again production.

        (3)清 remove material, or need preheating.

        4, plastics 层起包, 棱角, 耳朵, and 凹凸

        (一) generate causes

        (1) plastics belt/tape and belt/tape 绕包 造 formed quality issues.

        (2) mold large, true rear formed.

        (3)模芯 loss bad rear generate plastics 倒胶.

        (4)线芯太 heavy, plastics cooling good.

        (二) troubleshooting methods

        (1)检查 semi formed product product quality, combined product production.

        (2) assembly front need mold, issues need rear again use.

        (3) mold need combined 适. reduce speed degree, is plastics full cooling.

        5, plastics surface 出现痕迹

        (一) generate causes

        (1)模 sleeve/set 承线径 surface light slip or has 缺口.

        (2) temperature degree control high, plastics hard acid separation understanding, in sleeve/set 口处造 formed 痕迹.

        (二) troubleshooting methods

        (1)选配 mold need 检查模 sleeve/set 承线径 surface is light slip, has defect 应处理.

        (2) machine add temperature temperature degree reduce, generate hard acid rear need 立即清 remove.