Shanghai Daoqin Plastics Co., Ltd.

  ①  reduce liquid pressure temperature degree use cooling water amount small. 应检查 cooling water tube/pipe is has retardant phenomenon, troubleshooting fault/failure rear need add large cooling water amount.

      ②  inner parts abrasion loss heavy, as efficiency low, make 油泵体发 hot, liquid pressure temperature high. for 油泵进行检修.

      ③  liquid pressure system in pressure high. 应适当 reduce pressure.

      ④  回油卸 pressure separation, 应适当 adjustment, remove pressure high phenomenon.

      ⑤  liquid pressure system in tube/pipe and type parts 口径选配不当, formed retardant force large, make temperature rise high. can can tube/pipe in has material retardant effect/influence, 应检查 adjustment.

 

预塑 time long fault/failure analysis and troubleshooting method

（1） injection molding machine screw speed low, 应适当 improve/increase injection molding machine screw speed.

（2） injection molding machine material temperature degree control 不当, 应适当 adjustment injection machine material temperature degree.

（3） injection molding machine screw and material abrasion loss, 应检查 screw and material 筒

熔 material temperature degree low fault/failure analysis and troubleshooting method

（1） injection molding machine material temperature degree low. 应适当 improve/increase injection machine material temperature degree.

（2） injection molding machine nozzle temperature degree low, 应适当 improve/increase injection machine material temperature degree.

（3）预塑 pressure large, 应适当 improve/increase pressure.

（4） injection molding machine screw speed low, 应适应 improve/increase injection machine screw speed.

 

injection molding machine injection base/seat front rear speed degree 不平稳 causes and troubleshooting methods

      ①  liquid pressure in mixed has gas 体, make liquid pressure as pressure unstable, mixed gas amount increase, and tube/pipe in 会发出 non-uniform 声响. pressure table/sheet, can to table/sheet has relatively large 摆动. pressure unstable formed injection base/seat active 塞出现爬行运动.

      for/regarding this type of injection base/seat 不平稳运行 solutions lower.   

      a. 打开油缸 upper gas 阀, let active 塞做几次往复运动, troubleshooting gas 体, liquid pressure 油喷出 is 止.

      b. solid tube/pipe in 各连接部位, anti 止漏油.

      c. in 回, tube/pipe use sheet/plate separation 开.

      d. 清洗滤油网, add liquid pressure 油, ensure inner liquid pressure liquid in most high 位.

      ②  injection base/seat in upper sliding scratch retardant force large, this is due to versus for 运动 摩 scratch lubricated conditions defect formed; or is active 塞杆运动 and 导轨平面不平行, make injection base/seat retardant force increase.

      solutions lower.

      a. attention/notes 经常检查导轨 upper lubricated 油 注入, maintain injection base/seat and 导轨间 has good lubricated film formed, 应勤注油（2h left right one-time ）, amount need less, 避免污染 ring 境.

      b. if lubricated film strong/high degree high, can use degree relatively high lubricated 油.

      c. if is lubricated conditions 差, testing active is bending deformation, active and active is 否同心, 各部位密封圈 pressure is large and 检査校 positive active 塞杆运行 is and 导轨平面不平行 and other.

 

 

 

 

injection molding machine in parts how to assembly and precautions

      ①  清洗缸体, active and cover/cap, meanwhile remove 毛刺.   

      ②  testing inner and active outer 径 实际 dimensions is in H8/f8 or H8/f9配 combined degree scope/range inner.

      ③  testing 密封橡胶圈 and active 塞槽直径 dimensions. 密封橡胶圈装人 active 塞槽时, has tensile, 即橡胶圈直径（指 inner 圈）应略 small active 塞槽底径. has 挡圈时, meanwhile 装入挡圈.

      ④  active and active 塞, parts need 靠严, meanwhile add 密封橡胶圈, rear uniform solid 螺母.

      ⑤  active in 油缸体 inner 试装, sliding active, force uniform, can 装油缸端 无孔端 cover/cap.

      ⑥  in assembly toward sleeve/set cover/cap 时, need testing active 塞杆直径 and toward sleeve/set inner 孔 实际 dimensions, combined H8/h8配 combined degree requirements. combined 格, toward sleeve/set and active has sleeve/set 时, 应先装入隔 sleeve/set, meanwhile add 密封橡胶圈. rear solid. attention/notes: solid need use force uniform, meanwhile active 塞杆, 以推动 light 松, active, force uniform is combined 格.

      ⑦  liquid pressure 油进出油口 upper 连接油嘴

 

injection molding machine liquid pressure 传动工 as large causes and troubleshooting methods is what?

      ① 油泵 abrasion loss heavy, make liquid pressure 传动噪声 large. for 油泵检修.

      a. can can inner surface abrasion loss heavy.

      b. 转子轴 use bearings loss bad.

      c. sheet/slice retardant 滞, method positive sliding.

      d. electrical machine 基础不牢, generate 振动.

      ②  retardant 塞, 油泵工 as 吸油困 difficult. 应清洗 滤网.

      ③  temperature control 不当, high or low temperature, can make liquid pressure 传动不 can positive as. attention/notes control temperature degree in 15～55℃ scope/range inner.

      ④  liquid pressure degree high, flow retardant force large, 应适当调换黏 degree low liquid pressure 油.

      ⑤  liquid pressure system in control abrasion loss heavy, or in has material, formed can positive as, is make liquid pressure 传动工 as generate relatively large factors. necessary and repair.

      ⑥  liquid pressure in mixed has more gas, attention/notes positive production front 应排出 tube/pipe in gas.

      ⑦  贮油箱安装不当, has generate 振动, or is in liquid pressure amount and tube/pipe in liquid pressure liquid outer, generate foam, make in mixed gas and other, is make liquid pressure generate causes. production front need add liquid pressure 油, liquid maintain in high 位.

      liquid pressure as in liquid pressure pressure unstable and liquid pressure 油 流 amount causes, basic upper and upper inner effect/influence has 关, can 参照逐项 analysis, main/primary causes, 并进行 repair troubleshooting

 

injection molding machine liquid pressure fault/failure causes and repair methods

injection molding machine liquid pressure abrasion loss, fault/failure causes and methods

1  abrasion loss fault/failure causes:

      ①  圆柱形阀芯, long in inner versus sliding scratch 运动, formed 阀体腔 inner and outer abrasion loss. combined parts abrasion loss, increase, make liquid pressure in inner 渗漏流窜 amount add large, formed 阀芯换 toward reaction 运动迟缓, heavy can as.

      ②  in liquid pressure pressure function lower, sliding impact force relatively large, long in 此情况 lower as, make 阀芯钢球 or 锥形芯 and base/seat 间, impact force function abrasion loss or deformation, formed as liquid pressure inner 漏.

      ③  inner elastic long frequency shrink as, formed elastic material fatigue deformation or in high temperature function lower make elastic elastic property 改变.

      ④  and inner manufacturing degree low, assembly rear combined parts combined degree requirements; or is in comparison more, formed in 阀体腔 inner as active, reaction as or has phenomenon.   

      ⑤  tube/pipe 路不通畅（ tube/pipe 路堵塞 has material or as to 位）, generate back pressure, make toward can as or as 迟缓.

      ⑥  三位四通换 toward in, due to elastic pressure and other, make slip 阀芯 动 as method in in 间位置, toward as 不准确, reaction 迟缓. electrical magnetic iron magnetic force and other, easy generate upper 述情况.

2  abrasion loss fault/failure methods:

      ①  is 钢球体, abrasion loss rear already 不圆, more new 钢球.

      ②  for/regarding 锥形阀芯 abrasion loss, can use fine 油石修 abrasion loss 伤部位; 锥形阀 base/seat abrasion loss, can use has 120°锥角 fine 油石研 abrasion. if abrasion loss relatively deep, use 120°锥角钻头, light micro 刮钻 掉 deep rear, again use fine 油石研 abrasion.

      ③  for/regarding 圆柱形阀芯 abrasion loss, due to 圆柱阀体空腔 abrasion loss rear increase large, therefore, 阀芯必 must heavy new manufacturing, new manufacturing outer 径应按阀 base/seat inner abrasion rear 直径配 made. inner abrasion rear, its degree and degree is 0.005mm, and base/seat inner 腔 配 combined 间隙应 maintain in 0.01~0.025mm scope/range inner.

      ④  inner elastic generate fatigue property deformation or loss bad 时, elastic more 换. new more elastic structure 形状, dimensions and elastic manufacturing material and hot process conditions and other, need and use elastic same.

      ⑤  节流阀 abrasion loss, make and base/seat sliding combined add large, generate liquid pressure inner phenomenon, make 节流工 as 效果不佳. this type of phenomenon 时, application 油石研 abrasion base/seat loss 伤部位并 heavy new manufacturing 阀芯. new 阀芯按研 abrasion rear base/seat made, ensure parts combined in 0.006?0.012mm scope/range inner.

      ⑥  for/regarding toward abrasion loss and fault/failure 修复, if is elastic elastic force non-uniform, make 阀芯不 can in positive 确 工 as 位置, more new elastic 簧. if is electrical magnetic iron magnetic force 不均, can through repair solution. if is abrasion loss, can 按③办 method 修配, attention/notes ensure and base/seat inner assembly in 0.006～0.012mm scope/range inner.

combined assembly injection molding machine sheet/slice 泵

injection molding machine sheet/slice how to assembly
      

    ①  true 清洗各 parts, 修掉各 parts upper and material 锈斑.
      ②  testing sheet/slice and upper wide degree dimensions, ensure parts combined in 0.013～0.018mm scope/range inner. sheet/slice in inner sliding active.
      ③  selection 一组叶 sheet/slice, high degree dimensions need versus 接近, versus and other dimensions in 0. 008mm scope/range inner.
      ④  in inner sheet/slice, high degree low deep, in 0.005mm left right.   
      ⑤  attention/notes and sheet/slice 应按原拆卸 direction 装入定子 inner.
      ⑥  assembly rear 转子端面 and 配油盘端面  间隙应 control in 0.04～0.07mm scope/range inner.
      ⑦  各连接螺栓 need solid force uniform, use 手转动转子时, 转动均衡, 无卡紧 retardant phenomenon is combined 格.

injection molding machine sheet/slice in 配油盘 abrasion loss causes and methods:
      (1)  配油盘 abrasion loss causes
      配油盘 inner surface and 孔径部 separation abrasion loss and abrasion loss causes same, is due to 转子 轴 toward generate parts versus scratch 结果.
      (2)  配油盘 abrasion loss 修复
      配油盘 abrasion loss 修复, 应按平面 abrasion loss 状况 决定修复 methods. if is light micro 划伤, can in specialized sheet/plate upper abrasion 修复; for/regarding comparison heavy abrasion loss, in upper 切削修平. amount can 掉伤痕 is 准, amount less good, 以避免 effect/influence 配油盘 工 as strong/high degree, deformation. processing rear 两平面 不平行 degree and and in 心线 不垂直 degree large 于0.Olmm.