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同行平行双螺杆挤出造粒机在切粒部分出现的故障有哪些?
添加时间:2020-05-21 11:48:08 浏览次数:323

同行平行双螺杆挤出造粒机在切粒部分出现的故障有哪些?

Strand pelletizing Φ3*3 column shape pellet

双螺杆挤出机水冷拉条切粒

Φ3*3圆柱形

·Strands are too thin or too thick

料条太细或太粗

·Reduce or increase the pelletizer speed, clean the die plate

减小或增大切粒速度,清理模板

·Lengths of pellets are not in uniform

切出的粒子长短不均匀

·Fix the position of feeding strands, avoid strands to sway

固定喂料条的喂入位置,避免摇摆

·End of pellets is not smooth

料子端面光滑

·Adjust the clearance between rotating knife and fixed knife 

调整动刀和定刀之间的间隙

·Pellets shape is flat

切出粒子成扁平状

·The pressure of roller is too heavy. Adjust the air pressure or spring pressure

压辊的压力太大,调节气压或弹簧压力

·Strands cannot be cut off

料条不能切断

·The temperature of strands is too high. Increase the distance between main machine and pelletizer, or add another air knife, or increase cooling water circulation in the tank

料条温度太高增加主机和切粒机之间的距离

·Strands broken easily

容易断条

·Material are not well plasticized or too many contaminations, or change screw configuration

物料塑化不完全或含太多的杂质,或考虑螺杆组合是否合适

Air-cooling pelletizing Φ3*3 mm Table or ball

双螺杆挤出造粒机风冷热切

Φ3*3 mm药片状或球状

 

·Length of pellets are not in uniform

粒子长度不一

·Some holes of die plate are blocked, stop the mahine and clean die-head. When the melt comes out in the same speed, start up the pelletizer at low speed and increase to normal speed

局部出条孔堵塞,停机,拆下模头快速清理。

等模条出料均匀再从低速启动切粒机至正常转速

·Pellets stick to each other

粒子粘在一起

 

·Check if the knives touch close to die-face and if the knife stick shakes. If the melt temperature is too high, reduce the temperature of each zone or spray water

检查刀具是否紧贴模面,刀杆是否摆动。料温过高,适当降低各区设定温度或补喷水雾

·Products cannot come out from the cyclone separator

旋风分离器不出料

 

·Take off the first elbow pipe to clean, keep the pipes smooth

拆下风管第一节弯头,及时清理,保持管道畅通

·End of pellets is not smooth

粒子端面不光滑

 

·Mill or change the knives. Check if all knives touch close to the die-face

修磨或更换切刀,检查是否所有的刀片都紧贴模面

Water-ring pelletizing similar to small balls or Φ3mm

双螺杆挤出造粒机水环造粒

Φ3mm近似球型

·Length of pellets not in uniform

粒子长短不一

·Could be some holes of die plate may blocked, so clean the die plate

可能是部分出料孔堵塞,清理模板

·Pellets stick to each outher

粒子粘在一起

 

·Check if the knives touch closed to the die-face or melt temperature id too high. So reduce the temperature of each zone

检查切刀是够紧贴模面或者熔体温度太高,降低各区温度

·End of pellets is not smooth

粒子表面不光滑

·Mill or change the knives. Check if all knives touch close to the die-face

修磨或更换切刀,检查是否所有刀片都紧贴模面

Under-water pelletizing Similar to small balls of Φ3mm

塑料造粒机水下造粒

近似Φ3mm球型

 

 

·Pellets stick each other and block the pipe

粒子粘在一起并堵塞了管道

·The temperature of die-head too high, adjust the pelletizer speed and cooling water flow to match the output.

模头温度太高,调节切粒速度和冷却水的流量,与主机的产量匹配

·Melt does not come out in same speed

模头出料不均匀

·Some heater pipes are not working properly. Contamination in the melt. Main machine output too low.

局部加热管损坏,物料中含有杂质堵塞模孔,主机产量过低


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