Pipe Production Line recurring illnesses approach:

1 , the outer tube extruder has a focal signs or nose can cause the body temperature is too high ; nose and did not clean the filter clean ; grain guess impurities ; material poor heat stable or heat stable doses too small ; temperature control instrumentation failure.

2 pipe extruder can cause the appearance of a black striped head temperature is too high, do not clean the filter clean .

3 pipe extruder can dull the appearance of the die temperature is too low or too high.

4 exterior pipe extruder die wrinkles near the temperature can be uneven ; cooling water is too hot ; traction too slow.

5 extruder pipe wall roughness can be lower mandrel temperature ; body temperature is too low ; screw temperature.

6 extruder pipe wall cracks can be expected to have impurities ; mandrel temperature is too low ; body temperature is low ; traction too fast.

7 extruder screw tube wall can have uneven temperature ; screw speed is too fast .

8 extruder feed tube wall can damp air bubbles .

9 extruder uneven wall thickness can die , mandrel no positive ; nose uneven temperature ; traction is not stable ; compressed air is not secure. 10 , pipe turns pipe wall thickness can be uneven ; nose near uneven temperature ; 1 head cooling tank , traction cut with no alignment ; different cooling trough two holes heart.

10 extruder products brittle body plasticization can not ; screw speed is too fast ; die temperature is too low ; resin viscosity is too high . 12 , vertical or horizontal pipe sizing can shorten the large radial die inside diameter of the sleeve and a large difference (horizontal ) ; high traction speed ( vertical ) .

11 extruder screw can sometimes slow the material feed zone temperature is high ; body water ; small head melt pressure.