Generally, the screw appearance low temperature, may be caused by the following two points: (1) There is a problem with the thermocouple or the platinum resistance, or poor contact with the temperature measurement point. The treatment method: replace the thermocouple, clean the temperature measurement hole, and ensure good contact. (2) The thermocouple control circuit is too long, or the signal line shielding is poor, and the temperature controller is faulty. The treatment: maintenance, improvement. Calibrate the temperature controller with a mercury glass thermometer and correct it step by step.
If you have any problem about temperature of plastic extruder screw , can write to us , our engineer can help you .