Bubble problem in the cross-section of the insulating layer of the plastic extruder

​ The plastic extruder is a device that relies on the pressure and shear force generated by the rotation of the screw, which can fully plasticize and evenly mix the material, and form it through the die. Next, let's talk about the problem of air bubbles in the cross-section of the insulation layer of the plastic extruder.

Reasons for bubbles in the cross-section of the insulation layer of the plastic extruder:
1. The temperature control is too high (especially in the feeding section);
2. There is moisture in the plastic;
3. Long-term parking, the dissolved plastic is not cleaned and cleaned;
4. The geographical environment has high humidity;
5. There is ice or vapor content in the cable core is too high.
For the above reasons, the temperature of each section of the extruder screw should be effectively controlled; the commonly used raw materials should be pre-dried in advance; the operating requirements of the processing process should be strict, and the ability to evaluate the degree of plastic melting should be improved; pay attention to the production environment and raw material storage logistics standard etc.
TENGDA Machinery focuses on R&D and manufacturing of extruders, plastic extruders, plastic film blowing machines, internal mixers, small flat vulcanizing machines, laboratory granulators, etc. The products are widely used in rubber, plastics, chemicals, pigments, etc. field, welcome to consult.

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