Reasons for damage to the screw and barrelThe screw rotates in the barrel, and the friction between the material and the two causes the working surface of the screw and the barrel to gradually wear, the diameter of the screw gradually decreases, and the diameter of the inner hole of the barrel gradu

Calibrating sleeves are crucial components in the extrusion process of both PE (polyethylene) and PVC (polyvinyl chloride) pipes. However, there are some differences in the design and application of calibrating sleeves for each type of pipe:PE Pipe Calibrating Sleeve:Material: PE pipes have a smooth