1. Advantages of Extruder Rubber Screw Barrel
The material of the extruder screw must have high mechanical strength, can withstand huge torque, and not deform under high temperature and high pressure.
The reason is that the screw element of the extruder rotates in the barrel under high temperature, high pressure and high torque. Because it must force the material to move forward during the rotation process, and also bear the strong friction and corrosion of the erosion of the plastic decomposition gas, the extruder screw must have advantages in these properties.
2. Common problems of Bimetallic Screw Barrel extruder
During the rotation of the extruder screw, it is mainly used to shear and plasticize the plastic and push the plastic forward, and it will withstand huge shear stress and friction. Due to long-term work under severe conditions, the wear of the screw edge becomes smaller and the gap between the screw and the barrel increases, which will lead to a decrease in the amount of plastic extrusion. In severe cases, plastic reflow will occur, the plasticizing effect will be reduced, and crystal grains will appear. Finally, the decline in production capacity is serious.