In the daily production of extruders, various quality problems are often encountered. The following is a list of three points for us, the common plasticizing problems and solutions in the production of extruders: The surface is powdery, dull and granular. Causes: The temperature of the body is not enough; the temperature of the nose is too low; the speed of the screw machine is too fast. Treatment method: Appropriately increase the temperature of the extruder body; appropriately increase the temperature of the machine head; slow down the speed of the extruder. Matte surface. Causes: The temperature of the machine is too low; the wire diameter is too small; the mold sleeve is too large. Treatment method: Properly increase the temperature of the machine head; measure the outer diameter, and select the corresponding mold sleeve according to the wire diameter. There are bubbles on the surface. Causes: The extruder product has water and oil; the plastic is wet; the temperature is too high. Treatment method: clean up water and oil stains for reproduction, use a preheater to heat; dry the plastic; appropriately lower the temperature of the extruder.