1. Every kind of plastic products. they Screw pump There is an optimal molding temperature scale. The processing temperature of the cylinder should be controlled to reach this temperature scale. Granular plastic flows into the charging cylinder from the funnel. The first is the feeding part, where there must be drying conflict, because the heat of these plastics is not good and the melting is uneven. Simply wear the inner wall of the barrel and the surface of the screw. Similarly, in the tightening stage and the homogenization stage, if the plastic melt condition is uneven, it will also lead to accelerated wear of materials.

2、 IMO screw pump The speed shall be adjusted properly. Because some plastics are added with reinforcements such as glass fiber, minerals or other fillers. Compared with melted plastics, these materials have more conflicts with the metal village. During injection molding. If high speed is selected, plastic shear force can be added. It will also cause more fibers to be torn. The tip of the fiber is sharp, which will greatly increase the friction force. Inorganic minerals also play a very important role in scratching the surface of high-speed moving metal. Therefore, do not set the speed too high.

3. The screw pump rotates the frog rod in the drum, which makes the data conflict with the two. Gradually polish the working surface of the fishing rod and the barrel: the diameter of the bat rod gradually decreases, and the inner diameter of the barrel also increases. Thus, the cooperation gap between the spiral tube and the roller. Their speed is getting faster and faster. However, because the resistance of the front end of the barrel and the splitter plate is unchanged, the leakage velocity of the extrusion material when it is pushed forward increases, that is, the flow of the material from the diameter gap to the feeding direction increases. As a result, the output value of plastic machinery declined. This phenomenon leads to the extension of the time when materials stay in the cylinder, thus leading to the differentiation of data. If polyethylene is selected, the hydrogen generated after differentiation will enhance the corrosion of frog rod and cylinder.

4. If calcium carbonate, glass fiber and other fillers are added to the material, the wear of screw and barrel can be accelerated.

5. The rotating torque of the screw pump suddenly increases because the material is not shaped or metal impurities are mixed in the material. The torque exceeded the strength limit of the screw, causing the tension rod to crack.