How to avoid the blockage phenomenon of Screw Barrel during the extrusion process?

To avoid blockage during the extrusion process of Screw Barrel, we need to conduct in-depth analysis and meticulous operations from multiple dimensions. Firstly, understanding the characteristics of materials is the foundation for avoiding blockages. Different materials, such as plastic, rubber, or composite materials, have significant differences in their melting temperature, viscosity, flowability, and thermal stability. These characteristics directly determine the behavior of the material in the Screw Barrel, such as melting rate, flow uniformity, etc. Therefore, selecting materials with good fluidity, moderate melting temperature, and high thermal stability is crucial for preventing blockages.

The control of operating conditions is also a key link in preventing blockages. The control of parameters such as temperature, pressure, and speed is crucial in the extrusion process. The selection of temperature should be based on the melting temperature of the material, ensuring that the material is fully melted while avoiding thermal decomposition or burning caused by excessive temperature. Pressure control is equally important, as excessive pressure can cause excessive compression of materials in the Screw Barrel, increasing the risk of blockage. Therefore, we need to set the extrusion speed reasonably based on the fluidity and extrusion requirements of the material, to ensure that the material can flow out evenly and stably.

In addition to the above measures, regular maintenance is equally important for avoiding blockages. We need to regularly clean and inspect the Screw Barrel to ensure that there are no residues or impurities in the screw and groove. These residues or impurities may block the flow channels of the material, causing the extrusion process to be hindered. At the same time, we also need to pay attention to the wear and tear of the equipment, and replace severely worn screws or sleeves in a timely manner to ensure the normal operation of the equipment.