Why is the plastic extruder the best-selling device in plastic machinery?

Why is the plastic extruder the best-selling device in plastic machinery?

The high-speed and high-yield extruder has the advantages of high efficiency and high output, which enables investors to obtain larger output and high return with relatively low investment. However, the high-speed and high-yield screw extruder has also brought some problems. For example, the decrease of residence time of the material in the screw will result in uneven mixing of the material. Excessive shearing of the material may cause sudden temperature rise and thermal decomposition of the material. The difficulty in controlling the extrusion stability will cause the geometrical size of the extrudate to fluctuate. The accuracy of the auxiliary device and the control system must be improved. The wear of the screw and the barrel is intensified. It is necessary to use a high wear-resistance and ultra-high wear-resistant material. The problems of how to improve the life of the reducer and the bearing at high speeds need to be solved.

The high efficiency of the highly efficient and multifunctional plastic extruder is mainly reflected in high output. In terms of low energy consumption and low manufacturing cost, its use has been broadened into food, feed, electrode, building materials, packaging, pulp, ceramics and other fields. In addition, the "one-step extrusion process" in which the kneading granulation and the extrusion molding process are combined into one is also worthy of attention.

Large-scale and precision realization of extrusion molding equipment can reduce production costs, which is more prominent in large-scale twin-screw granulation units, blown film units, and pipe extrusion units.