The basic concept of plastics and the performance characteristics of commonly used engineering plastics.

Traditionally, the two main factors for measuring gear transmission performance are load capacity and fatigue life, and transmission noise and transmission accuracy are often ignored. With the promulgation of ISO14000 and ISO18000, the importance of controlling gear transmission noise has become increasingly apparent, and industrial development and demand have increasingly stringent requirements for transmission errors of high-precision equipment (gear transmission backlash). The currently known factors that cause gear noise can be roughly analyzed from several aspects, including design, manufacturing, installation, use and maintenance.

Single screw extruders have played a pivotal role in revolutionizing the plastic industry. Their efficiency, versatility, and environmental benefits make them indispensable tools in plastic manufacturing.

The extrusion machines in the domestic plastic industry are roughly divided into two categories: single screw extruder and twin screw extruder. Because these two types of equipment have their own characteristics, they are widely used in the plastic industry.