The automobile industry is the most widely used and used industrial category of engineering plastics in developed countries, and it is also one of the most promising fields of engineering plastics in China.

According to the development trend of my country's plastic products and the needs of product structure adjustment and the actual situation of my country's plastic machine industry, relevant parties suggest that the following five technologies should be focused on in the next period of time.

In the AGMA system, the geometric parameters of the base circle of the gear are used as the basic control parameters. Indirect gear parameters such as diameter pitch and pressure angle are used as working data, which are used as reference benchmarks in traditional analysis