The requirements of the automobile are very high, so the manufacture of its parts is also very tedious, so the requirements for the design and manufacture of the automobile shell die are extremely high. 

Cars with different shells have different configurations, and the same car system is also different according to the configuration of high and low. 

Today, the editor is going to talk about the injection molding of the middle shell of the car. 

The main contents are as follows: 1. The appearance of the middle shell of the automobile is not allowed to have spots, shrinkage sags, weld lines, flying edges and other defects. 

2. The plastic parts are internal functional parts, and the assembly requirements of automobile middle shell are high. 

3. The shape of the middle shell of the car is complex. 

4. According to the characteristics of the middle shell of the car, it is necessary to prevent the die from sticking.