1. If the temperature of the heater is too high, it should be appropriately reduced;
2. If the heating speed is too fast, it should be appropriately or slowed down;
3. If the sheet material is too close to the heater, the distance between the two should be appropriately increased;
4. If the heating time of the sheet is too long, the heating time should be appropriately shortened;
5. The raw material for processing sheet materials has a high melt index, low melt strength, and excessive sagging after heating during sheet hot forming. Therefore, resin processing sheet materials with a lower melt index should be replaced;
6. If the orientation of the sheet is too small and the sheet sags excessively after being heated, a sheet with higher orientation should be replaced. It is best to control the heating temperature within the minimum forming temperature range of the sheet;
7. If the stretching ratio in the forming area is too large, a plunger should be used for pressure assistance, or the movement speed of the plunger or mold should be appropriately increased;
8. The design of the mold structure is unreasonable, and the mold structure design should be modified: firstly, replacing the male mold with the female mold; Secondly, try to increase the sharp corners and fillet radius of the product as much as possible; The third is to redesign the mining house and assist in pressure and blockage.