Precautions in Injection Molding Processing

1. The raw materials need to be fully dried according to the process requirements without moisture, otherwise there will be silver streaks on the surface after injection

2. The temperature, pressure, time, etc. of the injection molding process meet the requirements of the process parameter card, and the injection speed should be strictly controlled.

3. During the injection molding process, mold release agents, especially mold release agents containing silicone oils, cannot be used, otherwise it will affect the adhesion of the coating.

4. Dimension control: The length, assembly foot or assembly hole should meet the requirements of the drawings and measuring tools.

5. Internal stress control: The product is not allowed to have large internal stress, and internal stress testing should be carried out after injection molding.

6. After the intermediate stop, the material should be cleaned to avoid the brittleness of the injection product due to the degradation of the raw material in the screw due to the long residence time.

7. In the process of injection molding, operators need to wear clean cotton gloves to avoid contamination of the product surface after injection molding.

8. The surface of the injection molded parts must not be polished or polished, so as not to affect the adhesion of the coating to the substrate.