What are the mold design skills for electroplating products?
At present, electroplating products have the advantages of low cost, lightweight and simple design, and have gradually replaced metal products in many industries. Also, there are many defects in the electroplating process of plastic parts that caused by many reasons. We should ensure that the plastic products are flawless for electroplating processing.
1. The plating nozzle needs to be set in the mold design.
2. By the principle of thermal expansion and contraction, we should set a shrinkage rate of about one-thousandth for electroplating products.
3. The feet point of the products should be slightly large. The purpose is to prevent the crack of the product in the electroplating process.
4. Pay attention to the draft angle.
5. Set vent holes to prevent defects such as gas mark.
6. When designing the mold, it is necessary to consider the issue of the clamping line.
7. Reduce the impact of the ejector pin on the product's appearance.
8. The outer surface of plastic products should be smooth and can apply the embossed patterns on it, to improve the coating adhesion during the electroplating process.
9. Plastic products should have high strength, and the wall thickness of the products should be within 1.9-3mm.
Many factors affect the quality of electroplating products. The mentioned skills are to improve the product quality of the molded parts and ensure a higher yield. For different types of products with different structures, mold designers need to adjust the mold structure to make the products qualified for the electroplating process and ensure the plastic products reach the ideal condition.
