Some tips for strength improvement of molded parts
Injection molding is a process that forms the molten plastic into a specific product, which is suitable for large-scale production, and small-batch testing. Reasonable design and material selection can meet the requirements of the product in use. So, are there any tips for improving the strength？
Material selection
Choose appropriate plastic material according to the environment in which the product is used. In addition to the structural design, the raw material of the product is a factor that directly affects the strength of the product. Appropriate material can improve the strength and prolong the service life of the plastic parts.
Wall thickness
The main defect of products with large wall thicknesses is the shrinkage of the product. Because of the ununiform wall thickness, the cooling time of each section of the product is different, and the thick section of the product needs a long time to cool, which will affect the cycle time and the production cost.
Ribs structure
The strength can be improved by adding reinforcing ribs in the inner area of the product. It should be noted that the reinforced ribs should have a uniform wall thickness as the product to avoid shrinkage issues. With excellent design, and suitable holding time of the machine, you will get the product as your target.
Fillets design
The sharp corner in product design has always been a problem in molding. A sharp corner design requires a high pressure of the molding machine to fill, and some small corners cannot be full even if there is a high-pressure setting. In this case, the function of the fillets should be recommended. Through the excessive fillet design, injection molding is easier to achieve.
For many products with strength demands, their service life is longer as well. Suitable material selection and structural modification ensure the high standard production of the molded parts. Shanghai Future Mould is a professional supplier engaged in mold design and manufacture and can provide customers with excellent product redesign and modification services.
