Methods of improving service life of automobile die

As an indispensable and important process equipment for injection molding enterprises, the processing quality of automobile mold is not only related to the excellent performance of products, but also directly related to the production cost of enterprises. In order to further improve the use efficiency of automobile molds and reduce the cost of products. Next, we will explore the methods that can improve the service life from the main factors affecting the service life of automobile molds, namely, the quality of raw materials, the rationality of mold structure design, the applicability of mold material selection and mold use and maintenance.

1. The selection of raw materials, the temperature and pressure required for molding of different varieties are different, the working conditions are different, the service life of automobile molds is also different, and the plastic composition is different, which also has an impact on the wear of molds. Therefore, on the premise of meeting the service performance and product quality, plastic raw materials with good process performance should be selected to mold products, which is not only conducive to the molding of products, but also conducive to the improvement of the service life of automobile molds.

2. Mold structure design, cavity and core are the main molding parts of molded plastic parts. The strength and stiffness of cavity and core with different structural forms and the convenience of repair and replacement of vulnerable parts are different. Therefore, considering the service life of automobile die, the service life of automobile die can be prolonged by adopting the structural form with good strength and stiffness and easy repair. When designing the die structure, we should also pay attention to maintaining the heat balance of the automobile die. Through the reasonable design of the gating system, temperature regulation system and exhaust system, we can reduce the hot crack tendency of the die and improve the service life of the die.

3. Mold materials and heat treatment, injection mold cavity is generally complex, and the requirements for precision and surface roughness are relatively high. The selection of automobile mold materials will affect the quality and service life. The selection of mold materials should not only meet the requirements of customers for product quality, but also consider the cost of materials and the strength within the set cycle. The selection should meet the requirements of specific working conditions, such as wear resistance, strength and toughness, high temperature resistance, cold and hot fatigue resistance and corrosion resistance.

4. Mold use and maintenance, whether the use and maintenance of automobile mold are correct or not is also a major factor affecting the service life of the mold. Appropriate mold installation and commissioning methods, the parameters of the injection molding machine in production are consistent with the design requirements, and planned regular maintenance of the mold can improve the service life of automobile mold to a certain extent.