Essential Techniques You Must Know for Precision Injection Molding

Currently, the injection mold production process is well-known. In plastic injection processing, especially in precision injection molding, there are several key considerations and process stages that DAYIN Plastic’s editor emphasizes:

1. Injection Product Molding Cycle
   The molding cycle of injection products includes both the injection time and cooling time. Effective control over these times significantly impacts product quality. Therefore, before starting production, it is essential to determine the product’s molding cycle through sample design and other preparatory methods.
2. Injection Mold Temperature
   Different plastic pellets have varying crystallization temperatures and rates, which affect the product’s appearance, deformation, dimensions, and mold requirements. Consequently, mold temperature control becomes especially crucial when using different plastics and meeting specific product requirements.

3. Injection Pressure of Molten Plastic
   During the filling of the mold cavity, the molten plastic encounters considerable resistance, so the level of injection pressure directly affects the product’s dimensions, weight, density, and appearance. Any issues with these factors can result in product rejection. Therefore, injection engineers must set the injection pressure based on a comprehensive analysis of the product’s requirements.
4. Injection Speed
   The speed of injection has a significant impact on the product’s surface quality. Injection speed is typically controlled by adjusting the oil supply rate to the injection cylinder per unit time.

DAYIN Plastics Products Co., Ltd. specializes in appliance mold manufacturing and provides OEM/ODM contract services, offering comprehensive manufacturing solutions that encompass both R&D and production. Our proprietary products include robotic vacuum cleaners, plastic tableware, and electronic dartboards. With 30 years of mold development experience, a team of over 50 R&D personnel, and more than 100 injection molding machines, DAYIN is committed to delivering high-quality manufacturing services and creating greater value for our clients.