Through injection molding, it can be used for continuous and rapid mass production of various shapes including complex shapes. Therefore, it is widely used in various fields represented by daily necessities.

In the injection molding technology, the first step is to add the pellet resin to the hopper as the material input port. The material pellets will be heated into liquid state in the cylinder block to complete the preparation process for injection. Then, the material ejected from the nozzle of the injection part will pass through the pipe named injection port inside the mold, and then flow through the further branch flow channel to be injected into the molding part. After the material cools and solidifies, open the mold and discharge the formed products to the outside. In the final refining process, the injection port and flow channel will be cut, and the molding part will be processed.

In the actual production, a single injection molding often produces multiple molding products at the same time, so how to ensure that the melt material flows to all parts evenly is very important. Therefore, we must work hard in the mold shape design, such as the runner length is designed to be the same length.

Although injection molding is a processing technology suitable for mass production, in order to truly produce high-precision molding products, we must start from the selection of resin materials, and comprehensively grasp the processing accuracy of the mold, the temperature and speed of the injection material and other conditions.

In recent years, with the development of injection molding machine based on controller control, the high-speed injection machine is becoming more and more popular. On the other hand, there are many special models specially used for the processing of LCD light guide plate.