1. Shot volume refers to the weight of the plastic melt injected into the mold cavity by the screw of the injection molding machine during injection. Different product weights require different shot volumes, and different machine tonnages require different shot volumes.

2. Injection speed refers to the speed at which the molten object is injected into the mold cavity. Different structures of plastic products require different injection speeds.

3. Injection pressure refers to the pressure at which the molten object is injected into the mold cavity. The injection pressure is related to the machine and the structure of the plastic product. Too much pressure will cause the product to have batch fronts, and too little pressure will cause the product to have glue shortages.

4. Holding pressure and holding time. In order to solidify the melt in the mold cavity, the screw will continue to give the cavity a certain amount of pressure for a certain period of time after completing the injection. This pressure is called holding pressure. This time is called holding time. Both the holding pressure and holding time should be determined according to the product structure.

5. Clamping force. During the injection and holding stages, a reaction force will be generated in the mold cavity, causing the mold parting surface to separate. Therefore, the clamping system of the molding machine must provide a certain clamping force to ensure that the mold parting surface does not separate.

6. Baking temperature and baking time. Many plastic materials need to be dried to remove moisture to ensure a good product appearance. The baking temperature and time for different materials are different.

7. Barrel temperature. Different plastic materials have different melting temperatures. The set temperature of plastic materials at different positions in the barrel is also different.

8. Mold temperature refers to the temperature of the mold cavity surface in contact with the product. Mold temperature affects the size, appearance, and molding time of the product.

Injection molding is a complex physical change process. The 8 elements shared above are more important.

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