Factors Affecting Vertical Injection Molding Machine Molding?

During the molding process of the vertical injection molding machine, there will be many factors that make the produced products defective, such as temperature, injection time and so on. can directly affect the molded product. The following is a detailed introduction to the editor.

1. Temperature

The temperature mentioned here only refers to the temperature of the mold and the heating temperature of the raw materials. The temperature of the mold is an indispensable part of injection molding. The lower the mold temperature, the faster the heat dissipation due to heat conduction, and the temperature of the melt. The lower it is, the less liquid it is. Therefore, it is very important to accurately grasp the temperature of the mold for injection molding. The second is the heating temperature of the raw material. Some materials need to be heated in the raw material tank because of their particularity, such as BMC materials.

2. Time control of injection molding

Injection time has three main effects on the quality of injection molded products.

1. If the injection time is too long, it is easy to cause the product to pass the optimal molding temperature, resulting in poor final molding.

2. The injection molding time is too short to completely fill the mold, which affects the quality of the product.

3. Shorten the injection time, the shear strain rate in the melt is increased, the shear heating is greater, and the heat lost due to heat conduction is less, so the temperature of the melt is high, the viscosity is low, and the injection pressure required to fill the cavity also lower. The above is a summary of the factors that affect the quality of the product when the vertical injection molding machine is formed. Everyone has testing and debugging during the injection molding production and processing, so we can achieve the best level through multiple debugging.