1. Injection temperature

Injection temperature refers to the temperature at which the mold and plastic are heated. It directly affects the size and appearance of the product. If the temperature is too high, it will cause deformation of the product, while if it is too low, it will cause defects such as short filling and burrs. During the processing of injection molds, the injection temperature needs to be adjusted according to different plastic materials.

2. Injection pressure

Injection pressure refers to the pressure exerted by an injection molding machine to inject plastic into the interior of the mold. It has a significant impact on the filling, compactness, warpage, shrinkage, and surface smoothness of formed parts. If the injection pressure is too low, defects such as shrinkage and underfilling are prone to occur; If the injection pressure is too high, it may cause mold damage or contact sensor control failure.

3. Injection speed

The injection speed is also a key parameter, which refers to the instantaneous use of a loading machine to push plastic into the mold cavity and apply the required pressure. If the injection molding speed is too fast or too slow, it will have a negative impact on the molding quality. If it is too fast, it can easily lead to problems such as short filling and burrs; If it is too slow, it may cause defects such as bubbles or flow marks in the product.

4. Holding time

Holding time refers to the time required to maintain a certain pressure after injection to fully fill the mold cavity with plastic. Too short holding time can lead to incomplete filling of the mold cavity with plastic, leaving gaps and defects; Excessive holding time may also lead to deformation and irregular surfaces, affecting the quality of the finished product.

5. Cooling time

Cooling time refers to the time required for the internal temperature of the mold to reach around 50% of the temperature inside the barrel. Insufficient cooling time may lead to unstable size and insufficient strength of the formed product, while excessive cooling can increase costs and manufacturing cycles. In addition, it may also lead to inaccurate size and deformation of the formed product.