The necessity of two-shot injection temperature control

The necessity of two-shot injection temperature control:

1. The purpose and effect of temperature control on formability
The appearance of the molded product, the physical properties of the material, and the molding cycle are significantly affected by the mold core temperature. In general molding conditions, the mold core temperature is kept low to increase the number of shots. However, the molding cycle related to the shape of the molded product (mold core structure) and the type of finished material also depends on the temperature at which the mold core fills must be increased.

2. Temperature control to prevent stress
This is a material problem of the molded product, and this requires a cooling rate. The cooling time is short, even if one part is hardened and the other part is still soft, the stress caused by uneven shrinkage can still be avoided. That is, proper temperature control can improve the properties of cooling stress.

3. Adjust the crystallization degree of the forming material for temperature control
Crystalline materials such as polysulfuramide (nylon), polyacetate, polypropylene, etc., generally require a higher mold core temperature to adjust the degree of crystallization and improve the mechanical properties.
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