Two-color molds are common items in daily life, daily necessities, digital electronic products, instrumentation, household appliances, etc. Too much need to use two-color molds, and a two-color mold is a complex process from design to use Completed, in the process of plastic mold injection molding, you will encounter many problems, such as burrs, shrink marks, filling, temperature, etc. These problems affect the quality of this mold, and sometimes increase our production costs. Share the mold today The necessity of injection molding temperature control.
1. Temperature control to prevent stress
This is a problem with the material of the molded product. This item requires a cooling rate. The cooling time is short, even if one part is hardened and some is still soft, it can still avoid stress caused by uneven shrinkage. That is, proper temperature control can improve the cooling stress properties.
2. The purpose and effect of temperature control on formability
The appearance of the molded product, the physical properties of the material, the molding cycle, etc. are quite significant due to the temperature of the mold core. In general molding conditions, the mold core temperature is kept low, which is ideal to increase the number of injections, but the molding cycle related to the shape of the molded product (mold structure) and the type of finished material also depends on the temperature necessary to increase the mold core filling.
3. Adjust the crystallization degree of molding material for temperature control
Crystalline materials such as polysulfide (nylon), polyacetate, polypropylene, etc. are required to adjust the degree of crystallization and improve the mechanical properties. Generally, a higher mold temperature is required.