The two-color injection molding machine has a short cooling time, and even if a part of the hardening is still soft, the stress caused by the uneven shrinkage can be avoided. That is, proper temperature control can improve the cooling stress properties.
The appearance of the processed product, physical properties of the material, forming cycle, etc., are significantly affected by the temperature of the mold core. In general molding, the temperature of the mold core is kept low, and the number of shots can be increased. However, the forming cycle related to the shape of the molded article (the structure of the mold core) and the type of the finished product also depends on the temperature at which the mold filling is necessary.