The traditional method is to warm the mold with the mold temperature machine, but the disadvantages of this method are as follows:
It can not meet the need of rapid heating and rapid cooling in high-gloss injection molding;
If the temperature rise is small, the welding mark on the surface of the product can only be reduced and cannot be eliminated.
The higher the hardness of the plastic, the worse the mobility.Therefore, the hardness of the surface of this process can only reach the HB level and can not meet the actual use requirements;
When the mold is heated up, it will expand and shrink while cooling, making the clamping force very unstable.It is easy to cause products to be dissatisfied, charred, internal stress and other defects.