The traditional mold heating is used in a fixed mold forming,  the preheating temperature is to level off the temperature of the processing in order to achieve good quality.   Heating the innovation mold before the products are injected so that the mold can rapidly rised up above the polymer glass transition Tg and cool down quickly below the mold temperature Tg. Shorten the cooling time and accelerate curing and reached [dynamic mold temperature control].