Heat balanceMASTERplastic injection mold makers

Heat balance control injection mold injection molding machines and molds thermal conductivity is the key to producing injection molded parts . Internal mold, the heat generated by plastic ( such as thermoplastics ) caused by thermal radiation transfer to the material and MASTER custom injection moulding steel , through convective heat transfer fluid handed . Further , the heat is transferred to the heat radiation through the atmosphere and mold . Heat is absorbed by the mold temperature heat transfer fluid to take away . Thermal equilibrium of the mold can be described as : P = Pm-Ps. Where P is the mold temperature away heat ; Pm to heat plastic introduced ; Ps for the mold to distribute the heat of the atmosphere. The purpose of the control mold temperature and mold temperature on the effects of injection molded parts injection molding process , the primary purpose of controlling mold temperature First, the mold is heated to operating temperature , the second is to maintain a constant temperature in the die temperature . The success of these two do , you can optimize the cycle time , thereby ensuring the stability of high-quality injection molded parts . Mold temperature affects several aspects of surface quality, liquidity, shrinkage, molding cycle and deformation. Mold temperature is too high or lack of different materials will have different impacts . Thermoplastics , the mold temperature is usually a little higher will improve the surface quality and liquidity, but will extend the cooling time and MASTER plastic pallet mould cycles. Little lower mold temperature will reduce shrinkage in the mold , but will increase after stripping shrinkage of injection molded parts . And thermosetting plastics , the high point of the mold temperature will typically reduce the cycle time , and the time determined by the time required for cooling parts . In addition, plastic machining, mold temperature a little higher will reduce the plasticizing time, reduce cycle times .