Injection mould is to use what material made of?

We all know that the structure of injection mold is a complex process, some plastic is sensitive to stress, easy to produce internal stress and qualitative fragile easy to crack when molding, plastic pieces under the action of external force or under the effect of solvent or cracking phenomenon. Therefore, besides raw material in manufacturing plastic injection mould in adding additives improve the crack resistance, dry, should pay attention to in the raw material processing conditions, the reasonable choice to reduce internal stress and increase the crack resistance. And should choose the reasonable injection mold plastic parts shape, unfavorable setting insert and other measures to try to reduce stress concentration. The structure of the injection mould by the type of injection molding machine and plastic pieces of the structure characteristics of the decision, each pair of mould are composed of moving die and die. Dynamic model is installed in the movement of the injection molding machine, and modules are installed on the fixed plate of injection molding machine; When we do the injection, dynamic model and decide the closed die casting system and the cavity, when the mold separately, plastics or beer in dynamic model, by setting in motion a mould again the demoulding mechanism of the plastic parts. Injection mould is to use molten material filling cavity, cooling mould and products. Injection molds appropriate USES polystyrene monomer polymerization and polymer. It has the good transparency, heat resistance, resistance to light and good electrical insulating properties, good processing flow, is the ideal raw material injection mould design and production. Polystyrene good liquidity, easy molding, polystyrene melt viscosity on the shear rate and temperature is more sensitive, in injection, increasing the injection pressure rise or barrel temperature can make the melt viscosity drop, all can achieve the goal of improving polystyrene melt fluidity. Comprehensive requirements of injection mold is: to produce the dimensional precision, appearance, physical properties and so on various aspects all meets the requirement of the public sector of the products. Angle of injection mould used for high efficiency and automation is easy to operate; From the perspective of injection mold manufacturing, reasonable structure, easy manufacturing, low cost.
injection mould affects the quality of the products. First of all, injection mold cavity shape, size, surface roughness, parting surface, into the gate and exhaust slot location and demoulding ways, etc on the dimensional accuracy and shape accuracy of the product and parts of physical properties, mechanical properties, electric properties, and the size of the internal stress and isotropic, appearance quality, surface finish, bubble, dent, burning, silver lines and so on all have very important influence. Second, in the process of machining, injection mould structure had a great influence on operation is difficult to degree.