注塑零件在不同流道下冷却温度场的分析研究

Research on Cooling Temperature Field of Injection Parts under Different Flow Channels

为了确定出不同类型冷却流道对于注塑零件温度场影响,针对特定注塑零件设计出模具结构,之后采用有限元软件对不同流道模型进行温度场仿真计算,比较不同流道对冷却温度场的影响。研究结果表明,注塑模具采用弯曲流道设计能冷却流道下凝固温度场状态,通过设计出三种不同类型的流道,并通过仿真软件进行迅速带走热量,还能增大与固体域边界的接触面,进而加快注塑零件冷却,避免了因温度过高对零件结构造成损坏。

In order to determine the influence of different types of cooling runners on the temperature field of injection molded parts,the mold structure is designed for specific injection molded parts. Then the finite element software was used to simulate the temperature field of different flow path models to compare the effects of different flow channels on the cooling temperature field. The results show that the curved runner design can not only take away heat quickly but also increase the contact surface with solid domain boundary. That will accelerate the cooling velocity of injection parts,which could avoid the damage of parts structure caused by high temperature.