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Numerical Simulation of Driven and Pressure Flow in Compound Shaped Part of Co-extrusion Process of Polymer with Metal Insert

机译:聚合物与金属嵌件共挤过程复合成型部分驱动压力流的数值模拟

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摘要

The mathematic model for polymer extrusion has been established by using the penalty finite element method, and the analysis program has been coded. The driven and pressure flow of power-law fluid in compound shaped part of co-extrusion process of polymer with metal insert has been simulated. The velocity field and temperature field of polymer flow in die cavity are obtained though solving the momentum equation and energy equation, and the influence of various metal insert velocity on the polymer flow is studied. The potential defect is forecast, and the improved measure has been given further. It shows that the common rule of the compound shaped part of co-extrusion process of polymer with metal insert is given by the analysis of the example. The simulation results are very important for the process and die design of the polymer co-extrusion with metal insert.
机译:利用惩罚有限元法建立了聚合物挤出的数学模型,并对分析程序进行了编码。模拟了幂律流体在聚合物与金属嵌件共挤出过程的复合成型部分中的驱动力和压力流。通过求解动量方程和能量方程,得到模腔内聚合物流动的速度场和温度场,研究了各种金属嵌件速度对聚合物流动的影响。对潜在的缺陷进行了预测,并提出了改进措施。通过实例分析表明,聚合物与金属嵌件共挤出过程的复合成型部分的共同规律。仿真结果对于聚合物与金属嵌件共挤出的工艺和模具设计非常重要。

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