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Applied Mathematics and Mechanics (English Edition) ›› 2014, Vol. 35 ›› Issue (3): 269-276.doi: https://doi.org/10.1007/s10483-014-1789-7

• 论文 •    下一篇

Flowing simulation of injection molded parts with micro-channel

崔志香1,2 司军辉1,2 刘春太2 申长雨2   

  1. 1. School of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350108, P.R. China;
    2. National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, P.R. China
  • 收稿日期:2013-01-22 修回日期:2013-07-15 出版日期:2014-03-26 发布日期:2014-02-18

Flowing simulation of injection molded parts with micro-channel

 CUI Zhi-Xiang1,2, SI Jun-Hui1,2, LIU Chun-Tai2, SHEN Chang-Yu2   

  1. 1. School of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350108, P.R. China;
    2. National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, P.R. China
  • Received:2013-01-22 Revised:2013-07-15 Online:2014-03-26 Published:2014-02-18

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705

被引次数

3

摘要： In the micro-molding of component with a micro-sized channel, the ability for polymer melt to flowing into the micro-channel in a macro-sized part is a big challenge. The multidimensional flow behaviors are included in the injection molding the macrocomponent with a micro-channel. In this case, a simplified model is used to analyze the flow behaviors of the macro-sized part within a micro-channel. The flow behaviors in the macro-cavity are estimated by using the finite element and finite difference methods. The influence of the injection rate, micro-channel size, heat transfer coefficient, and mold temperature on the flowing distance is investigated based on the non-isothermal analytic method. The results show that an increase in the radius of the micro-channel and mold temperature can improve effectively the flowing distance in the micro-channel.

关键词: micro-injection molding, flowing simulation, micro-channel, 区间分析方法, 敏感性, MARC二次开发, Duncan_Chang模型

Abstract: In the micro-molding of component with a micro-sized channel, the ability for polymer melt to flowing into the micro-channel in a macro-sized part is a big challenge. The multidimensional flow behaviors are included in the injection molding the macrocomponent with a micro-channel. In this case, a simplified model is used to analyze the flow behaviors of the macro-sized part within a micro-channel. The flow behaviors in the macro-cavity are estimated by using the finite element and finite difference methods. The influence of the injection rate, micro-channel size, heat transfer coefficient, and mold temperature on the flowing distance is investigated based on the non-isothermal analytic method. The results show that an increase in the radius of the micro-channel and mold temperature can improve effectively the flowing distance in the micro-channel.

Key words: micro-injection molding, flowing simulation, micro-channel, analysis method, sensitivity, secondary development of Marc, Duncan-Chang model

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