| 塑料注射成型保压过程的数值模拟 |
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| 引用本文： | 刘春太,陈静波,董斌斌,申长雨.塑料注射成型保压过程的数值模拟[J].应用力学学报,2002,19(4):89-92. |
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| 作者姓名： | 刘春太 陈静波 董斌斌 申长雨 |
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| 作者单位： | 郑州大学,郑州,450002 |
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| 基金项目： | 国家“十五”重点科技攻关项目 (2 0 0 1BA2 0 3B16 0 2 )，河南省自然科学基金项目 (0 0 40 60 3 0 0 ) |
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| 摘 要： | 保压过程是塑料注射成开型一个重要阶段，它直接关系到最终制件的内部结构、尺寸稳定性和变形等，本文在对塑料注射成型保压过程进行深入分析的基础上，基于合理的假设和选用恰当的材料模型，导出了保压过程可压缩、非牛顿粘性流体在模具型腔中非等温流动的控制方程，采用有限元/有限差分混合法实现了对保压过程的模拟，并通过算例讨论了保压压力、浇口凝固时间、锁模力等工程关心的实际问题。
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| 关 键 词： | 注塑成型 保压过程 数值模拟 |
| 文章编号： | 1000-4939(2002)04-0089-03 |
| 修稿时间： | 2001年3月12日 |
Numerical Analysis of Packing Stage in Plastics Injection Molding |
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| Liu Chuntai,Chen Jingbo,Dong Binbin,Shen Changyu.Numerical Analysis of Packing Stage in Plastics Injection Molding[J].Chinese Journal of Applied Mechanics,2002,19(4):89-92. |
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| Authors: | Liu Chuntai Chen Jingbo Dong Binbin Shen Changyu |
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| Abstract: | Packing is an important stage in plastics injection molding. It may influence quality, internal structure and dimension precision of the final parts. Based on rational assumptions, appropriate material model and engineering analysis , the equations for governing the packing process are obtained using the basic equations of Non Newton, compressible, viscous fluid. A hybrid finite element/finite difference method was used to model this processing, and a practical example are used to illustrate how to resolve some engineering problems, such as packing pressure, gate frozen time and clamp force. |
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| Keywords: | Injection molding packing stage numerical simulation |
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