| 二维平板制件注塑充模流动计算机分析 |
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| 引用本文： | 王东燕,刘阳,屈小中,梁瑞凤.二维平板制件注塑充模流动计算机分析[J].塑料工业,1999,27(3):30-32,37. |
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| 作者姓名： | 王东燕 刘阳 屈小中 梁瑞凤 |
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| 作者单位： | 中科院化学所工程塑料国家工程研究中心工程塑料国家重点实验室,北京,100080 |
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| 摘 要： | 用Ｃ－Ｍｏｌｄ软件对二维平板制件（海尔洗碗机盖）注塑充模过程进行计算机流动模拟分析，应用动态应力流变仪测试所用材料ＰＰ１３００和ＨＩＰＳ４９２动态流变性能，由Ｃｏｘ－Ｍｅｒｚ规则得到宽剪切速率范围的粘度，用改进Ｃｒｏｓ模型拟合得到ｎ、Ｂ、τ、β、Ｔｂ等参数。研究了注射温度、注射时间、浇口位置、材料性质对充模过程的影响；利用优化螺杆速率分布考察了浇口位置、注射温度、注射时间、保压压力等对锁模力、熔体入口压力的影响，结果表明，对ＰＰ１３００而言较佳工艺为注射时间４ｓ，注射温度２３０℃，保压时间２５～３０ｓ，最大注射压力４０ＭＰａ，并将原浇口向左偏离３０ｍｍ。
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| 关 键 词： | 流动分析 注塑成型 计算机分析 二维平板 模具 |
Injection Molding Simulation of Two-dimension Plate Part |
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| Wang Dongyan,Liu Yang,Qu Xiaozhong,Liang Ruifeng.Injection Molding Simulation of Two-dimension Plate Part[J].China Plastics Industry,1999,27(3):30-32,37. |
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| Authors: | Wang Dongyan Liu Yang Qu Xiaozhong Liang Ruifeng |
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| Abstract: | This paper
reports the simulation results of injection molding of twodimension plate part(cover of
Haier bowl washing machine) by Cmold software.The dynamic rheological properties of
PP 1300 and HIPS 492 were tested by using Dynamic Rheometer (DSR) 200.According to
CoxMerz rule,we got five parameters n,B,,,Tb,which could be used in the afterwards flow
analysis,of moldified Cross Model and the viscosity in wide shear rate range.The effects
of melt temperature,melt injection time,gate location and rheological properties of
materials on the filling process were examined.The effects of gate location,melt injection
temperature and time,and melt holdpressure on clamp force and melt inlet pressure
were examined by optimizing ram speed.And finally,the optimum filling results for PP
1300 were obtained:injection time 4s,injection temperature 230,holdpressure time
2530s,maximum injection pressure 40 MPa,and the gate location was 30mm moved to
the left. |
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| Keywords: | Cmold Injection Molding Flow Analysis |
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