聚合物连注连轧成型温度场仿真分析
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摘要
为研究成型工艺参数对聚合物连注连轧成型温度场的影响,应用Fluent软件对连注连轧温度场进行仿真分析。仿真分析结果表明,随着注射压力升高、轧辊转速的增加、注射温度的升高、轧辊冷却温度的升高,高弹态转变点(线)、玻璃态转变点(线)均向出口附近移动,而注轧区中心温度及其表面温度沿出口方向梯度增大;得到了最佳成型工艺参数组合,可以为连注连轧成型实验工艺参数的设置提供参考。
In order to study the influence of forming parameters on the temperature field of Continuous Injection Direct Rolling(CIDR) process,we used Fluent software to simulate the temperature field of CIDR.Simulation analysis results show that:both high elastic state temperature transition point(line) and glass transition temperature point(line) move toward the exit,and the gradient of central temperature is increased with the injection pressure,roller speed increase,injection temperature and roller temperature increase;optimum forming conditions are obtained,which are good guides to the CIDR process experiments.
In order to study the influence of forming parameters on the temperature field of Continuous Injection Direct Rolling(CIDR) process,we used Fluent software to simulate the temperature field of CIDR.Simulation analysis results show that:both high elastic state temperature transition point(line) and glass transition temperature point(line) move toward the exit,and the gradient of central temperature is increased with the injection pressure,roller speed increase,injection temperature and roller temperature increase;optimum forming conditions are obtained,which are good guides to the CIDR process experiments.
引文
[1]Wang Haixiong,Lv Yonghu,Li Jibin,Wang Changsheng and Zhang Zhihui.Continuous injection direct rolling in microstructure fabrication for polymer optical elements[J].International Journal of Advanced Manufacturing Technology.2016,85(9):2247-2255.
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[4]陈燕春,何文瀚,区仲荣.注射压缩成型技术在塑料光学透镜生产中的应用[J].制造技术与机床,2010,2010(2):159-161.
[5]贺永,傅建中,陈子辰.微热压成型过程聚合物流动特性研究[J].浙江大学学报,2008,42(5):858~862.
[6]C Liu,J M Li,J S Liu,L D Wang.Deformation behavior of solid polymer during hotembossing process[J].Microelectronic Engineering 2010,l8(7):200-207.
[7]王海雄,吕永虎,李积彬.PMMA熔体黏度影响因素实验研究[J].中国塑料,2016,30(2):75-78.
[8]汪志永,黄汉雄,汪斌.水辅助注塑中高压水穿透过程的数值模拟[J],化工学报,2013,64(4):1170-1175.
[9]C A Hieber.Modeling/Simulating the Injection Molding of Isotactic Polypropylene[J].Polymer Engineer and Science,2002,42(7):1387-1409.
[2]Wang Haixiong,Li Jibin,Lv Yonghu and Linbao Kong.Key technology of continuous injection direct rolling for optical PMMA plate[J].Advances in Mechanical Engineering,2014,971756,1-9.
[3]关伟盛,黄汉雄,汪斌.微注射压缩成型超疏水表面的微结构设计和调控[J].高分子学报,2013,(10):1285-1289.
[4]陈燕春,何文瀚,区仲荣.注射压缩成型技术在塑料光学透镜生产中的应用[J].制造技术与机床,2010,2010(2):159-161.
[5]贺永,傅建中,陈子辰.微热压成型过程聚合物流动特性研究[J].浙江大学学报,2008,42(5):858~862.
[6]C Liu,J M Li,J S Liu,L D Wang.Deformation behavior of solid polymer during hotembossing process[J].Microelectronic Engineering 2010,l8(7):200-207.
[7]王海雄,吕永虎,李积彬.PMMA熔体黏度影响因素实验研究[J].中国塑料,2016,30(2):75-78.
[8]汪志永,黄汉雄,汪斌.水辅助注塑中高压水穿透过程的数值模拟[J],化工学报,2013,64(4):1170-1175.
[9]C A Hieber.Modeling/Simulating the Injection Molding of Isotactic Polypropylene[J].Polymer Engineer and Science,2002,42(7):1387-1409.