基于ANSYS的注塑模三维温度场数值模拟  

3D Temperature Field Numerical Simulation for Injection Mold Based on ANSYS

作　　者：路书芬[1,2] 王利霞[1] 张勤星[1] 李立明[2] 申长雨[1,3] 

机构地区：[1]郑州大学橡塑模具国家工程研究中心,河南郑州450002 [2]郑州电力高等专科学校机电工程系,河南郑州450004 [3]大连理工大学,辽宁大连116024

出　　处：《塑料科技》2014年第1期101-105,共5页Plastics Science and Technology

基　　金：2010年河南省重大公益项目(101100910600);国家重点基础研究发展计划(2012CB626809)

摘　　要：建立了注塑模具和塑件三维瞬态传热分析的数学模型并确定了边界条件和初始条件,基于ANSYS平台二次开发实现了模具和塑件温度场的耦合分析。模拟了不同冷却方式、初始模具温度和初始熔体温度下的冷却过程,分析了这3种因素对塑件温度场和塑件温度-时间曲线的影响。结果表明:同熔体温度相比,模具温度对冷却过程的影响更大;塑件温差随模具温度、熔体温度的升高而增大,其中熔体温度的影响较大;通入冷却水后,塑件温度降低速率加快、塑件温差减小,且在较高模具温度下这种效果更为明显。The mathematical model of the coupling analysis of 3D transient heat transfer of mold and plastic part was established, and the initial conditions and boundary conditions were determined. The coupling analysis of the temperature field of mold and plastic part was implemented based on the secondary development of ANSYS. The cooling stages were simulated under different cooling modes, initial mold temperatures and initial melt temperatures, and the influence of these factors on temperature field and temperature-time profiles of the plastic part were analyzed. The results show that the effect of mold temperature in the cooling process is more significant than that of melt temperature; temperature difference of the plastic part increases with the increasing of mold temperature and melt temperature, and the effect of melt temperature is more pronounced; temperature of the plastic part decreases faster with water cooling and temperature difference of the part also decreases, moreover, the effect is more obvious at higher mold temperature.

关 键 词：注塑成型 ANSYS 温度场 数值模拟 工艺参数 

分 类 号：TQ320.62[化学工程—合成树脂塑料工业] TP391.7[自动化与计算机技术—计算机应用技术]