摘要
研究了模具随形冷却结构对制品成型的热响应变化,利用有限元软件Ansys对线性与随形2种冷却结构进行瞬态热响应分析与对比,得到了2种结构模式的冷却效率和型腔温度场分布规律,并借助Moldflow和计算流体动力学(CFD)软件对注塑制品在随形冷却结构模式下成型所得到的温度场分布及其可能产生的缺陷进行了分析研究。结果表明,随形冷却结构较传统水道具有更均匀的冷却效果,冷却时间缩短了50%,体积收缩率降低了15%,且能更迅速地调控模具温度,更快地进入稳定的工作状态。
The thermal response of the conformal cooling structure of a mold was studied.The traditional mold cooling structure was linear,the cooling effect was not good.We designed a new cooling structure named conformal cooling.The transient thermal responses of the two structures were compared via the analysis of ANSYS program,the cooling efficiency and cavity temperature field distribution of the two schemes were obtained based on Moldflow and CFD software,and the potential flaw was examined.It turned out that the cooling effects of conformal cooling was better than traditional one,with cooling time reduced by 50%,volume shrinkage rate reduced by 15%.Besides,it could adjust the mold temperature and get into the stable working condition more quickly.
出处
《中国塑料》
CSCD
北大核心
2015年第6期102-106,共5页
China Plastics
基金
国家自然科学基金(51365038)
江西省科技支撑计划(20122BBE500044)
江西省高校科技落地计划(KJLD12058)
关键词
注射成型
随形冷却
瞬态热响应分析
温度场分布
体积收缩率
injection molding
conformal cooling
thermal response analysis
temperature distribution
volume shrinkage
