复合材料构件热压罐成型模具温度场优化  

Optimization of temperature field in molds for hot press can forming of composite components

作　　者：耿蕰娜 马贵春[1] 刘洋[1] 张化斌 王磊[1] 郭思博 GENG Wenna;MA Guichun;LIU Yang;ZHANG Huabin;WANG Lei;GUO Sibo(School of Aerospace Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学航空宇航学院,太原030051

出　　处：《兵器装备工程学报》2024年第12期240-246,共7页Journal of Ordnance Equipment Engineering

摘　　要：热压罐传热机制的特点导致模具不同部位受热不均匀,固化梯度最终影响制品的固化质量,为了提高模具型面固化过程中的温度均匀性,利用仿真手段建立热压罐流固耦合的仿真模型,对热压罐工作过程中的温度场、流场进行分析,提出在模具前端添加水平板或竖直板2种方法,通过对比优化前后的数据及温度分布云图,证明了2种优化模具均实现了提高固化过程中型面温度均匀性的效果。其中水平板模具能够有效避免型板前端与热气流的直接接触,缩小温度领先区域面积;竖直板则通过加快型面下局部气流流速增强模具后部与热气流的导热强度。The characteristics of the heat transfer mechanism in the hot-press tank result in uneven heating of different parts of the mold,and the curing gradient ultimately affects the curing quality of the product.In order to improve the temperature uniformity during the solidification process of the mold surface,a simulation model of the flow-solid coupling of the hot-press tank is established using simulation methods.The temperature field and flow field during the operation of the hot-press tank are analyzed,and two methods of adding a horizontal plate or a vertical plate at the front of the mold are proposed.By comparing the data and temperature distribution contour maps before and after optimization,it is demonstrated that both optimized molds achieve the effect of improving the temperature uniformity of the mold surface during the solidification process.The horizontal plate mold can effectively avoid direct contact between the front end of the mold and the hot air flow,reducing the area of the temperature leading region;the vertical plate enhances the heat conduction intensity between the back of the mold and the hot air flow by accelerating the local airflow beneath the mold surface.

关 键 词：复合材料 热压罐 温度场 COMSOL 结构优化 

分 类 号：V19[航空宇航科学与技术—人机与环境工程] TB332[一般工业技术—材料科学与工程]