铝车轮铸造模具水冷界面换热系数反算求解  

Inverse calculation of heat transfer coefficient of water-cooled interface in aluminum wheel casting mold

作　　者：董国疆[1] 李世德[1,2] 王克奇 王海翔 王佶 毕江 DONG Guojiang;LI Shide;WANG Keqi;WANG Haixiang;WANG Ji;BI Jiang(Key Laboratory of Advanced Forging and Stamping Technology and Science,Ministry of Education,Yanshan University,Qinhuangdao 066004,China;CITIC Dicastal Co.,Ltd.,Qinhuangdao 066011,China;State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]燕山大学先进锻压成形技术与科学教育部重点实验室,秦皇岛066004 [2]中信戴卡股份有限公司,秦皇岛066011 [3]燕山大学亚稳材料制备技术与科学国家重点实验室,秦皇岛066004

出　　处：《中国有色金属学报》2024年第5期1495-1505,共11页The Chinese Journal of Nonferrous Metals

基　　金：河北省自然科学基金资助项目(E2021203138),河北省中央引导地方科技发展基金资助项目(236Z1805G)。

摘　　要：铝车轮低压铸造过程中,模具温度场是影响铝液凝固的重要因素。水冷作为铸造模具的主要冷却方式,对模具温度场的影响机理仍不明晰,有待深入研究。本文以铝车轮铸造模具的边模水冷模块为研究对象,设计水冷降温实验并采集水冷过程中的模具温度数据。通过ProCAST及ANSYS分析冷却水流动状态,以实测温度数据为基础进行软件反求解,基于Beck非线性估算法,建立界面换热数值模型。通过对比分析两种界面换热系数求解方式,并正向求解以验证两种求解方式的准确性,以期为铝车轮低压铸造模拟验证提供数据支撑,有望获取冷却水与模具的真实换热系数,并揭示其传热行为和换热机理。The mold temperature field is an important factor to affect the solidification of liquid aluminum in the low pressure die casting process of aluminum wheels.As the main cooling method of casting die,the influence mechanism of water cooling on mold temperature field is still unclear and needs to be further studied.In this paper,the edge die water cooling module of aluminum wheel casting die was used as the research object,and the water cooling experiments was designed to study the influence of water cooling on mold temperature.The flow state of cooling water was analyzed by ProCAST and ANSYS,and the software inverse solution was carried out based on the measured temperature data.The numerical model of interface heat transfer was established based on Beck nonlinear estimation method.In order to provide data support for the simulation and validation of low pressure die casting of aluminum wheels,a comparative analysis of the two solution methods and forward solving were used to verify the accuracy of the two solution methods.It is expected to obtain the real heat transfer coefficient between the cooling water and the mold as well as revealing its heat transfer behavior and mechanism.

关 键 词：低压铸造 界面传热 换热系数 模拟仿真 

分 类 号：TF11.31[冶金工程—冶金物理化学]