铜铝铸轧复合板复合过程数值模拟及机理研究  

Numerical Simulation and Mechanism of the Casting-rolling Copper-aluminum Clad Plates

作　　者：谢文芳 谢敬佩[2] 王爱琴[2] 毛志平[2] 田捍卫 柳培[2] Xie Wenfang;Xie Jingpei;Wang Aiqin;Mao Zhiping;Tian Hanwei;Liu Pei(Luoyang Institute of Electro-optical Devices,Aviation Industry Corporation of China.Ltd;College of Material Science and Engineering.Henan University of Science and Technology)

机构地区：[1]中国航空工业集团公司洛阳电光设备研究所 [2]河南科技大学材料科学与工程学院

出　　处：《特种铸造及有色合金》2019年第12期1294-1297,共4页Special Casting & Nonferrous Alloys

基　　金：河南省教育厅科学技术研究重点项目(14A430002)

摘　　要：采用Fluent软件建立二维稳态层流模型,选择走坯速度为0.5 m/min,浇注温度为973 K,进行不同厚度铜铝复合板的铸轧模拟。结果表明,当铝层厚度为定值时,铸轧区出口位置温度和液穴深度比随铜层厚度的减小而增大。当铜层厚度为定值时,铸轧区出口位置温度和液穴深度比随着铝层厚度的减小而减小。选择铜、铝厚度分别为8 mm和2 mm进行铸轧试验,通过SEM和EDS进行界面扫描和能谱分析,并进一步阐述了铜铝复合板铸轧复合机理,主要是通过Cu、Al原子在热和力的作用下互扩散形成金属间化合物,从而形成冶金结合。A two-dimensional steady laminar flow model was established by using Fluent software.The casting-rolling simulation of copper-aluminium clad plates with different thickness was carried out by choosing blank traveling speed of 0.5 m/min and pouring temperature of 973 K.The results show that with a given thickness of the aluminium layer,the temperature at the exit of the casting-rolling zone and the ratio of liquid cavity depth are increased with the decrease of the thickness of the copper layer.With a given thickness of the copper layer,the temperature at the exit of the casting-rolling zone and the ratio of liquid cavity depth are decreased with the decrease of the thickness of the aluminum layer.The casting-rolling process was carried out with Cu layer thickness of 8 mm and aluminum layer thickness of 2 mm.The interface scanning and energy spectrum analysis was carried out by SEM and EDS.The casting-rolling composite mechanism of copper-aluminium composite plate was expounded.

关 键 词：铜铝复合板 连续铸轧成形 数值模拟 复合机理 

分 类 号：TB331[一般工业技术—材料科学与工程] TG146[金属学及工艺—金属材料]