铜铝高频感应焊接工艺的探究  

Study on the Process of Copper-aluminum by High Frequency Induction Welding

作　　者：王艳艳[1] 刘平[1] 刘新宽[1] 王子延 王冰[1] 曹凯 

机构地区：[1]上海理工大学材料科学与工程学院,上海200093 [2]亚仕龙汽车科技(上海)有限公司,上海200433

出　　处：《有色金属材料与工程》2017年第5期260-265,共6页Nonferrous Metal Materials and Engineering

基　　金：国家自然科学基金资助项目(51201107)

摘　　要：运用新型感应加热工艺,通过固-液-固相复合法制备铜/铝复合材料.由于加热功率和加热时间会影响结合层厚度的形成,根据感应加热原理及其焊接过程中焊接速度快、铝融化温度高以及铜铝材料紧密接触等特点,对已有焊接设备进行改进.使用直径为0.1 mm、可耐高温的镍铬-镍硅(NiCr-NiSi)表面瞬态热电偶对铜铝接触面之间的温度进行测量,设计与制造了加热时间控制器及热电偶测温装置,得到在焊接过程中不同感应加热功率条件下加热温度与加热时间之间的工艺曲线,得知铜铝运用感应加热工艺进行焊接时,不同加热功率对应不同的加热时间,感应加热功率越大,加热速率越大,所用加热时间越少;当感应加热功率为12.63kW、加热时间为24s时,所制备的铜铝复合材料结合层效果最佳.The bonding preparation process of copper and aluminum composite was studied.The solid-liquidsolid phase method is applied by using an induction heating system,and the thickness of bonding layer influenced by heating power and time is studied as well.A welding equipment is redesigned.Besides,a transient temperature device and a power time control system are made to achieve precise control for the welding process.A transient NiCr-NiSi thermocouple of0.1 mm is used to monitor welding temperature of Cu/Al surface,and the curves of heating temperature vs heating time are obtained under different heating power.Optimized test data of heating power and time shows that the best bonding layer is created under heating power of 12.63 kW and heating time of 24 s.

关 键 词：铜铝复合材料 高频感应焊接 设备改进 表面热电偶 工艺参数 

分 类 号：TG457.1[金属学及工艺—焊接]