高频感应焊接的特点及其在异种金属焊接中的应用  

Characteristic and application in dissimilar metals welding of high-frequency induction welding

作　　者：李连杰[1] 戴乐[2] 

机构地区：[1]海军工程大学船舶与动力工程学院,湖北武汉430033 [2]海军驻洛阳407厂军代表室,河南洛阳471039

出　　处：《电焊机》2011年第6期60-63,共4页Electric Welding Machine

摘　　要：回顾了高频感应的定义和发展,介绍了高频感应加热焊接的基本原理和其加热速度快,焊接热影响区小,能量集中,冷却时间短以及环保、节能等特点。针对异种金属焊接存在的难点,综述了常用的焊接方法及其优缺点。高频感应焊的快速加热和表面集肤效应的特点,使其能够实现异种金属钎焊和表面熔覆焊的冶金结合,接头性能优良。指出感应圈的形状及其与工件之间的相互位置对加热的质量和效率起至关重要的作用。研究表明,通过在钢表面预镀一层锌作为钎料并改善铝在钢上的润湿性,控制温度低于钢的熔点而高于铝的熔点,采用高频感应焊可实现钢-铝良好的直接熔焊结合。The definition and development of high-frequency induction welding are reviewed and the fundamental principle and characteristic are introduced.The characteristic is that heating speed is fast,heat affected zone is small,energy is centralized,cooling time is short and so on.To the difficulties of dissimilar metals welding,advantages and disadvantages of general welding ways are studied.High calefaction speed and surfacing effect of high-frequency induction can realize metallurgy welding of brazing and surface fusion welding of dissimilar metals and the capabilities of the joint are excellent.The shape of inductor and the distance between workpiece and inductor are important to quality and efficiency.The experimental results indicate that high-frequency induction welding can melt aluminum to steel directly by the way of galvanization on steel and control the temperature between the melting point of steel and that of aluminum.

关 键 词：高频感应 异种金属 焊接 

分 类 号：TG441.1[金属学及工艺—焊接]