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前言磁驱动电弧焊又名旋转电弧焊,是一种最近发展起来的焊接方法。磁驱动电弧焊利用电弧在磁场中会发生磁偏吹的现象,使电弧在一个特殊的磁场控制下,沿着待焊接头飞速旋转,电弧高温将加热工件端面,当达到熔化状态时,迅速加压顶锻,形成接头。二次加热程序的磁驱动电弧焊接头质量好,在不用保护气体的情况下,仍能获得满意的接头,电力消耗为其它焊接方法的5～10％,焊接时间为其它焊接方法的1/5～1/10,焊机上没有摩擦焊所必须的迥转部分,接头上没有闪光焊的内毛刺,焊接变形量小,无须填充材料,这些特点,将使磁驱动电弧焊在生产中进一步得到推广使用。
Foreword Magnetic drive arc welding, also known as rotary arc welding, is a recently developed welding method. Magnetically driven arc welding using the arc in the magnetic field will occur partial magnetic blow phenomenon, so that the arc in a special magnetic field control, rapid rotation along the weld to be welded, high temperature arc will heat the workpiece surface, when it reaches the melting state, the rapid increase Forging pressure to form a joint. Magnetically driven arc welds of the second heating process are of good quality and can be satisfactorily welded without the use of shielding gas. The power consumption is 5 to 10% of other welding methods and the welding time is 1/5 of other welding methods ~ 1/10, there is no friction welding on the welder must turn around the part, there is no flash flash welding joints, welding deformation is small, no filler material, these characteristics will make the magnetic drive arc welding in the production of further Promote use.