一、各种旋弧焊方案对磁场旋弧焊的认真研究起始于五十年代末期。目前,大家都知道的有三种原理上不同的直流旋弧焊方案:第一种方案,电弧在封闭的管状焊件边缘之间燃烧(图1a);第二种方案,电弧在焊件和封闭形辅助电极之间燃烧(图1b);第三种方案,用于焊接零件的各种线性焊缝。所有这些方案都是通 First, a variety of spin arc welding program Magnetic field arc welding serious study began in the late fifties. Currently, it is known that there are three fundamentally different DC arc welding schemes: a first one in which the arc burns between the edges of the closed tubular weldment (Figure 1a); the second one, the arc in the weldment and in the closed Shaped auxiliary electrode combustion (Figure 1b); the third option for the welding of various parts of the linear weld. All of these programs are open