一、焊接原理电阻焊是采用交流电,利用被焊接材料本身的阻抗产生热量来将材料熔接的一种焊接技术,如图1所示。当罐身在上下焊轮之间通过时,旋转的盘形电极焊轮在弹簧力的作用下对材料加压,上下焊轮之间的低电压 First, the welding principle Resistance welding is the use of AC, the use of the impedance of the material being welded to produce heat welding of a welding material technology, as shown in Figure 1. As the can body passes between the upper and lower welding wheels, the rotating disc-shaped electrode wheel pressurizes the material under the action of the spring force and the low voltage between the upper and lower welding wheels