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近几年来,直流电阻焊系统主要用于特殊焊接或高能焊接,如缝焊、铝焊及航空件的焊接,而汽车工业的大量焊接工作,几乎无例外地依靠传统的单相交流电阻焊系统。随着自动化技术的出现及对轻型焊接件的需要,一种集成化的控制器-变压器-整流器系统应运而生。由于“方波”电源的整流作用,此系统是以无波动的直流电进行工作的。与传统的交流电系统相比,此系统比较经济,于是,促进了关于对交流电阻焊和直流电阻
In recent years, the DC resistance welding system is mainly used for special welding or high-energy welding, such as seam welding, aluminum welding and aviation parts welding, and a large number of welding work in the automotive industry, almost without exception rely on the traditional single-phase AC resistance welding system . With the advent of automation technology and the need for lightweight welded parts, an integrated controller-transformer-rectifier system has emerged. Due to the rectification of the “square wave” power supply, the system operates with undamped direct current. Compared with the traditional AC system, this system is more economical, thus promoting the AC resistance welding and DC resistance