世界第一台电弧炉诞生于上个世纪末，那是一台直流电弧炉。在以后的数十年里，却一直是交流电弧炉占优势。直到１９８０年，直流电弧炉才再次站住脚，并受到重视。直流电弧炉的再次兴起是在２０世纪８０年代的最后几年。那时，据称它最突出的优点是降低了电极、能源和耐火... The world’s first electric arc furnace was born at the end of last century, it is a DC electric arc furnace. In the decades that followed, AC electric arc furnaces dominated. It was not until 1980 that the DC electric arc furnace was once again respected and valued. The re-emergence of DC arc furnaces was the last few years of the 1980s. At the time, it was said that its most prominent advantage was the reduction of electrodes, energy and fire resistance ...