电弧向钢水传热(Some of the benefits attributed to foamy slag in EAF are decreased heat losses to the sidewall, improved heat transfer from the arcs to the steel, reduced power and voltage fluctuations, reduced electrical and audible noise, increased arc length without increasing heat loss and reduced electrode and refractory consumption. 电弧炉使用泡沫渣的优点是：降低热量传向炉墙造成的热损、改善电弧向钢水的传热、降低电功率和电压波动、降低电源音频噪声、增加电弧长度但不增加热损失以及降低电极和耐火材料消耗。)
电弧对炉墙的辐射(At the start of meltdown in electric arc furnace the radiation from the arc to the sidewalls is negligible because the electrodes are surrounded by the scrap. 电弧炉开始熔化时，电极被废钢包围，因而电弧对炉墙的辐射作用可以忽略不计。)