介绍了电弧偏弧理论。
试验表明，三电极直流钢包炉技术可解决底电极式直流钢包炉存在的不足，使炉子加热速度快和不发生偏弧现象。
The results show that threeelectrode DC ladle furnace, increasing heating speed and without arc bias, can overcome the shortcomings of bottom-electrode DC ladle furnace.
铣边工艺被广泛用于螺旋缝埋弧焊管生产，但控制不好会导致焊管出现焊偏、未焊透等缺陷。
The edge milling process is widely used for manufacture of SSAW pipes. However, in case that proper control is not ensured, defects like welding misalignment or non-through-welding may be caused.
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