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低氢型焊条如УОНИ13/45,УОНИ13/55,上焊-41等焊条,具有良好的抗热裂缝性能,焊接高硫钢材也不易产生气孔。它有极优异的机械性能,室温时冲击韧性高达25～30公斤-米/厘米~2,因此特别适用于焊接重要的特别是动负荷工程。由于沸腾钢材偏析较大,如果采用普通钛型或锰型涂料的焊条,在焊接碳或硫较高处极易产生局部裂缝和气孔。但采用低氢型焊条焊接时,无此疵病。低氢型焊条一般只适用于直流电源,采用直流电焊机来进行焊接。如果采用交流电焊机,由于电弧燃烧不
Low-hydrogen electrodes such as УОНИ13 / 45, УОНИ13 / 55, welding -41 and other electrodes, has good resistance to hot cracking, high-sulfur steel welding is not easy to produce pores. It has very good mechanical properties, impact toughness at room temperature up to 25 to 30 kg - m / cm ~ 2, it is particularly suitable for welding important, especially dynamic load engineering. Due to the large segregation of boiling steel, if ordinary titanium or manganese coating electrode, welding carbon or sulfur in the higher prone to local cracks and pores. However, the use of low-hydrogen electrode welding, no defects. Low hydrogen electrode generally only applies to DC power supply, using DC welding machine for welding. If using AC welder, because the arc does not burn