试验的提出我厂从1966年开始制造高压容器以来,对手工焊焊缝都采用低氢型碱性焊条进行焊接,例如φ350以下的环缝,层板式容器的层板纵缝,部份深坡口环缝等都采用 T5051或T5052低氢型碱性焊条,电源都用直流。我厂直流焊机很少,往往不够使用,影响生产,同时低氢焊条还产生氟化氢有毒气体,对焊工身体健康有所影响。自从在全国推广采用酸性焊条焊接普通低合金钢后,我们就产生了在高压容器上采用酸性焊条的想法,既 Test put forward Since 1966 I plant manufacturing high pressure vessels, the manual welding of low-hydrogen alkaline welding electrodes are used for welding, such as φ350 below the ring seam, laminar laminate horizontal seam, some deep slope Mouth ring joints are used T5051 or T5052 low-hydrogen alkaline electrode, the power supply are used DC. I plant a small number of DC welder, often not enough to use, affecting production, while low hydrogen electrode also produces toxic hydrogen fluoride gas, the welder’s health have an impact. Since the introduction of acidic welding electrodes for ordinary low alloy steel throughout the country, we have created the idea of ​​using acidic welding electrodes on high pressure vessels. Both