针对煤气发生炉HT200铸铁底盘裂纹的焊接修复问题,基于对灰铸铁焊接性分析和对焊条电弧冷、热焊法的比较,选用了焊条电弧冷焊工艺,采用了栽丝和堆焊过渡层法,通过选择正确的焊接规范并把握合理的焊接顺序与方向,使之焊接修复取得了圆满成功。 Aiming at the welding repair problem of HT200 cast iron chassis crack of coal gasifier, based on the analysis of gray cast iron welding and arc cold and hot welding of welding arc, welding arc welding technology was adopted. , By selecting the correct welding specifications and to grasp the reasonable order and direction of welding, making the welding repair has been a success.