二氧化碳气体保护焊在泥浆泵液缸修复中的应用

Application of welding technology with protective CO_2 gas system to repair liquid cylinder of mud pump

钻井泥浆泵液缸焊接过程存在飞溅过大、喷嘴易堵塞、焊缝气孔多、有裂纹、焊接质量合格率低等问题,采取优选焊接参数、改善焊接工艺、增强二氧化碳气体在焊接过程中的保护作用、安装电压装置、加大喷嘴尺寸等技术措施,可有效提高泥浆泵液缸焊接合格率。

There exist some problems in the welding process about liquid cylinder of drilling mud pump,such as excessive spatter loss,nozzle easily being plugged,more porous welded seams,having crackles and low qualified percentage of welding quality. It can increase welding qualified percentage of liquid cylinder of mud pump to adopt some technical methods,such as optimizing welding parameters, improving on welding technology,improving protective effect of CO_2 gas in the welding process,installing voltage conditioner,and enlarging nozzle sizes of welding guns,etc.