竖向钢筋自动电渣压力焊中的接头质量问题,一般有焊疱偏心,倾斜、咬边、未熔合、焊疱不均、气孔、烧伤、焊疱下溜等缺陷,敲去溶渣壳,就可发现,应立即采取措施——割掉重新焊接,不会给工程质量造成什么隐患。唯独内部夹杂的焊疱,外表成型很好,肉眼看不见任何缺陷,往往会给工程容量造成事故隐患。我在实践中体会到,要确定焊疱内部是否存在夹杂,首先要确定焊接过程中是否断过弧。焊疱内部夹杂问题来源于渣池电压的不稳定性。当渣池电压过低时,表明两钢筋之间距离 The quality problem of joints in vertical steel automatic electroslag pressure welding generally includes defects such as eccentricity of the welding bead, tilting, undercut, unfused, uneven welding burrs, blowholes, burns, and welding slag slipping. It can be found that measures should be taken immediately – cutting off re-welding will not cause any hidden danger to the project quality. Only the internally contained welding burrs have a good appearance, and no defects are visible to the naked eye, which often results in accident hazards in the engineering capacity. In practice, I realized that to determine whether there is inclusion in the interior of the burr, it is first necessary to determine whether the arc has broken during the welding process. The problem of internal inclusions in the solder pot arises from the instability of the slag cell voltage. When the slag pool voltage is too low, it indicates the distance between two steel bars