我厂虽然已经掌握了20K鋼板的汽包环缝埋弧自动焊接技术,并且已运用到生产中。但是从整个情况来看,还有很多需要改进和注意的地方。目前生产的锅爐汽包,壁厚都是46公厘的。图1表示汽包环缝的坡口,先是在焊缝外面用13/55焊条进行手工底焊,然后在里面割去焊缝焊根,也进行手工底焊。外面的主要焊缝采用多层自动焊接,焊缝层次如 Although I have mastered the factory 20K steel drum submerged arc welding ring automatic welding technology, and has been applied to the production. But from the whole point of view, there are still many areas that need improvement and attention. The current production drum boiler, wall thickness is 46 mm. Figure 1 shows the drum ring groove groove, first outside the weld with 13/55 electrode for manual welding, then cut the weld root in the weld, but also for manual welding. The outside of the main weld using multi-layer automatic welding, such as seam level