【摘要】 用MAG焊代替埋弧焊法焊接管道内环缝取得了良好的结果,生产效率高且质量好,焊缝通过X射线探伤可达到Ⅰ级合格。另外,由于采用焊缝跟踪装置。不但减轻了劳动强度,而且提高了产品合格率。更多还原

【Abstract】 The good result was obtained by using MAG welding in stead of SAW for insid girthwelds of pipes. Therefore, both welding productivity and weld quality have been improved.Favourable weld integrity was proved with first class of X-ray radiographics. By using seamtracking device, not only labour intensity is lightened but reiction tale is reduced, too.更多还原