大直径厚壁管气电立焊焊接技术研究

摘要

Electrogas arc welding technique for major diameter thick-walledpipe was developed. After applied this technique. the welding productivity is enhanced by big margin, and quality and apperance of weld are very better.%研究开发了大直径厚壁管气电立焊焊接技术，大幅度提高了焊接生产率，且焊缝成形美观，质量优良、稳定。