管道钨极气体保护自动焊(GTA)具有可靠性高,焊接性能好,成本低等优点。最初在航空工业部门,GTA被用来焊接管道及管道装置,进而在原子能工业部门被用来焊接精密管道。六十年代后半期许多专业设计人员和技术工人由航空工业转入原子能工业部门,从而加速了焊接装置的自动化进程。七十年代中期焊接装置的可靠性 Pipe tungsten gas shielded automatic welding (GTA) has the advantages of high reliability, good welding performance and low cost. Initially in the aerospace industry, GTA was used to weld pipelines and pipe installations, which were then used to weld precision pipelines in the nuclear industry. In the second half of the 1960s, many professional designers and technical workers were transferred from the aviation industry to the atomic energy industry, thereby accelerating the automation of welding equipment. The reliability of welding equipment in the mid-1970s