The project is supported by National Natural Science Foundation of China (40776054).
The research of gas shielding stability technology, playing a key role in underwater local dry welding, was introduced in this paper. The study includes shielding cup design, gas flow simulation, draining and welding ...
supported by National Hi-tech Research and Development Program of China(863 program, Grant No. 2002AA602012);National Natural Science Foundation of China(Grant No. 40776054);Funding Project for Academic Human Resources Development in Institutions of Higher Learning Under the Jurisdiction of Beijing Municipality of China
Automatic weld seam tracking technology to be used in hyperbaric underwater damaged pipeline repair welding is much more important, because of poor bevel preparation and severe working condition. A weld seam tracking ...