Research Status and Development Trend of Underwater Welding Technology

In this article,it summarized the research status of underwater welding methods at home and abroad,such as chamber type dry,local dry and wet method,mainly introduced the welding principle of wet welding method as well as the development underwater welding electrode and flux cored wire. It also analyzed some problems for underwater welding,such as alloy element loss in weld metal,high content diffusion hydrogen,too fast welding cooling rate,poor visibility,and high arc pressure and so on,as well as discussed the development trend of underwater welding technology. Finally,it pointed out that systematically research on basic welding theory is an effective way to realize underwater welding technology progress.