随着海洋开发的发展,国外对水下焊接越来越重视。铺设海底输油管、建造海洋油田钻采设备、修理水电站送水管和船舶等都已采用水下焊接。水下焊接分干法和湿法两类。干法是在密封工作室中将水排除进行焊 With the development of marine development, foreign countries attach more and more importance to underwater welding. Submarine pipelines have been laid, drilling equipment for offshore oil fields have been built, water pipes for ships and ships repairing hydropower stations, etc. have been underwater welded. Underwater welding sub-dry method and wet two categories. Dry method is to exclude the water in the sealed studio welding