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水下切割和水下焊接主要有水下等离子切割和水下等离子焊接;另外还有水下电子束焊接,水下爆炸切割和螺栓的水下压入等。美国依靠水下试验室的成功,建造一个水下焊接室,可在其内进行大气条件下的焊接;日本和西德也在水面以下对船只滑道进行了焊接,其方法是在焊合处设一防水带。水下燃烧切割燃烧器可分为三种:①使用氧、乙炔和压缩空气(水深最大可达15米);②使用氧、氢和压缩空气(水深最大可达40米);③使用氧和液态燃料(水深最大可达60米)。
Underwater cutting and underwater welding are mainly underwater plasma cutting and underwater plasma welding; In addition there are underwater electron beam welding, underwater explosion cutting and underwater bolt into. The United States relies on the success of its underwater laboratory to build an underwater welding cell where it can be welded under atmospheric conditions and Japan and West Germany also weld the ship’s chute below the surface of the water by welding Set a waterproof tape. Submerged combustion burners can be divided into three types: ① using oxygen, acetylene and compressed air (water depth up to 15 meters); ② the use of oxygen, hydrogen and compressed air (water depth up to 40 meters); ③ the use of oxygen and Liquid fuel (water depth up to 60 meters).