METHOD OF UNDERWATER WELDING

摘要

A method for carrying out underwater welding, according to which method the area to be welded is covered by means of a watertight structure (1), in whose interior the welding is performed. According to the invention, a bottomless box-shaped local chamber (1) is used as the watertight structure, into which said chamber sealing and insulating material (11) is fed so that water cannot penetrate to the interior of the edges of the chamber (1) and which chamber is shifted forwards at the same rate as the welding makes progress. An animal-fat based pasty material is preferably used as the sealing and insulating material (11).