WELDING ROD FOR UNDERWATER WELDING

摘要

Invention relates to a welding rod for underwater welding. Welding rod includes a central, preferably metal, core element (1), the end of which away from a welding object is meant to be connected to a current source; a covering (2) surrounding the core element (1); and an outer coating material layer (3) surrounding the covering. To prevent fast cooling of the weld the welding rod includes at least one longitudinal flow channel (12) extending to the free ending of the welding rod and an additive chamber (4, 5) therein, where from the additive (7) discharges under the pressure inside the chamber via the flow channel (12) to the arc area.