Method and apparatus for underwater submerged arc welding

Details Method and apparatus for underwater submerged arc welding Method and apparatus for underwater submerged arc welding

1976-06-07

1978-01-17

Goldberg, Elliot A.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219 73R, 219 73A, B23K 918

Patent

active

040694089

ABSTRACT:
According to the method and apparatus of this invention, water is kept away from the arc in underwater arc welding by means of material contained in a water-tight enclosure. The water-tight enclosure is formed by pressing the seal at the bottom of the enclosure against the object to be welded and by closing the opening for the electrode on top of the enclosure by using the fluid nature of a viscous polymer. Gas generated in the enclosure during welding is expelled through check valves located along two longitudinal sides of the enclosure.
The enclosure is prepared above the water surface and then delivered to the welding site. No inert gas is needed.

REFERENCES:
patent: 3876852 (1975-04-01), Topham

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