Electrode for arc welding and method for underwater welding

Details Electrode for arc welding and method for underwater welding Electrode for arc welding and method for underwater welding

1983-05-24

1986-02-04

Envall, Jr., Roy N.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

149 37, 2191451, 2191461, B23K 35365

Patent

active

045688133

ABSTRACT:
An electrode comprising a base rod and a hard coating is coated with a powder coating comprising thermite, a gelling agent, and optionally particles of hard coating material that swells upon contact with water and forms a gelatinous coating upon use in underwater arc welding, and acts as an insulating, coating, and fluxing agent in underwater arc welding is disclosed.

REFERENCES:
patent: 2410461 (1946-11-01), Ronay
patent: 3694259 (1972-09-01), Chapman
patent: 4220487 (1980-09-01), Andersen
patent: 4392908 (1983-07-01), Dehnel

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