Method of arc welding

Details Method of arc welding Method of arc welding

1977-03-07

1979-05-15

Goldberg, E. A.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219 74, 21913741, B23K 916

Patent

active

041549996

ABSTRACT:
In underwater arc welding in a chamber filled with gas a consumable flux cored arc welding wire is fed to a welding torch and an arc is struck between the wire and the work to be welded so as to effect transfer of weld metal from the wire to the work. The arc welding wire contains at least one strong deoxidizer selected from the group consisting of magnesium, aluminium, zirconium, titanium, barium, lithium and calcium. A shielding gas is fed to the torch and emerges therefrom as an annular curtain of gas which shields the arc. The shielding gas also helps stabilize the arc from the effects of underwater pressure. The shielding gas comprises at least one oxygen-containing gas selected from oxygen and carbon dioxide.

REFERENCES:
patent: RE26549 (1969-03-01), Cary
patent: 2281070 (1942-04-01), Jennings
patent: 3527916 (1970-09-01), Ebert
patent: 3794804 (1974-02-01), Berghof
patent: 3837171 (1974-09-01), Scurlock
patent: 3843867 (1974-10-01), Helton
patent: 3876852 (1975-04-01), Topham
Kollman "Solving Problem of GMAW Fume Extraction".

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