Vertical position welding method and apparatus for practicing th

Details Vertical position welding method and apparatus for practicing th Vertical position welding method and apparatus for practicing th

1975-08-19

1976-08-17

Goldberg, E. A.

Electric heating

Metal heating

By arc

219121P, B23K 912

Patent

active

039756157

ABSTRACT:
In a vertical position welding method and an apparatus for practicing the method, front and rear water-cooling type backing shoes are slidably positioned on the front and rear surfaces of metal plates to be butt-welded, respectively, so as to form a welding space in a groove formed by the adjacent edges of the metal plates. A consumable electrode is continuously fed into the welding space, while a plasma arc generating torch fixedly provided on the backing shoe in contact with the front surface of the work generates a plasma arc to melt the adjacent edges of the metal plates to be welded, and the backing shoes and the torch are moved upward at the same speed to move the welding space in response to the melting rates of the work and the consumable electrode, thus achieving the welding of the metal plate in vertical position. Furthermore, the torch is tilted to facilitate the melting of the metal plates.

REFERENCES:
patent: 3612817 (1971-10-01), Tichelaar
patent: 3806695 (1974-04-01), Carroll

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