Welding apparatus for welding tubes to the back face of a tube s

Details Welding apparatus for welding tubes to the back face of a tube s Welding apparatus for welding tubes to the back face of a tube s

1983-03-03

1985-12-03

Albritton, C. L.

Electric heating

Metal heating

Of cylinders

21912511, 219 60A, B23K 916

Patent

active

045567743

ABSTRACT:
A tube sheet welding apparatus for the rear or back face of a tube sheet. The welding head apparatus includes a welding head housing with an internal opening therethrough. The particular tube to be welded is to be located through the internal opening. The welding head housing is to be separatable into two separate halves and to be clamped tightly onto the tube to be welded. The welding electrode is mounted within a welding electrode housing which is located within the welding head housing. The welding electrode, as well as the welding electrode housing, is rotated through a gear assembly to complete the welding operation of the tube to the tube sheet. After welding, the welding head housing is split apart permitting separation of such from the tube that has now been welded permitting movement of the welding head housing to another tube that is then to be welded. Inert gas is to be supplied to the welded area through an inert gas passage assembly located within the welding head housing. Electrical energy for the welding electrode is conducted through a cable which is mounted within the inert gas supply conduit.

REFERENCES:
patent: 3395262 (1968-07-01), Kazlauskas
patent: 3400237 (1968-09-01), Kazlauskas
patent: 3461265 (1969-08-01), Spiro
patent: 3702915 (1972-11-01), Vilkas et al.
patent: 3708647 (1973-01-01), Acker
patent: 3746832 (1973-07-01), Bernard et al.
patent: 3927295 (1975-12-01), Schuster et al.
patent: 4262187 (1981-04-01), Savor

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