Apparatus for tack welding a tube to a tubesheet

Details Apparatus for tack welding a tube to a tubesheet Apparatus for tack welding a tube to a tubesheet

1987-03-26

1989-01-17

Shaw, Clifford C.

Electric heating

Metal heating

Of cylinders

21912511, B23K 912

Patent

active

047989289

ABSTRACT:
Welding apparatus for positioning a tube with respect to a tubesheet and then tack welding the tube to the tubesheet. The welding apparatus has a pilot which can be positioned within the tube and then expanded so that when the pilot is moved the tube can be moved against a tube stop on the main body of the welding apparatus which can then be moved so that the tube is in a predetermined position with respect to the tubesheet and the welder can be energized to tack weld the tube preparatory to the final welding operation which permanently fixes it to the tubesheet.

REFERENCES:
patent: 3513286 (1970-05-01), Puls
patent: 3643059 (1972-02-01), Hill et al.
patent: 4465917 (1984-08-01), Heider
patent: 4594495 (1986-06-01), Glorioso

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