Device for welding inside a tube of small diameter

Details Device for welding inside a tube of small diameter Device for welding inside a tube of small diameter

1988-07-07

1989-04-18

Godici, Nicholas P.

Metal fusion bonding

Including means to move or guide applicator

228119, 2940209, 2940216, 219 602, 219 66, 285 15, B23K 3700, B23K 9225, F16L 5518

Patent

active

048219436

ABSTRACT:
The drive mechanism for driving the welding head (17) in rotation in the tube is arranged in a motor casing (18) inserted between first and second sections (16a, 16b) of a flexible tubing. The translational movements of the welding head (17) for positioning it in the tube (3) are provided by the sections (16a) of the flexible tubing. The transmission of rotation between the drive mechanism and the welding head (17) is provided by a flexible transmission member arranged in the second section (16b) of the flexible tubing. The device is intended in particular for welding a small repair liner at any height in a steam generator tube of a pressurized-water nuclear reactor.

REFERENCES:
patent: 4410391 (1983-10-01), Thomas et al.

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