Method and a device for welding cylindrical elements to one...

Details Method and a device for welding cylindrical elements to one... Method and a device for welding cylindrical elements to one...

B - Operations, Transporting

23

K

78/54

B23K 20/00 (2006.01) B23K 9/028 (2006.01) B23K 37/053 (2006.01)

Patent

CA 1049300

ABSTRACT OF THE DISCLOSURE This invention relates to a device for welding cylindrical elements headwise to one another. The welding is achieved by subject- ing the cylindrical parts during the welding operation to a radial pressure near the welding area, which radial pressure may be directed inwardly. The device employed comprises an elastic ring to be arranged around the parts to be welded, said ring being accommodated in a sleeve in which a conduit for the supply of pressurized medium to the space between the ring and the sleeve is arranged. The ring can be displaced laterally so as to engage and align both of the cylindrical elements. The elastic ring has a circumferential groove at the welding site such that the ring does not contact the elements near the welding site. Vent channels communicate with the circumferential groove.

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