Method and device for producing long metal tubes

Details Method and device for producing long metal tubes Method and device for producing long metal tubes

B - Operations, Transporting

21

C

B21C 37/08 (2006.01) B21C 37/083 (2006.01) B21C 47/18 (2006.01) B65H 49/20 (2006.01) G02B 6/44 (2006.01)

Patent

CA 2219453

During the production of long metal tubes with small diameters, where a metal tape is drawn from an annular coil, is gradually formed into a tube with a longitudinal slot and the longitudinal slot is welded, the internally and externally located metal tape ends of a number of annular coils are interconnected by welding, and the annular coils are horizontally positioned on tension rings which are attached to a rotatable take-up drum. The metal tape with the welded ends is drawn off without interruption.

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