Manufacture of metal tubes

Details Manufacture of metal tubes Manufacture of metal tubes

B - Operations, Transporting

21

C

26/155

B21C 37/06 (2006.01) B21C 37/08 (2006.01) B21C 37/087 (2006.01) B23K 1/18 (2006.01) H01B 13/26 (2006.01)

Patent

CA 2040665

ABSTRACT MANUFACTURE OF METAL TUBES (Figures 1 & 2) An apparatus for forming metal tubes is shown in which a metal strip 2 is passed through the apparatus and is formed by a combination of rollers 17, 17', 19, and dies 15, 24 into a shape defining a tube. Prior to the completion of the formation of the metal strip 2 into a shape defining a tube, a brazing wire 1 is supplied through rollers 8 onto the metal strip 2 between two edge portions thereof to be bonded together. The edge portions are bonded together by means of a frictional wheel 27 rotating at high speed.

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