Method and equipment for the manufacture of a needle-rib...

Details Method and equipment for the manufacture of a needle-rib... Method and equipment for the manufacture of a needle-rib...

B - Operations, Transporting

21

D

B21D 53/02 (2006.01) B21C 37/22 (2006.01) B21C 37/26 (2006.01) B23P 15/26 (2006.01) F28F 1/12 (2006.01)

Patent

CA 2141476

An apparatus and a method for manufacturing a needle-rib heat-exchanger construction including a band which is wound around a tube is described. Initially, cuts are formed on both sides of an elongate band and thereafter the band is passed through a series of engaging former wheels. A bottom part is formed into the band and top portions of the band are folded onto the bottom part. Needle-shaped ribs are formed to project from the top portions and are placed at an angle in relation to one another. The band with needle-shaped ribs is then mounted on the tube.

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