Method of making a lanced and offset fin

Details Method of making a lanced and offset fin Method of making a lanced and offset fin

B - Operations, Transporting

21

D

B21D 53/02 (2006.01) B21D 13/04 (2006.01) B21D 31/04 (2006.01)

Patent

CA 2452771

Slow production speeds in the manufacture of lanced and offset finds for use in heat exchanger tubes are eliminated through the use of a method of forming the fins involving a plurality of roll assemblies (60, 62, 64, 66, 68, 70) located along a forming path which may operate on a strip (56) of fin forming material of indetermine length. After being formed, the fin may be cut to any desired length.

La présente invention concerne un procédé de formation des ailettes de tubes d'échangeur de chaleur qui élimine les vitesses de production lentes desdites ailettes. Dans ce procédé, on utilise une pluralité d'ensembles cylindres (60, 62, 64, 66, 68, 70) situés le long d'un chemin de formage qui peuvent opérer sur une bande (56) de matière de formation d'ailettes d'une longueur indéterminée. Une fois formée, l'ailette peut être coupée à n'importe quelle longueur désirée.

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