System and method for joining tubes to sheets in a tubular...

Details System and method for joining tubes to sheets in a tubular... System and method for joining tubes to sheets in a tubular...

B - Operations, Transporting

21

D

B21D 26/14 (2006.01) B21D 53/08 (2006.01) F28F 9/16 (2006.01) F28F 9/22 (2006.01)

Patent

CA 2486943

A system and method for expanding, joining or securing a plurality of tubes by electromagnetic expansion to a plurality of sheets in a tubular heat transfer system. The system and method involve the automatic sensing and positioning of a electromagnetic coil in operative relationship with at least a portion of a tube and an inner wall of a sheet and then energizing the electromagnetic coil to expand the portion of the tube to engage the inner wall of the sheet, thereby securing the tube thereto. A tubular heat transfer system tube expander and method are also shown.

L'invention concerne un système et un procédé qui permettent de mandriner, assembler ou fixer par expansion électromagnétique une pluralité de tubes à une pluralité de plaques dans un système de transfert de chaleur tubulaire. Le procédé consiste à détecter automatiquement une bobine électromagnétique et à la positionner dans une relation fonctionnelle avec au moins une partie d'un tube et une paroi intérieure d'une plaque. Le procédé consiste ensuite à exciter la bobine électromagnétique pour expanser ladite partie du tube et l'amener au contact de la paroi intérieure de la plaque pour y fixer le tube. L'invention concerne en outre un extendeur d'un système de transfert de chaleur tubulaire et un procédé associé.

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