Multiple tube processing coil

Details Multiple tube processing coil Multiple tube processing coil

H - Electricity

01

F

H01F 7/20 (2006.01) B21D 26/14 (2006.01) B65B 7/28 (2006.01) B67B 3/10 (2006.01)

Patent

CA 2688236

Disclosed is a multiple tube processing coil for processing two or more elements (1) that are ring-shaped in the processing area (11) thereof, are made of electrically conductive material, and each tightly encompass the pressing zone of a mating piece (21). Said multiple tube processing coil comprises a pulsed power source (4) and an electric conductor (3) that is connected thereto, entirely surrounds the elements in the processing area thereof, and is U-shaped. The two legs (31) of the U are each provided, across from one another, with at least one concavity (32). The internal edges (33) of the two opposite concavities jointly have a shape that is complementary to the external edge of the cross-section of the elements and is equidistantly enlarged. At least the concavities on the internal faces of the two legs are covered with an electrically insulating layer.

Bobine de traitement de tubes multiples pour traiter dans sa zone de traitement au moins deux corps annulaires (1) en matériau électroconducteur qui, refermés sur eux mêmes, entourent respectivement la zone de pression d'une contre-pièce (21), ladite bobine de traitement comprenant une source de courant pulsé (4) et, relié à celle-ci, un conducteur électrique (3) qui entoure entièrement les corps dans sa zone de traitement, le conducteur électrique formant un U dont chacune des deux branches (31) présente respectivement au moins un évidement (32), lesdits évidements étant en regard. Les bords internes (33) des deux évidements opposés présentent respectivement une forme agrandie complémentaire et équidistante vers le bord extérieur de la coupe transversale du corps et sur les faces internes des deux branches, au moins les évidements sont recouverts d'une couche électriquement isolante.

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