Graphite electrode with an electrical connecting element

H - Electricity – 05 – B

Patent

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H05B 7/101 (2006.01)

Patent

CA 2744301

The invention relates to a graphite electrode with an electrical connecting element as well as to a furnace for graphitizing carbon- containing materials by means of such graphite electrodes. According to the invention, it was found that the drawbacks known from the prior art are eliminated by establishing an electrical connection between the graphite electrode and the connecting element by means of wedge- shaped contacting elements, The contact pressure between the contact element and the wedge-shaped surface on the graphite electrode required for electrical conductivity of the interface can be influenced by means of the wedge angle and the contact surface.

La présente invention concerne une électrode de graphite comportant un raccord électrique, ainsi qu'un four mettant en uvre une telle électrode de graphite pour effectuer la malléabilisation par graphitisation de matières carbonées. Pour venir à bout des inconvénients connus en l'état actuel de la technique, l'invention propose d'utiliser des plots de contact cunéiformes pour réaliser la liaison électrique entre l'électrode de graphite et le raccord. La pression de contact que demande la conduction électrique au niveau de la transition entre le plot de contact et la surface cunéiforme située sur l'électrode de graphite s'obtient en agissant sur l'angle des coins et la surface de contact.

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