Abstract: A joint for rigidly and fixedly connecting in end-to-end relationship electrodes of graphite or carbon, whose ends comprise a socket with an internal screwthread into which is screwed a connector with a double screwthread or nipple which is pierced with holes acting as reservoirs containing a solid and electrically conductive cement characterised in that at least one of said reservoirs is filled with a synthetic cement formed by a thermosetting resin which in the presence of a catalyst melts at a temperature of higher than 60.degree. C. to form a liquid phase of a viscosity of lower than 2500 centipoises at between 90.degree. C. and 120.degree. C. and polymerise at a temperature higher than or equal to 120.degree. C.

Abstract: The method of the invention concerns continuous graphitization of long pre-cooked carbon-containing products.It comprises displacing the carbon-containing products in a column, along a horizontal axis of passage, inside a furnace where the packing is a fragmented carbon-containing material which is not displaced within the furnace. The column is put under stress by rams and is heated by the Joule effect.The method can be applied particularly to the production of graphite electrodes for arc furnaces in steel works.