CARBON ELECTRODES AND THEIR UNION ELEMENTS WITH DIRECTLY STRUCTURED CONTACT SURFACES.

摘要

Electrode column provided with carbon electrodes (1) with front internal boxes and threads (4) and with carbon fittings (2) that each join two of such electrodes (1), or provided with carbon electrodes (1 ) with an internal thread and box (4) on one front side and with an integrated fitting on the other front side, whose column is intended for use in an electric arc furnace intended for the production of high melting metals, having Carbon electrodes (1) and carbon fittings (2) an ideally configured contact surface with flaky protrusions protruding from it and are directionally structured, characterized in that the directionally structured flaky protrusions protrude from the ideally configured contact surface in a small height range of 1 to 100 micrometers, and because the adjacent contact surfaces of a bolted joint have a clamping pressure in the range of 0.1 to 80 N / mm2.