DIRECT CURRENT ARC FURNACE OR LADLE

摘要

Direct current arc furnace or ladle with at least one arcing electrode (3) and at least one hearth connection (6-8). According to the invention the hearth connection (6-8) comprises graphite-containing bricks (7) which, prior to laying, have been heat-treated at a temperature in excess of 350 DEG C, whereby volatile components have at least partially escaped and coking has occurred to obtain a lower electrical resistivity of the bricks in comparison with untreated bricks or bricks treated at a lower temperature.