| 摘要 |
The invention relates to a DC arc furnace having at least one arc electrode and a bottom terminal. The crown roof 3, at least near to the electrodes 1, consists of a material 4, 6 resistant to thermal shock, such as plate- lined tile and/or graphite containing tile or mass and/or water-cooled elements 9, whereby the roof is electrically insulated from the melt in the furnace 7. <IMAGE> |
