Patents Assigned to Techom Import-Export GmbH
  • Patent number: 6873641
    Abstract: A electrode and method for periodic elongation of the electrode of an electric arc furnace, includes screwing to the electrode column, a new electrode and a nipple with a longitudinal hole and a metal rod therein. The rod melts at working temperatures of the furnace and fills cavities in the joint between the electrodes and nipple, as well as partially filling an additional cavity in the body of the electrode. A gas mixture from the additional cavity is free of liquid metal being drawn to the working area of the furnace through the holes in the body of the electrode. The electrode is made with additional cavities, placed along the central axis in the bottom of the threaded sockets, the cavities having different diameters and depths and one of them being connected to the external surface of the electrode by holes.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: March 29, 2005
    Assignee: Techom Import-Export GmbH
    Inventors: Viktor Nikolaevich Khloponin, Ewald Schumacher