Patents Assigned to Dider Werke AG
  • Patent number: 6217825
    Abstract: In a process for splashing and/or teeming liquid metal, in particular steel, through a discharge in the wall or in the bottom of a metallurgical vessel, the discharge is electromagnetically coupled to the electromagnetic field of at least one fluid-cooled, in particular air-cooled, inductor. The inductor and the discharge are at least partially disposed in the wall or in the bottom of the metallurgical vessel. For teeming, the electromagnetic field of the inductor, or of the inductors, is coupled directly to the discharge and also the liquid metal. For this purpose, the frequency of the electromagnetic field or the electromagnetic fields, if appropriate, is adjusted correspondingly.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: April 17, 2001
    Assignee: Dider Werke AG
    Inventors: Raimund Brückner, Daniel Grimm
  • Patent number: 5902509
    Abstract: A method and an apparatus for inductively heating a refractory shaped member provided with an internal space, particularly for a metallurgical vessel, enable as rapid, uniform heating of the shaped member as possible. An inner inductor is introduced into the internal space, the shaped member is heated from the interior by such inductor, and the inductor then is removed from the internal space.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: May 11, 1999
    Assignee: Dider-Werke AG
    Inventors: Raimund Bruckner, Rudiger Grau, Daniel Grimm, Steve Lee