Patents Assigned to VEB Edelstahlwerk "8 Mai 1945" Freital
  • Metallurgical plasma melting process
    Patent number: 4626654
    Abstract: A metallurgical plasma melting process wherein a plasma burner and a separate start-up burner disposed alongside same in the same port have their axes intersecting in the furnace at an acute angle. Only the start-up burner is operated initially to form a crater in material in the furnace. Thereafter the plasma burner is ignited and the start-up burner is turned off when the plasma burner is operating at full efficiency.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: December 2, 1986
    Assignee: VEB Edelstahlwerk "8 Mai 1945" Freital
    Inventors: Fred Esser, Detlev Klopper, Walter Lachner, Gerhard Scharf