Patents Assigned to Szekesfehervari Konnyufemmu
  • Process for the heat treatment of coils of metallic strip, preferably of aluminum and aluminum alloys
    Patent number: 4124416
    Abstract: A process for the heat treatment of coils of aluminum and aluminum alloys in which lubricants applied to the surfaces of the metal strip, the usual oxide layer and a spacing between turns formed during coiling permit the application of a voltage across the coil between the ends of the strip of 0.01 to 0.25 volts per turn and a current intensity of 1,000 to 10,000 amperes, preferably 5,000 amperes, to heat the coil to 750.degree. C. The coil is thereupon cooled.
    Type: Grant
    Filed: April 19, 1977
    Date of Patent: November 7, 1978
    Assignees: Aluminiumipari Tervezo es Kutato Intezet/ALUTERV-FKI, Szekesfehervari Konnyufemmu, Budapesti Muszaki Egyetem
    Inventors: Mihaly Anka, Peter Lukacs, Dezso Gallo, Jozsef Szabics, Geza Szalay