Patents Assigned to Krupp-Hoesch-Stahl AG
  • Flatness measurement system for metal strip
    Patent number: 6286349
    Abstract: The invention relates to a flatness measurement and control system for metal strip, which makes it possible to obtain improved strip or coil quality by a simple and effective measurement of departures from flatness and to control the finishing parameters through the evaluation of a line pattern on the strip surface or on the end face of a coil as it is coiled.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: September 11, 2001
    Assignees: Betriebsforschungsinstitut VDEh-Institut fur angewandte Forschung GmbH, Gesellschaft fur Optische Messtechnik GmbH, Krupp-Hoesch-Stahl AG
    Inventors: Ulrich Müller, Gustav Peuker, Detlef Sonnenschein, Detlef Winter, Michael Degner, Gerd Thiemann
  • Process for phosphating steel strip galvanized on one side
    Patent number: 5516372
    Abstract: A process for phosphating a galvanized surface of a steel strip electrolytically galvanized on one side by contacting the galvanized surface of the steel strip with a phosphating solution containing 1.0 to 6 g/l zinc, 0.5 to 5.0 g/l nickel and 14 to 25 g/l phosphate at a temperature of 40.degree. to 70.degree. C. for from 2 to 20 seconds. The ungalvanized surface remains metal bright.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: May 14, 1996
    Assignees: Henkel Kommanditgesellschaft auf Aktien, Krupp Hoesch Stahl AG
    Inventors: Joerg Riesop, Raschad Mady, Dieter Geruhn, Frank Panter, Franz Ricke, Hubertus Peters, Juergen Verheien, Manfred Wessel