Patents Represented by Attorney Frost Bown Todd LLC
  • Patent number: 7377986
    Abstract: The present invention relates to a method for producing a non-oriented electrical steel with improved magnetic properties and improved resistance to ridging, brittleness, nozzle clogging and magnetic aging. The chromium bearing steel is produced from a steel melt which is cast as a thin slab or conventional slab, cooled, hot rolled and/or cold rolled into a finished strip. The finished strip is further subjected to at least one annealing treatment wherein the magnetic properties are developed, making the steel sheet of the present invention suitable for use in electrical machinery such as motors or transformers.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: May 27, 2008
    Assignee: AK Steel Properties, Inc.
    Inventors: Jerry W. Schoen, Robert J. Comstock, Jr.