Patents Examined by Robert L. Spruil
  • Patent number: 4823585
    Abstract: A hot rolling method using a hot finishing mill including a pair of work rolls each having a taper ground end at one end of its barrel and arranged one above the other with the taper ground ends being on opposite sides so as to locate both edges of a plate-like material to be rolled in respective zones of the taper ground ends. Work rolls are cyclically shifted in their axial direction within a range so as not to permit the both edges of the material to come out of the taper ground ends of the work rolls, thereby preventing edge built-ups of the material and simultaneously effecting crown-controlling of the rolled material. The work rolls are finely shifted and simultaneously a bending action is applied to the work rolls in a manner to eliminate a bending action acting upon the work rolls caused by the material being rolled by the work rolls.
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: April 25, 1989
    Assignee: Kawasaki Steel Corporation
    Inventors: Itaru Hishinuma, Akio Adachi, Ko Toyoshima