Including Reaction Roll Patents (Class 72/243.2)
  • Patent number: 8966951
    Abstract: A spraying method and device for a plant for rolling a strip, the plant having at least one rolling stand. The device includes: a pair of working rolls between which the strip runs; a plane perpendicular to the running direction of the strip; at least one pair of supporting rolls for the working rolls; two pairs of bearing rolls, each of the pairs having the rolls thereof substantially symmetrically arranged on either side of the working rolls in a plane substantially parallel to the strip so as to transfer, to the working rolls, a force for maintaining the working rolls in a predetermined position relative to the supporting roll; a support for the bearing rolls in the form of two rows including a plurality of bearing rollers mounted side by side; one or more nozzle systems for spraying at least a portion of the strip and at least a portion of the rolls.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: March 3, 2015
    Assignee: Siemens VAI Metals Technologies SAS
    Inventors: Vincent Cronier, Bernard Rossigneux
  • Patent number: 8621906
    Abstract: The object is to strictly eliminate the difference in offset of work rolls at the upper and lower and left and right of the rolling mill occurring in the kiss roll state before rolling or during rolling and eliminate the problem of warping of the flat products or meander or camber due to the thrust force acting between the work rolls and backup rolls.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: January 7, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Shigeru Ogawa, Atsushi Ishii, Daisuke Kasai
  • Patent number: 8607609
    Abstract: A rolling mill, which can use work rolls of a smaller diameter for rolling a hard material and a thin strip material, and can decrease edge drops and improve surface gloss, is provided. For this purpose, a rolling mill, which includes upper and lower work rolls (2) as a pair for rolling a strip (1), upper and lower intermediate rolls (3) as a pair for supporting the upper and lower work rolls as the pair, and upper and lower back-up rolls (4) as a pair for supporting the upper and lower intermediate rolls as the pair, is configured such that the upper and lower work rolls as the pair are supported by a plurality of supporting bearings (8a to 8f and 9a to 9f) arranged vertically zigzag on an entry side in a rolling direction, and a plurality of supporting bearings (10a to 10f and 11a to 11f) arranged vertically zigzag on an delivery side in the rolling direction, at positions outward of a rollable strip width, and the plurality of supporting bearings lap over each other vertically.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: December 17, 2013
    Assignee: Mitsubishi-Hitachi Metals Machinery, Inc.
    Inventor: Takashi Norikura
  • Patent number: 8365567
    Abstract: The object is to eliminate the difference in offset of work rolls at the upper and lower and left and right of the rolling mill occurring in the kiss roll state of the zero point adjustment work before rolling or during rolling and eliminate the problem of warping of the flat products or meander or camber due to the thrust force acting between the work rolls and backup rolls.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: February 5, 2013
    Assignee: Nippon Steel Corporation
    Inventors: Shigeru Ogawa, Atsushi Ishii, Daisuke Kasai
  • Patent number: 7251978
    Abstract: The aim of the invention is to improve known roll stands (10) which are characterized by working rolls (1,2) of various diameters, in such a way that a strip is obtained which is largely free of tensions and undulations, has a desired strip profile superelevation, and can be used approximately universally.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: August 7, 2007
    Assignee: SMS Demag AG
    Inventors: J├╝rgen Seidel, Wilfried Bald
  • Patent number: 7185522
    Abstract: A 6-high rolling mill has work rolls which have offsets, relative to the intermediate rolls, such that during operation there is a net horizontal force acting to urge the work rolls into engagement with the support rolls whereby substantially all horizontal support of the work rolls is provided by the support rolls. Support pads are located proximal the rolls' side faces, without exerting any substantial force on the work rolls during operation.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: March 6, 2007
    Assignee: T. Sendzimir, Inc.
    Inventor: John W. Turley
  • Publication number: 20040040358
    Abstract: The aim of the invention is to improve known roll stands (10) which are characterised by working rolls (1, 2) of various diameters, in such a way that a strip is obtained which is largely free of tensions and undulations, has a desired strip profile superelevation, and can be used approximately universally.
    Type: Application
    Filed: July 19, 2003
    Publication date: March 4, 2004
    Inventors: Jurgen Seidel, Wilfried Bald