Patents Assigned to Aluminium Norf GmbH
  • Patent number: 7185520
    Abstract: The invention relates to a method and a device for correcting the thickness of a metal strip during rolling comprising a roll stand with adjusting elements to regulate the thickness of the strip and at least one take-up coiler. The object to provide a method and a device to correct the thickness of a metal strip during rolling using a roll stand which ensures the production of rolled strip with a reduced thickness tolerance is solved according to method by the fact that an average strip thickness of a strip section is determined from at least one strip length measurement and the measurement of the dedicated rotation of the take-up coiler and the adjusting elements of the roll stand are controlled at least depending on the average strip thickness of the strip section. With the method according to the invention the adjusting elements can be controlled almost independently of the ambient conditions of the roll stand so that the thickness tolerances of the rolled strip can be effectively reduced.
    Type: Grant
    Filed: July 20, 2003
    Date of Patent: March 6, 2007
    Assignee: Aluminium Norf GmbH
    Inventors: Michael Pampel, Günter Pampel, Manfred Jeude
  • Patent number: 6892561
    Abstract: The invention relates to an apparatus for strip processing with at least one uncoiling station, at least one strip processing station (1) and at least one coiling station. Especially to reduce undesirable strip-edge stresses, a known apparatus for strip processing is configured such that a strip-edge stretching station (2) which stretches the edges of the strip, is provided between the uncoiling station and the coiling station.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: May 17, 2005
    Assignee: Aluminium Norf GmbH
    Inventor: Jürgen Grell
  • Patent number: 4124415
    Abstract: A process of treating metal strips using a linear electric motor with spaced apart motor elements comprises directing the metal strips into the space between the motor elements and operating the motor to produce a travelling wave and advancing the strip between the motor parts without contact thereof at a velocity greatly reduced with respect to the velocity of the linear electric motor wave so as to produce a slippage between the wave and the strip and to effect the heating of the strip as it is advanced. The apparatus includes a linear electric motor including a first motor unit spaced away from a second motor unit in the form of a linear motor or return bar so as to form a gap therebetween through which the metal strip is advanced. The apparatus includes means for feeding the strip through straightening rolls and cropping shears, S-rollers and coiling and uncoiling reels.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: November 7, 1978
    Assignees: Sundwiger Eisenhutte Maschinenfabrik Grah & Co., Aluminium Norf GmbH
    Inventors: Willi Sporenberg, Reinhold Wagner
  • Patent number: 4028072
    Abstract: Apparatus for separating hydrocarbons from flue gas and the like, including a gas scrubber, a collecting container supplying the scrubber with wash oil, and a vacuum distillation container receiving wash oil discharged from the scrubber.
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: June 7, 1977
    Assignee: Aluminium Norf GmbH
    Inventors: Walter Braun, Gunter Hoffmann