Sms Demag Ag

Sms Siemag Aktiengesellschaft

Armin Klapdor

Hans-Peter Richter

Wolfgang Denker

Andreas Berendes

Ralf Ohrndorf

A rolling mill () for rolling a metal workpiece () that is provided with at least one roll stand () as well as with a conveyor () for the material to be rolled () extending on both sides of the roll stand () for a predetermined length (L) is based on the object that in the area of the longitudinal extent of the conveyor () at least one holder () for a coil () of the metal workpiece () is provided that can be positioned in a first position (A) in which it does not disturb the transport of the metal workpiece () along the conveyor () and that can be positioned in a second position (B) in which the coil () is positioned close to the roll stand () on the conveyor () for unwinding or winding up the coil ().

Rolling mill for rolling metallic material

The invention relates to a method of strip blow-off at an exit of rolling mills for producing a spotless and clean rolled strip, according to which the strip () is blown off with at least one nozzle () arranged above the upper side () of the strip, and a rolling oil/emulsion stuck on the strip () is aspirated from their edges (&#x2033;) by a suction device (), and wherein on the upper side () and a lower side () of the strip (), a chamber () in which overpressure prevails, is formed and to a corresponding device.

Method of and apparatus for strip blow-off

A device for changing pairs of work rolls and/or pairs of backup rolls of roll stands, wherein the rolls are each supported in chocks and are movable out or in by a lower back up roll supported on a track and wheels. The work rolls on the drive side of the roll stand can be coupled to a hydraulic piston-cylinder actuator that is dimensioned in is stroke length for the removal or installation distance and can be uncoupled when it has been withdrawn by the required distance. A roll changing frame can be coupled to the actuator and, when the upper backup roll and the roll changing frame are supported on the lower backup roll, the pair of backup rolls can be moved out or back in. The actuator is coupled to a pusher with connecting arms aligned with ends of the rolls. The actuator is arranged on the drive side of the roll stand and is coupled to the pusher through a piston rod.

Method and device for changing pairs of working rolls and/or pairs of back-up rolls on roll stands

The preferred quality requirements postulated by producers for the product cold-rolled strip include, among good flatness and optimum thickness tolerances, also dryness of the strip in the outlet of strip rolling mills. Already existing devices that are disposed in the outlet of roll stands comprise stationarily installed and mobile partitions, a roll barrel and a roll strip venting device and a vapor escape. The aim of the invention is improve the aforementioned device by disposing above the rolled strip () a strip deflector () with an integrated fan-operated strip venting device () by means of a low-pressure nozzle () and an upper roll barrel gap seal () in the form of a slotted nozzle () and below the rolled strip () an extraction device () with integrated lower strip deflector ().

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Kirchhundem, Germany

Armin Klapdor