Primetals Technologies Austria Gmbh

Juergen Schiefer

Friedrich Moser

Klaus Frauenhuber

Walter Grabner

Pascal Ostheimer

Bernd Linzer

Michael Zahedi

Heinz Fürst

Simon Grosseiber

Franz Hermann Glaser

Lukas Preuler

Slaven Ilic

Christian Strasser

Johann Stadlmair

Heinz Fuerst

The invention relates to a finishing train for finish rolling hot strip. It is the object of the invention to modify an existing finishing train in such a way that the surface quality of the hot strip produced is improved without, however, significantly increasing the use of energy during production. This is intended to enable the thin hot strip produced to be used even for applications with high demands on surface quality. This object is achieved by a cleaning nozzle which cleans the upper side of the exit table, thus ensuring that scale and/or rolling dust are/is removed from the exit table.

Reduction of surface defects during finish rolling of hot strip

A device for laterally guiding a metal strip () running over a loop lifter () between two roll stands () of a finishing train. The device includes at least one main member module () extending in a direction between the roll stands. The module has a guiding plane (), and also supports a number of wear members (), each with a wear surface (). Those wear members can be turned to a number of rotational positions. At least two wear members () are respectively arranged between one of the roll stands () and the loop lifter, wherein, seen in the direction of the loop lifter (), the surface area of the wear surface () of adjacent wear member bodies () increases. During the operation of the device, at least one of the wear members is rotated while the metal strip () is running to expose another area of the wear surface to the side of the strip.

Device for guiding metal strips with wear bodies in a finishing train

During stabilization of a metal band () on a roller path (), the band () is to be only minimally cooled via the stabilisation. A device for that includes multiple protective runners (), each oriented in the conveyor direction (R), for guiding the band (), wherein the protective runners () are arranged above the roller path () and the protective runners () are at a distance from one another in a width direction (B) of the band (). Multiple rows () of nozzles are arranged in the conveyor direction (R) or in the width direction (B) of the band. Each row () of nozzles includes multiple nozzles (). The nozzles () are set back in relation to an underside of the protective runners (), such that an arched band () cannot come into contact with the nozzles (). A compressed air supply () and a network of tubes or pipelines () supply the nozzles () with compressed air, wherein the nozzles () apply compressed air to the upper side of the band () in order to stabilize the movement of the band () on the roller path ().

Method and device for stabilizing a movement of a rolled metal band on a roller table

A device for lateral guidance () of a metal strip () moving on a metal belt conveying device, including at least one base body module () includes an essentially vertical guiding plane (), at least one wear body () having a wear surface () can be rotated into several defined rotational positions in a controlled manner. The wear surface () is substantially planar, and in all of its defined rotational positions, is parallel to the guiding plane (). Further, a method for lateral guidance of metal strips () moving on a metal belt conveying device includes, after a first metal strip has passed through the metal belt conveying device, and prior to a second metal strip entering the metal belt conveying device, the wear body () is rotated from a first to a second defined rotational position in a controlled manner, wherein in all defined rotational positions, the wear surface () is parallel to the guiding plane ().

Device and method for guiding metal strips having wear bodies

A driver roller () having a rolling body () and at least one axle shaft journal (). The at least one axle shaft journal () is fixed to the rolling body () indirectly via at least one support element (), which is fixed to the rolling body (), by means of removable connecting means. The at least one axle shaft journal () is arranged such that the longitudinal axis of the journal is coaxial to the longitudinal axis of the rolling body (), and the axle shaft journal is a separate component. The support element () has the shape of a ring or a disk with a groove () in an end wall of the ring- or disk-shaped support element (). The support element () has a flange () on which the axle shaft journal () is flange-mounted. Such a driver roller can be easily assembled from modules, thereby simplifying maintenance and storage.

Driver roller of a winding device of a rolling mill, and method for producing same

A reel for winding metal strip, in particular rolled hot strip, having a mandrel shaft (), which has a first shaft end piece (), which is rotably mounted by means of at least one bearing () provided in the machine frame () of the reel, a clamping device () arranged between the at least one bearing () and the mandrel shaft (), such that, in a clamped operating state, a frictional connection can be produced between the at least one bearing () and the mandrel shaft ().

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Allhaming, Austria

Juergen Schiefer