Sms Schloemann-siemag Aktiengesellschaft

Hubert Muller

Karl Keller

Hugo Feldmann

Ulrich Svejkovsky

Albert Hauck

Konrad Hamraths

Michael Minnerop

Hans-Jurgen Reismann

Claus G Schlanzke

Johann Grotepass

Rudiger Grimmel

Paul Josef Mauk

Klaus Hoffmann

Paul Kreisel

Gunter Kirchmann

A method of operating a roll stand arrangement including one or more edging/roughing stands followed by a compact rolling group arranged transversely offset relative to the edging/roughing stands and connected to the edging/roughing stands through connecting roller conveyors and a transverse conveying unit. The compact rolling group is composed of first and second universal stands or two-high stands and an intermediate edging stand arranged between the first and second stands. In accordance with a predetermined cycle, preliminary sections arriving from a continuous casting plant are supplied directly without intermediate storage to the roll stand arrangement and are finish rolled successively in the compact rolling group into profiled rolled strands and are supplied, before or while the next following preliminary section enters the compact rolling group, to a cooling bed arranged laterally of the rolling line. When rolling sections whose finish rolling time is longer than the cycle predetermined by the continuous casting plant, a first length portion of the rolled strand which has already emerged from the compact rolling group is severed from the rolled strand and is supplied to the cooling bed.

Method of operating a roll stand arrangement

A device for changing the vertical position of the vertical rolls in universal roll stands for rolling girders of different heights, wherein the vertical cross section of the housing of the bearing chock is constructed asymmetrically and the vertical distances of the planes of the two slideways of the bearing chock from the horizontal longitudinal center plane of the vertical roll are dimensioned differently. The increase of the distance between the roller table and the center of the vertical roll can also be achieved by shims which can be placed and fastened on horizontal guide surfaces of the bearing chocks of the vertical rolls of the universal roll stand.

Device for changing the vertical position of the vertical rolls in

A fine steel or wire train with a multiple-stand roughing train, a multiple-stand intermediate train and a finishing block composed of six or eight or ten roll stands with a common drive, wherein at least the two last roll stands of the finishing block are each provided with an individual drive unit and the drive shafts of the last two roll stands which can be uncoupled intersect the principal drive shafts of the coupled stands.

Fine steel or wire train with roughing train, intermediate train and

A steel bar is made by first producing a continuously cast forgeable steel strand of generally square cross section with flat beveled corners at a temperature above a transformation temperature. This strand is then cut into billets which are passed through a succession of pairs of rollers and compressed with the rollers with a pressure sufficient to compact a core of the billets without substantially lengthening the billets.

Method of making forged steel bar

A method of operating a roll stand arrangement composed of one or more roughing stands and a compact rolling group arranged downstream of the roughing stands and transversely offset relative to the roughing stands. The compact rolling group is connected to the roughing stands through roller conveyors and a transverse conveying unit. The compact rolling group is composed of a first and a second universal stand or two-high stand and an intermediate upsetting stand between the first and second stands. Preliminary sections arriving from a continuous casting plant are supplied directly or after intermediate storage to the roll stand arrangement. The rolling stock strand which has been rolled in the roughing stands is supplied optionally from a first entry side or a second entry side into the compact rolling group in dependence on the number of passes required by the respective rolling program.

A pair of roll support shafts which are supported by bearings provided at both ends of the roll support shafts, wherein, between the bearings, toothed drums are mounted on the roll support shafts or the circumference of the roll support shafts is provided with toothings. Outside of the bearings, roll disks can be mounted on the ends of the roll support shafts, wherein one of the toothed drums meshes with a drive pinion mounted on a parallel drive shaft and the other toothed drum meshes with a loosely mounted intermediate pinion, wherein the drive and the intermediate pinion also mesh with each other. The roll support shafts are each supported in a free end of a single-armed tumbler lever which is swingable about the longitudinal axis of the drive pinion or the intermediate pinion, wherein the tumbler levers are supported relative to the roll stand by means of adjustable and securable rigid or elastic support members and the free ends are supported relative to each other through elastic members.

Roll stand with a pair of roll support shafts with bearings at both ends

A roll mill and method for rolling wires or rolling stock having a round cross-section and made from high grade steel or other alloyed steel in a high production-light section/wire mill is disclosed. By the invention, the tightest wire tolerances to roll the rolling stock in a temper roll block of the roll mill with a distinctly lower pass reduction compared to the reduction passes performed in the finishing roll block of the wire mill is achieved. The wire mill comprises a break-down train comprising respectively several roll stands or roll units, at least one intermediate train with adjoining or subsequent finishing train, wherein the finishing train is, in particular, configured as the finishing roll block. A temper roll block, comprising at least two stands is disposed downstream of the finishing roll block, and a cooling path 13 and/or a temperature compensation device 14 is, if needed, disposed between the finishing roll block and the temper roll block. In order to be able to utilize the temper roll block as a precision roll block, the temper roll block is provided with a shifting gear box for shifting same to a reroll or precision rolling operation.

Rolling mill and method for precision rolling wire or rolling stock

A horizontal/vertical roll stand with a pair of work rolls which can be exchangeably mounted with chocks and adjusting spindles in the stand includes a housing which is formed by four posts which extend from the corners of a common base plate, wherein the posts have an essentially rectangular cross-section. A cube-shaped receiving space which is open toward the top and at the sides for a cassette-type roll mounting unit is defined by the base plate and the four posts. During the exchange of the rolls, the roll mounting unit can be pulled out as a structural unit from the receiving space of the stand. Pairs of the posts form guides therebetween. A total of four support plates with a center support member each for four adjusting spindles are releasably fastened to the guides. The adjusting spindles have adjusting nuts on right/left thread portions, wherein pairs of adjusting nuts engage with cylindrically shaped projections into chocks of the rolls and adjust the rolls.

Horizontal/vertical roll stand

A combined, continuously operating high-speed light-section and wire mill composed predominantly of so-called cantilever stands or CL stands with overhung-mounted collars. In the roughing train and in the intermediate train and/or in the finishing train, some rolling mill stands with a modular unti with double-mounted collars are arranged. A CL modular unit of the CL stands with overhung-mounted collars can be exchanged as required against a modular unit with double-mounted collars. The second bearing of the modular unit is arranged in a box stirrup which can be coupled to the gear box of the CL stand. The collar can be assembled and disassembled with an automatically actuated, preferably hydraulically acting quick fixing device which includes piston-cylinder units for clamping and releasing the collar on the shaft in axial and in radial direction. The modular unit is a roll box of sandwich construction with box plates which can be separated from each other.

Combined light-section mill and wire mill

An operating method and a rolling mill train for continually rolling a profiled billet to a predetermined finished cross-sectional shape of accurate dimensions by means of successively arranged rolling mill stands with pairs of rolls, wherein the axes of the pairs of rolls extend perpendicularly to each other. The pairs of rolls have oppositely located pass screws which determine the cross-sectional shape of the rolled steel section billet which travels through the pairs of rolls. The billet is sized in one or more roughing stands locally in a circumferential portion of the cross-section thereof which, after leaving the last roughing stand, runs in the subsequent main stand into the region of a contact line of the two rolls of the main stand, such that the entire material of the billet running into the main stand completely fills out the pass of the main stand without significantly deforming the region of the contact line of the two rolls of the main stand.

Operating method and rolling mill train for continuously rolling a

A pair of roll grooves defining a rolling passage for the bar stock in respective rolls having abutting or bearing portions which are undercut to increase elasticity and are separated from the grooves by recesses. The force with which the rolls are pressed against one another far exceeds the rolling force.

Growing community of inventors

Grevenbroich, Germany

Hubert Muller