Voest-alpine Aktiengesellschaft

Vereinigte Osterreichische Eisen- Und Stahlwerke-alpine Montan

Voest-alpine Industrieanlagenbau Gmbh

Voest-alpine Industrieanlagenbau Gesellschaft M.b.h.

Voest-alpine International Corporation

Werner Scheurecker

Alois Scheinecker

Kurt Engel

Reinhard Hargassner

Horst Wiesinger

Armin Schertler

Franz Kagerhuber

Helmut Eidinger

Ronald Spannlang

Josef Wirth

Istvan Kalmar

Walter Antonitsch

Gunter Holleis

Hermann Schubert

Othmar Puhringer

Josef Guttenbrunner

Erich Felbermayer

Gerhard Muhlbauer

Johannes Cordella

Richard Kasmader

Reinhold Angerer

Lorenz Loibl

Josef A Ortner

Franz Hoppel

Friedrich Ippisch

Ernst Drab

Herbert Spanner

Manfred Leutgob

Alfred Nagl

Karl Holzer

In order, in a guide roller for continuous-casting plants, which is formed by a plurality of aligned roller portions, to avoid the creeping movements of the guide roller in the axial direction and thermally induced distortions in it, it is proposed that a roller portion adjacent on both sides of roller portions either be provided at its two ends with roller journals carrying support bearings, and these roller journals engage into recesses of the adjacent roller portions, or be provided at its two ends with recesses, and roller journals, having support bearings, of the adjacent roller portions engage into these recesses.

Guide roller

A continuous casting mold comprising an oscillating supporting structure including side walls defining a mold cavity, together with the supporting structure, is supported on a lifting table oscillated by an oscillation drive and guided in the oscillation direction by a guiding device. In order to keep the oscillating masses as small as possible and to improve the space conditions below the mold as well as to ensure easy repair, the lifting table is formed by at least two oscillating beams arranged at a distance leaving free the horizontal dimensions of the mold cavity and bridged by the supporting structure including the side walls.

Continuous casting mold

A support device (1) for foundry ladles (13, 14) for a continuous casting plant has a stationary fixed base and a rotary base (4) mounted rotatably with respect to the fixed base and rotatable by means of a rotary drive, on which rotary base at least one support arm system (11, 12) for receiving a foundry ladle (13, 14) is articulated by a parallelogram linkage system (15) with arms (17 to 20) pivotable about horizontal bearing axes (24, 25), with support arm system (11, 12) viewed in outline having a rigid U-shaped support part (26) surrounding a foundry ladle (13, 14) on which part (26) foundry ladle (13, 14) is supportable and can be raised and lowered by at least one pressurized cylinder (16) with respect to rotary base (4). In order to be able to place foundry ladles (13, 14) directly on support arm system (11, 12) even when the lengthwise direction of a continuous casting bay is not aligned parallel to the lengthwise direction of the steel works bay,

Support for foundry ladels for a continuous casting

With known strand guides, the adjustment of different strand thicknesses involves cumbersome manipulations and the susceptibility to failures of the elements allowing for such adjustment. In order to eliminate such disadvantages, the framework parts of the strand guide rest one above the other by supports and counter supports equipped with supporting surfaces provided at different high levels and with counter supporting surfaces, respectively. In addition to the support and counter support, a rotary bushing having a helicoidal supporting surface is arranged in series to each support and counter support. An abutment allocated to one of the framework parts is supported on the rotary bushing.

Strand guide arrangement provided at a continuous casting plant

A supporting arrangement for casting ladles includes a stationarily mounted permanent base and a rotary base rotatably mounted relative to the permanent base. To each rotary base, a supporting bracket system is hinged via a linkage parallelogram system including pivotable guiding rods. Each supporting bracket system is liftable and lowerableby a pressure medium cylinder. In order to reduce the weight of the supporting arrangement and to facilitate any repair work to be done at the pressure medium cylinder, the supporting bracket system is composed of two independent supporting brackets, each supporting bracket independently being hinged to a lower and an upper guiding rod of the linkage parallelogram system. The upper guiding rods of the linkage parallelogram system, on their ends facing away from the rotary base, are united by a cross beam to a rigid unit U-shaped in ground plan. The cross beam is supported on the pressure medium cylinder by a swivel arranged in alignment with the hinges of the upper guiding rods, which hinges are arranged on the ends facing away from the rotary base.

Supporting arrangement for casting ladles provided in a continuous

A method for adjusting the casting width of a continuous metal, in particular steel, casting mold in which two displaceable end walls are clamped between two large side walls with a predetermined clamping force. Prior to making the adjustment the clamping force acting on the end walls is released and one large side wall is displaced away from the abutting end walls to form a gap between them so that the end walls can be moved to the desired position. They are then clamped again between the two side walls. To attain an optimum gap width between the end and side walls by taking the actual mold dimensions at the time of adjustment into consideration, the thermal expansion of the end walls in a direction parallel to the axis of the tie rods is measured during casting, or at least during the start-up period of the continuous casting process until it has reached its equilibrium state. The adjustment is the made by adding the desired, optimum gap width to the actual, measured expansion of the end walls.

Method and apparatus for adjusting a mold during casting in a continuous

A support machine is provided for a ladle in a continuous casting. A rotatable column is positioned on a bearing on a foundation base. A ladle support arm is pivoted around a horizontal axis, includes a yoke surrounding the rotatable column and has a U-shaped planar projection, and two lever legs running about in parallel and each extending an end of the yoke. A ladle support is disposed near an end of each lever leg. A support provision for each lever leg is disposed between the ladle support and the yoke for supporting the lever leg on the side of the column disposed toward the corresponding ladle. A position adjustment provision is attached to the column, is disposed at the side of the column opposite to the corresponding support provisions and engages the yoke. A ladle support is disposed near the free end of the support arm and can be pivoted around a horizontal axis provided by a hinge mechanism. An inclination measurement sensor is disposed at the ladle support of the ladle support arm. A control provision is connected to the inclination measurement sensor and a setting provision for the ladle support fed from the sensor maintains the ladle support in a desired position.

Ladle support machine

A checking and aligning stand for measuring and aligning structure sections of the strand guide of a continuous casting plant includes measuring surfaces to determine the mounting position of the structure section. In order to be able to effect a quick check of the mounting position of curved structure sections of a bow-type continuous casting plant without impeding the casting operation during this adjustment work, at least two pairs of measuring surfaces arranged at an angle to each other, preferably at 90.degree., to determine the roller-way coordinates relative to the position-defining supporting surfaces of the structure section are provided on the checking stand.

Checking and aligning stand to be used in a continuous casting plant

A continuous casting plant includes supporting elements following a through-type mould and including the strand guideways. The elements are arranged within a cooling chamber and are fastened to a supporting structure so as to be adjustable relative to the through-type mould and relative to one another in the direction transversely to the longitudinal axis of the strand guideways. In order to be able to carry out an aligned adjustment between the mould and the supporting elements in a simple manner, with little work to carry out and even with the plant in operation, wherein the entry of the cooling chamber is avoided, at least one of the supporting elements is coupled with an adjustment means. This adjustment means is fastened to a supporting structure, directed outwardly from the cooling chamber and actuatable from outside of the cooling chamber.

Continuous casting plant

In a supporting and guiding arc for cast strands including rollerways supporting the strand on opposite sides, the rollers are mounted on one-piece arcuate longitudinal carriers extending over the total length of the guiding arc. Transverse carriers are arranged in pairs opposite each other along the arcuate longitudinal carriers at a distance from one another, engaging the arcuate longitudinal carriers from behind and being connected by drawing anchors. In order to combine the advantages of guiding arcs assembled of segments arranged in series with the advantages of guiding arcs equipped with continuous arcuate longitudinal carriers, each rollerway has only two arcuate longitudinal carriers. A plurality of supporting segments are inserted between the arcuate longitudinal carriers and are detachably fastened to the same. A plurality of rollers allocated to a rollerway are journaled on each supporting segment. After detachment of a supporting segment from the arcuate longitudinal carriers, the supporting segment is removable from the supporting and guiding arc, together with its rollers.

Supporting and guiding arc for a cast strand

In a method of introducing a starter bar head of a starter bar into the open ends mould of a horizontal continuous casting plant, the mould is removed from the continuous casting plant and placed vertical. Then the starter bar head separated from the starter bar is threaded into the mould and fixed in its position relative thereto. The mould, together with the starter bar head fixed to it, is installed into the plant. Subsequently, the starter bar head is coupled with the starter bar lying in the strand guide and then the fixation of the starter bar head is undone. In an arrangement for carrying out this method, the starter bar head has a larger longitudinal extension than the secondary cooling apparatus. One end of it projects into the mould cavity and the other end is connectable with the starter bar outside of the secondary cooling apparatus. A fixing element for the starter bar head introduced into the mould is provided.

Method to be carried out in a horizontal continuous casting plant for

A bow-type continuous casting plant includes a strand bending arrangement arranged below the mould, and a circular-arc guide for the strand following thereupon. The circular-arc guide has oppositely arranged supporting roller ways, and the bending arrangement includes two oppositely arranged bow-structure parts carrying bending and supporting rollers each, and being supported on each other. The distance of the supporting-roller ways of the circular-arc guide is variable in accordance with the strand cross section to be adjusted. One of the bow-structure parts of the bending arrangement is provided with exchangeable roller carriers detachably fastened to it and adapted to different strand cross-sectional formats with their dimensions.

Bow-type continuous casting plant for strands

In a strand guiding stand including oppositely arranged stand parts connected by drawing anchors and on which strand guiding rollers are journaled, at least one of the stand parts is displaceable, and fixable, by a displacement device along the drawing anchors. The displacement device includes at least one bushing on each drawing anchor, with a helical supporting surface. Each bushing leans against a fixed abutment of the drawing anchor and the displaceable stand part is supported on the bushing. In order to prevent a change in the distance of the oppositely arranged strand guiding rollers and to be able to adjust the distance automatically merely by rotating the bushings, the helical supporting surface of each bushing has an angle of inclination that is larger than the pertaining angle of friction. The bushings are motionally coupled and synchronously turnable by an adjustment drive fixable in different positions, and are provided only on the ends of the drawing anchors that penetrate the displaceable stand part. The displaceable stand part is pressable against the bushings by a clamping device.

Strand guiding stand to be used in a continuous casting plant

In a supporting and guiding structure for a continuous casting plant, roller ways supporting the strand on two opposite sides are provided, one of the two roller ways being arranged on a first supporting framework and the other roller way being arranged on the second supporting framework which is braceable relative to the first supporting framework by drawing anchors and is connectable with the first supporting framework and detachable therefrom. In order to be able to effect the connection and release by parts that are easy to handle, a bayonet connection is provided as the connection between supporting framework and drawing anchors. The bayonet connection includes a disc having at least one recess and arranged on the supporting framework. A drawing-anchor head including a lateral neck that corresponds to this recess is insertable into the recess, and the drawing-anchor head or the disc is rotatable into a fastening position axially fixing the drawing anchor.

Arrangement at a supporting and guiding structure to be used in a

A strand guide for an arcuate continuous casting plant has at least one arcuate, horizontally displaceable supporting and guiding structure. In order to be able to remove and install the supporting and guiding structure in a simple manner, on ensuring a good accessibility and not restricting the space on the casting platform, the supporting and guiding structure is mounted on at least one intermediate trestle. The intermediate trestle is adjustable in the arc plane and is supported on at least one supporting trestle which is adjustable transversely to the arc plane.

Growing community of inventors

Linz, Austria

Werner Scheurecker