Voest-alpine Aktiengesellschaft

Vereinigte Osterreichische Eisen- Und Stahlwerke-alpine Montan

Voest-alpine International Corporation

Gunter Holleis

Reinhard Hargassner

Horst Wiesinger

Werner Scheurecker

Franz Kagerhuber

Karl Schwaha

Othmar Kriegner

Fritz Granitz

Heinrich Thone

Franz Lang

Walter Antonitsch

Gottfried Deibl

The jet exiting from jet nozzles is guided along a guide surface for a jet nozzle with one or more nozzle channels disposed next to each other and in parallel, where the hydraulic diameter of the nozzle channels is from about 1.5 to 4 millimeters. In order to limit sharply and without spray the jet exiting out of the jet nozzle crosswise to its axis on the sides and in order to maintain it of uniform width over a large part of its length, the guide surface is of concave shape, the nozzle channels merge without step into the cylindrical jacket surface, the axes of the nozzle channels and the guide surface include an angle of from 0.5 and 2.5 degrees, and the guide surface is provided with a tear-off provision with a cutting edge.

Jet nozzle

A plate mould for continuous casting includes a carrying frame and broad-side walls supported therein and delimiting the mould cavity. Between the broad-side walls, end walls are arranged. The broad-side walls are adjustable normal to the axis of the mould cavity by an adjustment device and clampable relative to each other by a clamping device. In order to enable a perfect movement of the broad-side walls in the direction normal to the axis of the mould cavity, which is simple to maintain and adjust by the maintenance personnel, and to provide an easy installation and removal of the mould insert, each broad-side wall is clampable in the vertical direction by at least one clamp strap, against a holding plate of the carrying frame supporting the broad-side wall. The clamp strap is supported on the broad-side wall and on the carrying frame and clampable against the carrying frame in the manner of a bending carrier by a tensioning device that is detachable from the upper side of the mould.

Plate mould for continuous casting

A plate mould of a continuous casting plant includes a carrying frame mounted on a reciprocating mould lifting table, and walls supported on the carrying frame and delimiting the mould cavity. At least one of the side walls is displaceable transversely to the mould axis by an adjustment drive to change the format of the strand cross section. In order to reduce the expenditures in terms of machinery and investments for a continuous casting plant, the adjustment drive is arranged on a stationary supporting structure neighboring the lifting table, or on the lifting table, and is in connection with the adjustable side wall via a coupling.

Plate mould of a 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

A guiding stand to be used in a continuous casting plant includes rollers supporting the strand at opposite sides and arranged in a supporting framework. The rollers, at least at one side of the strand, are mounted in guide rods pivotably arranged in the supporting framework for adjustment to various strand thicknesses. The guide rods are pivotable by an adjustment device, and the guide rods of neighboring rollers are each connected with one another by coupling rods in the manner of a four-bar linkage.

Guiding stand to be used in a continuous casting plant

A continuous casting mould suitable for adjustment to various strand cross sectional formats, has at least one transversely divided side wall whose parts are displaceable and fixable relative to the opposite side wall by adjustment drives and are articulately connected with one another, the axis(es) of the connecting member(s) extending in the horizontal direction over the width of the side wall; a method of changing the cross sectional format of a strand.

Continuous casting mould suitable for adjustment to various cross

An arrangement for adjusting and securing a bottomless mould to a mould lifting table in a continuous casting plant for strands with supporting and guiding paths arranged to follow the mould to support the strand at opposite sides thereof, has centering apparatus on the mould lifting table and on the mould. Part of the centering apparatus is vertically displaceable relative to the supporting and guiding paths. The mould is arranged with lateral play relative to the mould lifting table and bracing devices are provided for fixing the mould on the mould lifting table.

Growing community of inventors

Linz, Austria

Gunter Holleis