Primetals Technologies Austria Gmbh

Siemens Vai Metals Technologies Gmbh

Voest-alpine Industrieanlagenbau Gmbh & Co.

Siemens Vai Metals Technologies Gmbh & Co.

Guoxin Shan

Franz Wimmer

Heinrich Thoene

Johann Poeppl

Josef Watzinger

Stefan Lechner

Josef Guttenbrunner

Helmut Ebner

Marinko Lekic-Ninic

Günther Deibl

Jens Kluge

Susanne Tanzer

Paul Pennerstorfer

Christian Enzinger

Josef Lanschuetzer

Johann Penn

Karl Trnka

Franz Ramstorfer

Hans-Peter Kogler

Susanne Hahn

Christian Brugger

Michael Starrermair

Martin Hirschmanner

Guenter Ziegler

Christian Schorn

Karl Holzer

Ernst Schwarz

Helmut Resch

Günter Leitner

Günther Wersching

Karl Tmka

Suzanne Tanzer

A method for semi-continuous casting of a strand of steel in a strand casting machine and a strand casting machine that carries out the method, the method includes pouring liquid steel into a mold while closing off the mold by a bar to form a fully solidified strand start area followed by a partially solidified strand; extracting the partially solidified strand from the mold; supporting and guiding the partially solidified strand in the strand guide; at the end of the casting, ending the pouring of liquid steel into the mold and forming a strand end; extracting the strand end from the mold; ending the extraction of the strand end; ending the secondary cooling; providing controlled or regulated cooling of the partially solidified strand until full solidification of the strand; and discharging the strand from the strand casting machine.

Semi-continuous casting of a steel strip

A cooled strand guide roller () mounted at more than one location for guiding a metal strand (S) in a continuous casting machine, and a method for cooling a strand guide roller () mounted at more than one location. An internally cooled strand guide roller () is mounted at more than one location. The height of the strand guide roller () is intended to be adjustable easily and quickly. The strand guide roller () has a collecting bar () for supplying the strand guide roller () with cooling water. The collecting bar () includes a plurality of brackets (). Between two successive brackets (), there is at least one coolant pipe () for fluidically connecting the brackets (). An outer bracket () has at least one first connection () for internal cooling of the cooled strand guide roller () and at least one second connection () for cooling the bearing blocks (). The first connection () is fluidically connected to the ducts () of the individual rollers () and the second connection () is fluidically connected to the bearing blocks () via the brackets ().

Cooled strand guide roller mounted at more than one location

A roll () for supporting and conveying hot material, including a roll element that has a roll jacket () made of a basic material and a wear coat which is applied to the basic material by means of a surface welding process () using a welding additive which surrounds the surface of the roll jacket. In order to increase the service life of the wear coat, improve the resistance to wear, and reduce the cost for producing the welded-on surface. The basic material of the roll jacket () is steel and contains up to 0.45 percent of C. The welded-on surface () is designed as a single-layer weld, and the wear coat contains 12.5 to 14.0 percent of Cr at least in an external zone that surrounds the surface of the roll jacket. Also disclosed are a method for producing the roll (), a method for repairing a used roll (), a welding additive and a welding rod for producing the welded-on surface.

Process for producing a roll for supporting and conveying hot material, process for repairing a worn roll

In the case of a strand guiding roller with at least one roller shell and with at least two supporting shafts, two supporting shafts being respectively connected in a rotationally fixed manner to a roller shell and each supporting shaft being rotatably supported in a supporting bearing, to achieve a type of construction that is simple and can withstand the high thermal and mechanical loading that occurs, it is proposed that the roller shell is connected in a rotationally fixed manner to the supporting shafts carrying it on both sides by shrink-fit connections or by press-fit connections.

Strand guiding roller

An internally cooled strand-guiding roll for a continuous casting installation, having a central rotatable shaft and at least one roll shell supported fixed against rotation on the shaft. To make the strand-guiding roll better able to withstand the mechanical and thermal stresses, to ensure that it is suitable for large strand widths and to enable maintenance work to be carried out, the roll shell has coolant passages passing through it, and the coolant passages are arranged in the roll shell at a constant distance from the cylindrical roll shell outer surface of the roll shell and preferably at the area between the shaft and the roll shell. It is preferable for at least one water guide ring to be arranged between the roll shell and the central shaft.

Internally cooled billet guiding roller

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Linz, Austria

Guoxin Shan