Voest-alpine Industrieanlagenbau Gmbh & Co.

Voestalpine Stahl Gmbh

Siemens Vai Metals Technologies Gmbh & Co.

Voestalpine Stalh Gmbh

Siemens Vai Metals Technologies Gmbh

Voestalpine Metal Forming Gmbh

Markus Brummayer

Gerald Hohenbichler

Gerald Eckerstorfer

Josef Watzinger

Andreas Sommer

Andreas Flick

Reiner Kelsch

Philipp Gittler

Kurt Etzelsdorfer

Josef Stallberger

Rainer Fuchs

Viorel-Sergiu Ilie

Thomas Wittner

Jakob Six

Andreas Schweighofer

Raimund Wincor

Karl Moerwald

Benedikt Tutewohl

Andreas Schweichofer

The present invention relates to an apparatus for tempering hot articles, in particular an apparatus for homogeneous, contactless tempering of primarily non-endless surfaces that are to be tempered; the tempering apparatus has at least one tempering blade or a tempering cylinder; the tempering blade or tempering cylinder is embodied as hollow and has a tempering blade nozzle edge or a plurality of tempering cylinders arranged in a row; in the nozzle edge at least one nozzle is provided, which is aimed at an article to be tempered; and at least seven tempering blades are arranged in such a way that the flow pattern on the surface to be tempered forms a honeycomb-like structure; and to a method therefor.

Method for the homogeneous non-contact temperature control of non-endless surfaces which are to be temperature-controlled, and device therefor

A tundish, in particular a tundish for continuous steel casting for placement between a steel casting ladle and a continuous casting mold, with an inlet region and an outlet region, wherein in the inlet region, molten steel can be supplied in particular through a ladle shroud and in the outlet region, the molten steel can be drained from the tundish in particular by means of a plug and an outlet opening; in the vicinity of the inlet region in the tundish, a threshold or ramp is provided, which forms a region of the tundish bottom into a cup or tundish; the threshold or ramp has at least one channel at the side, which locally reduces the height of the threshold or ramp or breaks through the threshold.

Tundish for a continuous casting plant

Processes for continuous production of a thin metal strip, in particular a steel hot strip, directly from a metal melt and with a strip cast thickness of &#x3c;10 mm by the roll-casting process. The cast metal strip is fed for in-line thickness reduction, and then to a storage device. To achieve a high-quality, hot-rolled metal strip with flatness tolerances comparable to those which can currently be achieved in the production of hot-rolled metal strip from continuous-cast thin slabs or slabs, at cast thicknesses of between 40 and 300 mm, in a continuous production process starting directly from metal melt. With the low strip cast thickness, a flatness measurement is performed on the moving metal strip, and the measurement results of this flatness measurement are used to influence the flatness of the metal strip in a targeted way.

Process and apparatus for the continuous production of a thin metal strip

The invention relates to a sequence casting process for producing a high-purity cast metal strand from a metal melt, the metal melt being fed in controlled fashion from a metal vessel to a tundish and being discharged in controlled fashion from this tundish into a continuous-casting mold, and the supply of the metal melt into the continuous-casting mold being continued without interruption. To allow a high-quality metal strand to be cast even during the change of melt vessel in this process, with the restart phase being kept as short as possible, it is proposed that during a period of time from the resumption of the supply of metal melt into the tundish until the point at which a quasi-steady operating bath level in the tundish is reached, the inflow rate into the tundish is greater than the outflow rate out of the tundish, and for 70% to 100% of this period the inflow rate into the tundish is less than or equal to double the outflow rate out of the tundish.

Sequence casting process for producing a high-purity cast metal strand

The invention relates to a method for producing a cast metal strip using a twin roll casting installation comprising two casting rolls and two lateral plates that together define a molten metal chamber and a casting gap. Molten metal is introduced in to the molten metal chamber and forms the molten metal chamber a molten metal bath with a bath surface that is open to the top. A cast metal strip is conveyed from the molten metal chamber and through the casting gap. A delimiting surface area for collecting particles that are foreign to the molten metal is produced on the surface of the bath under the effect of at least one gas jet. The aim of the invention is to substantially avoid the introduction of particles that are foreign to the molten metal into the surface or into the near-surface zone of the cast strip. For this purpose, the at least one gas jet is directed together with the casting roll onto the bath surface at a distance of the gas jet axis to the contact line of the bath surface.

Process for producing a cast metal strip, and two-roll casting device used for this process

To achieve the highest possible separation rate for foreign particles in a tundish combined, at the same time, with a minimized level of inclusions, the refractory-lined interior space of the tundish, as a function of an operating bath level (h), satisfies the condition that a dimensionless ratio (&#x3ba;) of the refractory-lined surface area (A) to the filling volume (V) which is delimited by this refractory-lined surface area and the bath-level-dependent exposed surface area (A) and results from the relationship be between 3.83 and 4.39.

Tundish and method for production of a metal strip of high purity

A process for producing a continuous-casting plant for producing these products and a submerged nozzle therefor and a continuously cast primary product, in particular broad slabs, having a thickness of the primary product D&#x3e;100 mm and a width of the primary product B=2700 mm to 3500 mm at a casting rate v&#x3c;2 m/min in a continuous-casting plant. To achieve uniform solidification conditions for the cast strand and uniform melting and distribution conditions for the casting powder, molten material leaves the submerged nozzle through opposite outlet openings with a momentum which is directed toward the narrow side walls a mold, and for a defined width:thickness ratio of the primary product, as a function of the ratio of the velocity of the molten material in the core cross section of the submerged nozzle (v) to the casting rate (v), design values for the width (b) of the submerged nozzle and the height (h) of the lateral outlet opening of the submerged nozzle are selected in such a way that a uniform strand shell is formed in the casting direction and peripheral direction along the wide side walls and narrow side walls of the permanent mold.

Method for the production of a continously-cast precursor

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Aschach, Austria

Markus Brummayer