Sms Siemag Aktiengesellschaft

Salzgitter Flachstahl Gmbh

Sms Group Gmbh

Salzgitter Glachstahl Gmbh

Hellfried Eichholz

Karl-Heinz Spitzer

Rune Schmidt-Jürgensen

Markus Schäperkötter

Sven Klawiter

Bianca Springub

Jochen Wans

Hans-Jürgen Hecken

Guido Bormann

Markus Schaeperkoetter

Olaf Norman Jepsen

Joachim Kroos

Christian Mengel

Thomas Evertz

Zacharias Georgeou

Volker Flaxa

Rolf Franz

Joachim Konrad

Andreas Runge

Jörg Bausch

Johannes Schwedmann

Jochen Schlüter

Josef Karduck

In a method for producing a hot strip of steel with material properties that are adjustable over the strip cross-section, a steel melt is fed onto a revolving casting belt of a horizontal strip casting facility and solidifies to form a pre-strip having a thickness between 6 and 20 mm, and the pre-strip is subjected to a hot rolling process after complete solidification. A gas jet or plasma jet composed of metallic and/or non-metallic elements that affect the material properties of the hot strip influences the steel melt that is still liquid and/or just about to start to solidify. The concentration of the elements introduced into the melt by the gas jet or plasma jet and diffusing into the melt is adjusted across the strip thickness and strip width by changing the influencing kinetic energy of the gas jet or plasma jet, the partial gas pressure and/or the applied temperature.

Method for producing a hot strip by means of strip casting with material properties adjustable across the strip cross-section

A continuously operating casting and rolling system with a strip tension control includes a casting unit having a melt-containing feed vessel with a horizontal casting channel and a discharge region in the form of a casting nozzle, and a primary cooling zone with two guide rolls and a circulating cooled casting strip and at least one downstream rolling unit having at least two drivable rollers. In order to minimize the tension on the cast strip, the casting unit and the subsequent rolling unit are mechanically decoupled, wherein for the decoupling at least one driver unit having at least two drivable rollers for driving the strip is arranged between the casting belt and the rolling unit.

Continuously operating strip casting and rolling system

A method for producing a cast strip from steel with properties that can be adjusted across a cross section and a length of the strip, includes applying a coating mass including a carrier liquid with additives contained therein to a side of a rotating cast band of a horizontal strip cast system, drying the coating mass for removing liquid components of the coating mass, applying a steel melt to the side of the rotating cast band via a melt container, wherein the dried coating mass is materially united with the applied steel melt; and allowing the steel melt to solidifiy to a pre-strip.

Process and device for producing a cast strip with material properties which are adjustable over the strip cross section

A device and a method for measuring thickness in horizontal strip casting installations for casting strip or sections. A measuring device measures the thickness of the liquid or pasty melt in the mold. The measuring device operates without contact by a laser and an optical sensor that are arranged so that the surface of the liquid or pasty melt is monitored, whereby the thickness distribution over an entire width of the melt is measured. A measuring signal is generated, and a control signal is generated based on the measuring signal in order to control a device for distributing the melt.

Device for thickness measurement and method therefor

The invention relates to a method for producing a hot strip from transformation-free ferritic steel, wherein a melt is cast into a roughed strip and the latter is subsequently rolled into a hot strip. For this purpose, it is provided that the melt is cast in a horizontal strip casting facility under conditions of a calm flow and free of bending into a roughed strip in the range between 6 and 20 mm and is subsequently rolled into hot strip having a degree of deformation of at least 50%.

Method for producing a hot rolled strip and hot rolled strip produced from ferritic steel

A device and a method for horizontal casting of a metal band. The device includes a dispensing vessel for a melt and a cooled conveyor belt disposed downstream of the dispensing vessel in the casting direction running between two deflecting rollers and on which the metal band can be transported. The device further includes at least one roller that can be engaged with the metal band for profiling. Early and therefore improved influence on the profile of a metal band, that is the leader band, is thereby made possible.

Device and method for horizontal casting of a metal band

A method and a device for producing steel strips by belt casting, wherein a molten metal is output from a feed vessel onto a circulating casting belt of a horizontal belt casting system under protective gas by a gutter and a siphon-like outlet area designed as a casting nozzle. At least one plasma jet, which renders the area of action inert and heats the area of action, influences the outlet-side area of the casting nozzle and the molten metal exiting therefrom at least during the casting process. For this purpose, at least one plasma torch, which produces a plasma jet and is directed at the outlet area of the casting nozzle in a direction opposite the casting direction, is provided.

Method and device for producing steel strips by means of belt casting

The invention relates to a casting nozzle for a horizontal strip casting system, in particular for casting steel strip, wherein the nozzle is designed as a narrow rectangular hollow block having a bottom, top and two side walls and made of refractory material, the outflow region being located only slightly above a cooled continuous belt receiving the outflowing melt. Viewed in the flow direction, it is provided that the clear cross-section of the hollow block in the outflow region reduces uniformly in the direction toward the outflow and the end face of the bottom of the hollow block is designed with respect to the surface of the continuous belt such that the melt contacts the continuous belt perpendicularly.

Casting nozzle for a horizontal continuous casting system

The invention relates to a casting nozzle for a horizontal strip casting system, especially for casting steel strip. The casting nozzle is connected to a feed channel and is designed as a rectangular refractory hollow block, the outlet region of which being only slightly above the cooled continuous belt which accommodates the outflowing melt. The hollow block is subdivided at least once in the direction of casting and a narrow sealing element is arranged on the partition side of the segments, the width of the remaining gaps in the partition area being selected as to close when the casting nozzle is operated.

In a method for producing hot strips from a deformable lightweight steel which includes as main elements Fe, Mn, Si and Al, melt is cast close to its final dimension in a horizontal continuous strip casting installation under a protective gas to form a pre-strip between 6 and 20 mm, and the temperature of the pre-strip is adjusted after complete solidification and before the beginning of a hot-rolling process. The pre-strip is passed through a device under a protective gas for homogenization in concert with a selective maintenance of the temperature, cooling or heating, and subsequently subjected to a hot-rolling process having at least one pass with a total degree of deformation of at least 50%, and is then reeled as a hot strip following the cooling process. The hot-rolling process is executed in-line or in decoupled manner depending on the ratio of casting speed to rolling speed.

Method for producing hot strips from lightweight steel

The invention relates to a device for the horizontal continuous strip casting of steel, especially steel with high manganese content, for producing a pre-strip with a thickness &#x2266;15 mm. The device includes a tundish containing the melt, a primary cooling zone having two deflection pulleys and a revolving cooled conveyor belt, and a secondary cooling zone which follows the primary cooling zone and has a housed roller table. A guide element having at least one roller is hereby arranged at the end of the primary cooling zone and before the start of the secondary cooling zone.

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Ilsede, Germany

Hellfried Eichholz