Patents by Inventor Karl-Heinz Spitzer
Karl-Heinz Spitzer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10086426Abstract: 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.Type: GrantFiled: July 14, 2010Date of Patent: October 2, 2018Assignee: Salzgitter Flachstahl GmbHInventors: Karl-Heinz Spitzer, Volker Flaxa, Joachim Kroos, Hellfried Eichholz, Markus Schäperkötter, Rune Schmidt-Jürgensen
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Patent number: 9630243Abstract: 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.Type: GrantFiled: July 3, 2013Date of Patent: April 25, 2017Assignee: SMS GROUP GMBHInventors: Hellfried Eichholz, Karl-Heinz Spitzer, Sven Klawiter, Rune Schmidt-Jürgensen
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Patent number: 9335164Abstract: 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.Type: GrantFiled: March 10, 2008Date of Patent: May 10, 2016Assignee: SMS GROUP GMBHInventors: Jörg Bausch, Josef Karduck, Andreas Runge, Johannes Schwedmann, Jochen Wans, Karl-Heinz Spitzer, Hellfried Eichholz
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Publication number: 20150144288Abstract: 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.Type: ApplicationFiled: July 3, 2013Publication date: May 28, 2015Applicant: SMS SIEMAG AGInventors: Hellfried Eichholz, Karl-Heinz Spitzer, Sven Klawiter, Rune Schmidt-Jürgensen
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Patent number: 8852356Abstract: 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%.Type: GrantFiled: March 11, 2009Date of Patent: October 7, 2014Assignees: Salzgitter Glachstahl GmbH, SMS Siemag AGInventors: Karl-Heinz Spitzer, Bianca Springub, Joachim Konrad, Hellfried Eichholz, Markus Schäperkötter
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Patent number: 8807201Abstract: 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.Type: GrantFiled: June 23, 2010Date of Patent: August 19, 2014Assignee: SMS Siemag AktiengesellschaftInventors: Rolf Franz, Christian Mengel, Olaf Norman Jepsen, Karl-Heinz Spitzer, Hellfried Eichholz
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Patent number: 8695685Abstract: 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.Type: GrantFiled: May 7, 2010Date of Patent: April 15, 2014Assignee: SMS Siemag AktiengesellschaftInventors: Hellfried Eichholz, Jochen Wans, Karl-Heinz Spitzer, Hans-Jürgen Hecken
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Publication number: 20130269905Abstract: A melt charging system for the horizontal strip casting of a molten metal with a run-out element, in particular with a nozzle (9), is characterized in that at least one heating device (21, 22; 28) is arranged in the region of the run-out element for heating up the run-out element.Type: ApplicationFiled: July 29, 2011Publication date: October 17, 2013Applicant: SMS SIEMAG AKTIENGESELLSCHAFTInventors: Joerg Bausch, Reiner Puerling, Jochen Schlueter, Jochen Wans, Karl-Heinz Spitzer, Hellfried Eichholz
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Patent number: 8444743Abstract: The invention relates to a method for producing a steel melt containing up to 30% of Mn, which additionally may comprise up to 5% Si, up to 1.5% C, up to 22% Al, up to 25% Cr, up to 30% Ni, and up to 5% each of Ti, V, NB, Cu, Sn, Zr, Mo, and W, and up to 1% each of N and P, with the remainder being iron and unavoidable steel companion elements.Type: GrantFiled: November 17, 2008Date of Patent: May 21, 2013Assignees: Salzgitter Flachstahl GmbH, Peiner Träger GmbHInventors: Karl-Heinz Spitzer, Christian Redeker
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Patent number: 8408279Abstract: 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.Type: GrantFiled: February 15, 2010Date of Patent: April 2, 2013Assignee: Salzgitter Flachstahl GmbHInventors: Hellfried Eichholz, Sven Klawiter, Rune Schmidt-Jürgensen, Karl-Heinz Spitzer
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Publication number: 20120285653Abstract: The invention relates to a device and a method for the measurement of a thickness, particularly for use in casting systems for strips or profiles, having a measuring device, wherein the thickness of a liquid or pasty melt, or of a solidified cast product is measured on a die, or in a vessel.Type: ApplicationFiled: March 10, 2008Publication date: November 15, 2012Inventors: Jörg Bausch, Josef Karduck, Andreas Runge, Johannes Schwedmann, Jochen Wans, Karl-Heinz Spitzer, Hellfried Eichholz
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Publication number: 20120279677Abstract: 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.Type: ApplicationFiled: July 14, 2010Publication date: November 8, 2012Applicant: SALZGITTER FLACHSTAHL GMBHInventors: Karl-Heinz Spitzer, Volker Flaxa, Joachim Kroos, Hellfried Eichholz, Markus Schäperkötter, Rune Schmidt-Jürgensen
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Patent number: 8302663Abstract: 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.Type: GrantFiled: February 15, 2010Date of Patent: November 6, 2012Assignees: Salzgitter Flachstahl GmbH, SMS Siemag AGInventors: Hellfried Eichholz, Sven Klawiter, Rune Schmidt-Jürgensen, Karl-Heinz Spitzer, Hans-Jürgen Hecken, Jochen Schlüter
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Publication number: 20120138257Abstract: 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.Type: ApplicationFiled: February 15, 2010Publication date: June 7, 2012Inventors: Hellfried Eichholz, Sven Klawiter, Rune Schmidt-Jürgensen, Karl-Heinz Spitzer, Hans-Jürgen Hecken, Jochen Schlüter
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Publication number: 20120132390Abstract: The invention relates to a device and a method for horizontal casting of a metal band (4). The device thereby comprises a dispensing vessel (3) for a melt (1) and a cooled conveyor belt (6) disposed downstream of the dispensing vessel (3) in the casting direction running between two deflecting rollers (77) and on which the metal band (4) can be transported, and wherein the device comprises at least one roller (8, 889, 9 that can be engaged with the metal band (4) for profiling. Early and therefore improved influence on the profile of a metal band (4), that is, the leader band (4), is made possible by said embodiment and further preferred embodiments of the device.Type: ApplicationFiled: June 23, 2010Publication date: May 31, 2012Applicant: SMS SIEMAG AKTIENGESELLSCHAFTInventors: Rolf Franz, Christian Mengel, Olaf Norman Jepsen, Karl-Heinz Spitzer, Hellfried Eichholz
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Publication number: 20120132389Abstract: 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.Type: ApplicationFiled: February 15, 2010Publication date: May 31, 2012Applicant: Salzgitter Flachstahl GmbHInventors: Hellfried Eichholz, Sven Klawiter, Rune Schmidt-Jürgensen, Karl-Heinz Spitzer
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Publication number: 20120125557Abstract: The invention relates to a method and a device for producing steel strips by means of 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 means of a gutter and a siphon-like outlet area designed as a casting nozzle. According to the method, 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 according to the device.Type: ApplicationFiled: May 7, 2010Publication date: May 24, 2012Applicant: SMS SIEMAG AKTIENGESELLSCHAFTInventors: Hellfried Eichholz, Jochen Wans, Karl-Heinz Spitzer, Hans-Jürgen Hecken
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METHOD FOR PRODUCING A HOT ROLLED STRIP AND HOT ROLLED STRIP PRODUCED FROM TRIPLEX LIGHTWEIGHT STEEL
Publication number: 20120121452Abstract: The invention relates to a method for producing a hot strip from a triplex lightweight 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%.Type: ApplicationFiled: March 11, 2009Publication date: May 17, 2012Applicant: SALZGITTER FLACHSTAHL GMBHInventors: Karl-Heinz Spitzer, Bianca Springub, Joachim Konrad, Hellfried Eichholz, Markus Schäperkötter, Zacharias Georgeou -
Publication number: 20120093677Abstract: 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%.Type: ApplicationFiled: March 11, 2009Publication date: April 19, 2012Applicants: SMS SIEMAG AG, Salzgitter Flachstahl GMBHInventors: Karl-Heinz Spitzer, Bianca Springub, Joachim Konrad, Hellfried Eichholz, Markus Schäperkötter
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Publication number: 20120024434Abstract: The invention relates to a method of and a plant for making hot-rolled strips of cast metal, wherein the cast strip is subjected as a rough strip to at least a first step for momogenizing the grain structure in a protective gas and the cast strip is then subjected to at least a further heat-treatment step before it is rolled to reduce its thickness. After the thickness reduction the cast strip is subjected to a second step of homogenization or recrystallization of its grain structure before finally the strip is passed to a cutter and a finished rolled hot piece is severed from the following strip.Type: ApplicationFiled: December 9, 2009Publication date: February 2, 2012Inventors: Rolf Franz, Karl-Heinz Spitzer, Hellfried Eichholz, Markus Schaeperkoetter