Patents by Inventor Markus Schaeperkoetter
Markus Schaeperkoetter 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: 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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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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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
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Patent number: 8069904Abstract: 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.Type: GrantFiled: December 14, 2005Date of Patent: December 6, 2011Assignee: SMS Siemag AGInventors: Karl-Heinz Spitzer, Hellfried Eichholz, Markus Schäperkötter, Guido Bormann
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Patent number: 8047263Abstract: 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 ?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.Type: GrantFiled: December 15, 2005Date of Patent: November 1, 2011Assignee: Salzgitter Flachstahl GmbHInventors: Karl-Heinz Spitzer, Hellfried Eichholz, Markus Schäperkötter, Guido Bormann
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Publication number: 20100059196Abstract: The invention relates to a method for producing hot strips (18) from a deformable lightweight steel which is especially suitable for cold deep drawing and includes as main elements Fe, Mn, Si and Al, and which has a high tensile strength and TRIP and/or TWIP properties. Melt is cast close to its final dimension in a horizontal continuous strip casting installation (1) under a protective gas in order 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. According to the invention, the pre-strip is passed through a device (10) 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.Type: ApplicationFiled: December 14, 2005Publication date: March 11, 2010Applicant: SALZGITTER FLACHSTAHLGMBHInventors: Karl-Heinz Spitzer, Hellfried Eichholz, Markus Schäperkötter, Guido Bormann
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Publication number: 20100000703Abstract: 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 ?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.Type: ApplicationFiled: December 15, 2005Publication date: January 7, 2010Applicant: SALZGITTER FLACHSTAHL GMBHInventors: Karl-Heinz Spitzer, Hellfried Eichholz, Markus Schäperkötter, Guido Bormann
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Publication number: 20090196785Abstract: A transformable lightweight structural steel, which exhibits a resistance to hydrogen embrittlement, has TRIP and TWIP properties and contains the following elements (in wt.-%): C 0.05 to <=1.0; Al 0.0 to <=11.0; Si 0.0 to <=6.0; Al+Si>0.05; Mn 9.0 to =25.0; H<20 ppm, the remainder being iron including incidental steel companion elements, whereby different phases are present depending on the alloy composition. The lightweight structural steel is characterized by associating a higher C content with a lower Mn content and associating a low C content with a higher Mn content, with the C—Mn value pairs being positioned in a C—Mn coordinate system approximately on a straight connecting line that is distant from the connecting line of the C—Mn value pairs being in balance between the austenite and martensite phases.Type: ApplicationFiled: November 22, 2006Publication date: August 6, 2009Applicant: Salzgitter Flachstahl GmbHInventors: Karl-Heinz Spitzer, Hellfried Eichholz, Bianca Springub, Rune Schmidt-Jürgensen, Markus Schäperkötter