Patents by Inventor Dirk Lieftucht

Dirk Lieftucht 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).

  • Patent number: 10399142
    Abstract: A strand casting installation in which a conicity of a die is set during a casting procedure by measuring temperature values along a centric measuring path running in a casting direction along an adjustably disposed die wall; measuring temperature values along a peripheral measuring path running in a casting direction along the adjustably disposed die wall, wherein the peripheral measuring path runs between the centric measuring path and a lateral periphery of the die wall, and a spacing of the peripheral measuring path from the lateral periphery of the die wall is smaller than a spacing of the centric measuring path from the other lateral periphery of the die wall; determining a centric temperature distribution curve along the centric measuring path from the temperature values measured along the centric measuring path; determining a peripheral temperature distribution curve along the peripheral measuring path from the temperature values measured along the peripheral measuring path; determining a first area u
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: September 3, 2019
    Assignee: SMS GROUP GMBH
    Inventors: Dirk Lieftucht, Artemy Krasilnikov, Felix Max Fanghänel
  • Patent number: 10293400
    Abstract: A method for setting a conicity of a die of a strand casting installation during a casting procedure, including the steps of: measuring temperature values along a centric measuring path running in a casting direction along an adjustably disposed die wall; measuring temperature values along a peripheral measuring path running in a casting direction along the adjustably disposed die wall, wherein the peripheral measuring path runs between the centric measuring path and a lateral periphery of the die wall, and a spacing of the peripheral measuring path from the lateral periphery of the die wall is smaller than a spacing of the centric measuring path from the other lateral periphery of the die wall; determining a centric temperature distribution curve along the centric measuring path from the temperature values measured along the centric measuring path; determining a peripheral temperature distribution curve along the peripheral measuring path from the temperature values measured along the peripheral measuring pa
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: May 21, 2019
    Assignee: SMS GROUP GMBH
    Inventors: Dirk Lieftucht, Artemy Krasilnikov, Felix Max Fanghänel
  • Publication number: 20190143403
    Abstract: A strand casting installation in which a conicity of a die is set during a casting procedure by measuring temperature values along a centric measuring path running in a casting direction along an adjustably disposed die wall; measuring temperature values along a peripheral measuring path running in a casting direction along the adjustably disposed die wall, wherein the peripheral measuring path runs between the centric measuring path and a lateral periphery of the die wall, and a spacing of the peripheral measuring path from the lateral periphery of the die wall is smaller than a spacing of the centric measuring path from the other lateral periphery of the die wall; determining a centric temperature distribution curve along the centric measuring path from the temperature values measured along the centric measuring path; determining a peripheral temperature distribution curve along the peripheral measuring path from the temperature values measured along the peripheral measuring path; determining a first area u
    Type: Application
    Filed: January 17, 2019
    Publication date: May 16, 2019
    Inventors: Dirk LIEFTUCHT, Artemy KRASILNIKOV, Felix Max FANGHÄNEL
  • Publication number: 20180318917
    Abstract: A method for setting a conicity of a die of a strand casting installation during a casting procedure, including the steps of: measuring temperature values along a centric measuring path running in a casting direction along an adjustably disposed die wall; measuring temperature values along a peripheral measuring path running in a casting direction along the adjustably disposed die wall, wherein the peripheral measuring path runs between the centric measuring path and a lateral periphery of the die wall, and a spacing of the peripheral measuring path from the lateral periphery of the die wall is smaller than a spacing of the centric measuring path from the other lateral periphery of the die wall; determining a centric temperature distribution curve along the centric measuring path from the temperature values measured along the centric measuring path; determining a peripheral temperature distribution curve along the peripheral measuring path from the temperature values measured along the peripheral measuring pa
    Type: Application
    Filed: May 3, 2018
    Publication date: November 8, 2018
    Inventors: Dirk LIEFTUCHT, Artemy KRASILNIKOV, Felix Max FANGHANEL
  • Patent number: 9200843
    Abstract: An injector cooling block for holding at least one injector for introducing a medium into a metallurgical vessel. The injector cooling block is arranged in or on a wall of the metallurgical vessel. The injector block has at least one plate in which a cooling channel or a cooling bore through which cooling medium can flow is arranged. The cooling channel or cooling bore separate a hot zone from a cold zone. At least one measuring element for measuring temperature and/or mechanical elongation is arranged in the hot zone. The measuring element has at least one optical waveguide which is integrated into the hot zone or fastened to the hot zone.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: December 1, 2015
    Assignee: SMS group GMBH
    Inventors: Gereon Fehlemann, Dirk Lieftucht
  • Patent number: 8939191
    Abstract: A method for measuring the temperature in a mold by a fiber-optic measurement method and a correspondingly designed mold. For this purpose, light waveguides, through which laser light is conducted, are arranged in grooves in the outside surface of the copper mold plate. The temperature at several measurement points along the measurement fiber is determined by a temperature detection system. In particular, the method makes it possible to achieve much greater local resolution of the temperature measurements than that achieved by thermocouples.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: January 27, 2015
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Matthias Arzberger, Dirk Lieftucht
  • Patent number: 8649986
    Abstract: A process for predicting longitudinal cracks during continuous casting of steel slabs. The local strand temperature is measured by thermocouples distributed in the mold wall. In this process, the risk of the strand rupturing as a result of longitudinal cracking is assessed statistically taking into account the current temperature values measured by the thermocouples arranged in the mold and the temperature values determined when no cracks are present.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: February 11, 2014
    Assignee: SMS Siemag AG
    Inventors: Dirk Lieftucht, Markus Reiferscheid, Matthias Arzberger
  • Publication number: 20130016754
    Abstract: The invention relates to an injector cooling block (1) for holding at least one injector (2) for introducing a medium into a metallurgical vessel (3), especially into an electric arc furnace, the injector cooling block (1) being arranged in or on a wall (4) of the metallurgical vessel (3). The injector block (1) comprises at least one plate (5) in which a cooling channel or a cooling bore (6) through which cooling medium can flow are arranged, said cooling channel or cooling bore (6) separating a hot zone (7) from a cold zone (8). In order to better detect temperatures or stresses in the injector cooling block, at least one measuring element (9) for measuring the temperature and/or the mechanical elongation is arranged in the hot zone (7), the measuring element (9) comprising at least one optical waveguide (10) which is integrated into the hot zone (7) or fastened to the hot zone (7).
    Type: Application
    Filed: January 18, 2011
    Publication date: January 17, 2013
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Gereon Fehlemann, Dirk Lieftucht
  • Publication number: 20120327968
    Abstract: The invention relates to an electrode arm (1) of a metallurgical melting furnace, especially an arc furnace, the electrode arm (1) having at least one measuring element (2) for measuring a physical variable. To allow improved and more precise measurement of the physical variable required for operation of the furnace, the measuring element (2) is designed to measure the temperature and/or the mechanical elongation of the electrode arm (1), the measuring element (2) comprising at least one optical waveguide (3) which extends along the longitudinal extension (L) of the electrode arm (1) in at least some sections.
    Type: Application
    Filed: February 8, 2011
    Publication date: December 27, 2012
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Gereon Fehlemann, Dirk Lieftucht
  • Patent number: 8162030
    Abstract: The invention relates to a mould for casting metal, having a plurality of temperature measuring devices (300) that are arranged in a wall (100) of the mould in order to detect the temperature distribution at that location. In order to make it easier to install the plurality of temperature measuring devices in the wall and in order to increase the reliability of the measurement results from said devices, it is proposed according to the invention to arrange the temperature measuring devices (300) such that they are positioned fixedly with respect to one another in a module (400), such that the temperature measuring devices together with the module form a structural unit which can be preassembled before the mould is installed. The structural unit is then fastened in or to the wall of the mould as the mould is being assembled.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: April 24, 2012
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Stephan Schulze, Dirk Lieftucht, Uwe Plociennik
  • Publication number: 20110186262
    Abstract: The invention relates to a mould for casting metal, having a plurality of temperature measuring devices (300) that are arranged in a wall (100) of the mould in order to detect the temperature distribution at that location. In order to make it easier to install the plurality of temperature measuring devices in the wall and in order to increase the reliability of the measurement results from said devices, it is proposed according to the invention to arrange the temperature measuring devices (300) such that they are positioned fixedly with respect to one another in a module (400), such that the temperature measuring devices together with the module form a structural unit which can be preassembled before the mould is installed. The structural unit is then fastened in or to the wall of the mould as the mould is being assembled.
    Type: Application
    Filed: June 23, 2009
    Publication date: August 4, 2011
    Applicant: SMS Siemag Aktiengesellschaft
    Inventors: Stephan Schulze, Dirk Lieftucht, Uwe Plociennik
  • Publication number: 20110167905
    Abstract: The invention provides a method for the cast level measurement in a mold by means of sensors for fiber optic temperature detection, which are disposed in the mold copper plate at the height of the casting level. The invention further comprises respective sensors. Fiber optic cables are disposed in said sensors, which allow simple, reliable and highly locally resolved temperature monitoring at the height of the casting level by means of a suitable temperature analysis system. By means of the temperatures determined by the sensors, a conclusion can be made as to the exact height of the casting level. Furthermore, the shape of the casting level shaft may be determined by means of which further parameters of the casting process become accessible.
    Type: Application
    Filed: July 30, 2009
    Publication date: July 14, 2011
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Matthias Arzberger, Dirk Lieftucht, Uwe Plociennik
  • Publication number: 20110139392
    Abstract: The invention presents a method for measuring the temperature in a mold by means of a fiber-optic measurement method and a correspondingly designed mold. For this purpose, light waveguides, through which laser light is conducted, are arranged in grooves in the outside surface of the copper mold plate. The temperature at several measurement points along the measurement fiber is determined by a temperature detection system. In particular, the method makes it possible to achieve much greater local resolution of the temperature measurements than that achieved by thermocouples.
    Type: Application
    Filed: July 7, 2009
    Publication date: June 16, 2011
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Matthias Arzberger, Dirk Lieftucht
  • Publication number: 20110144926
    Abstract: A process for predicting longitudinal cracks during continuous casting of steel slabs. The local strand temperature is measured by thermocouples distributed in the mould wall. In this process, the risk of the strand rupturing as a result of longitudinal cracking is assessed statistically taking into account the current temperature values measured by the thermocouples arranged in the mould and the temperature values determined when no cracks are present.
    Type: Application
    Filed: April 30, 2009
    Publication date: June 16, 2011
    Applicant: SMS Siemag AG
    Inventors: Dirk Lieftucht, Markus Reiferscheid, Matthias Arzberger