Patents by Inventor Hans Georg Hartung

Hans Georg Hartung 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: 10077942
    Abstract: The invention relates to a device for controlling and/or regulating an annealing or heat treatment furnace (2) of a production line (1) processing metal material, which comprises the annealing or heat treatment furnace (2) and at least one measuring instrument (7, 8, 17), which detects at least one material property of a strip material (6) located in the production line (1), wherein the annealing or heat treatment furnace (2) and the at least one measuring instrument (7, 8) interact in a regulating and/or control circuit of an automated process control, which regulates and/or controls the annealing or heat treatment furnace (2) in connection with a furnace control, wherein according to the invention, a solution is created wherein an improvement of the process control over the previously known prior art can be achieved.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: September 18, 2018
    Assignee: SMS Group GmbH
    Inventors: Hans-Georg Hartung, Ulrich Sommers, Matthias Baerwald, Alexandre Lhoest
  • Publication number: 20160102916
    Abstract: The invention relates to a device for controlling and/or regulating an annealing or heat treatment furnace (2) of a production line (1) processing metal material, which comprises the annealing or heat treatment furnace (2) and at least one measuring instrument (7, 8, 17), which detects at least one material property of a strip material (6) located in the production line (1), wherein the annealing or heat treatment furnace (2) and the at least one measuring instrument (7, 8) interact in a regulating and/or control circuit of an automated process control, which regulates and/or controls the annealing or heat treatment furnace (2) in connection with a furnace control, wherein according to the invention, a solution is created wherein an improvement of the process control over the previously known prior art can be achieved.
    Type: Application
    Filed: May 22, 2014
    Publication date: April 14, 2016
    Inventors: Hans-Georg Hartung, Ulrich Sommers, Matthias Baerwald, Alexandre Lhoest
  • Patent number: 8544308
    Abstract: The invention relates to a roll stand comprising at least one roll (1) having a rotation axis (a), said roll being supported in two installed parts (2, 3) disposed in the axial end regions of the roll (1) and each having a center plane (M), wherein the roll (1) can be positioned in the direction perpendicular to the transport direction (F) of the product to be rolled by means of at least one positioning element (4). In order to be able to introduce a bending moment acting counter to the roll bending moment into the roller in a simple manner and without additional elements, according to the invention, each installed part (2, 3) is connected to a bending lever (5, 6) and the positioning element (4) is disposed such that the positioning force thereof is introduced into the bending lever (5, 6) at a location (G) removed from the center plane (M) of the installed part (2, 3), and thereby into the installed part (2, 3).
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: October 1, 2013
    Assignee: SMS Siemag AG
    Inventor: Hans-Georg Hartung
  • Publication number: 20110315280
    Abstract: A method of annealing and descaling hot-rolled austenitic stainless steel strip wherein. The steel strip is descaled in a connected plasma descaling installation after annealing and subsequent cooling. The plasma descaling is carried out under vacuum in a plurality of stages, and the steel strip is subjected to a controlled cooling between these stages and after the final stage by means of cooling rolls so that the steel strip has a temperature below 100° C. when exiting the plasma descaling installation. An apparatus to practice the method is also disclosed.
    Type: Application
    Filed: December 12, 2009
    Publication date: December 29, 2011
    Inventors: Holger Behrens, Klaus Frommann, Hans-Georg Hartung, Matthias Kretschmer, Lutz Kümmel
  • Publication number: 20110232350
    Abstract: The invention relates to a roll stand comprising at least one roll (1) having a rotation axis (a), said roll being supported in two installed parts (2, 3) disposed in the axial end regions of the roll (1) and each having a center plane (M), wherein the roll (1) can be positioned in the direction perpendicular to the transport direction (F) of the product to be rolled by means of at least one positioning element (4). In order to be able to introduce a bending moment acting counter to the roll bending moment into the roller in a simple manner and without additional elements, according to the invention, each installed part (2, 3) is connected to a bending lever (5, 6) and the positioning element (4) is disposed such that the positioning force thereof is introduced into the bending lever (5, 6) at a location (G) removed from the center plane (M) of the installed part (2, 3), and thereby into the installed part (2, 3).
    Type: Application
    Filed: March 16, 2009
    Publication date: September 29, 2011
    Inventor: Hans-Georg Hartung
  • Publication number: 20100285239
    Abstract: The invention relates to a method of stabilizing a strip guided between stripping dies of a hot-dip coating installing and provided with a coating, and also to a corresponding hot-dip coating installation. In this context, stabilizing forces are applied to the strip on the basis of the detected strip position by coils which are arranged downstream of the stripping dies in the strip displacement direction and act electromagnetically and in a contactless manner on the displaceable steel strip. In order to improve the stabilization of the strip in the region of the stripping die, the invention proposes that the distance between the line of action of the strip-stabilizing means and the stripping dies be adjusted to a value?a distance threshold value which is determined as a function of the strip width taking into account a coefficient ?, wherein the coefficient ? is calculated as a function of the strip thickness and the strip tension.
    Type: Application
    Filed: August 22, 2008
    Publication date: November 11, 2010
    Inventors: Holger Behrens, Michael Zielenbach, Hans-Georg Hartung, Pascal Fontaine
  • Publication number: 20100050937
    Abstract: A method for hot dip coating metal strip includes guiding the strip obliquely or vertically through a molten coating metal. The coating thickness is controlled after the strip has emerged from the coating bath, and thin metal strip, which has a tendency to vibrate, is sealed towards the bottom by an electromagnetic traveling field that acts as a sealing field while the coating is laterally guided to compensate for ferromagnetic attraction. The electromagnetic field of one or more main coils in each inductor generates the electromagnetic traveling field as a blocking field or as a pump field, and several correction fields are arranged within the magnet yoke surface. The correction fields are individually determined according to width levels of the metal strip and are distributed according to a production program, and the correction fields are activated by separate pieces of power supply equipment.
    Type: Application
    Filed: September 19, 2009
    Publication date: March 4, 2010
    Inventors: Holger Behrens, Rolf Brisberger, Bodo Falkenhahn, Hans Georg Hartung, Bernhard Tenckhoff, Walter Trakowski, Michael Zielenbach
  • Publication number: 20090272319
    Abstract: The present invention relates to an apparatus for hot-dip coating of a metal strand, in particular a steel strip, in which the metal strand (1) passes vertically through a vessel containing a melted coating metal (2) and an upstream guide channel (4) in a region of which at least two inductors (5) for producing an electromagnetic field are arranged on both sides of the metal strand (1) for retaining the coating metal (2) in the vessel and an increased volume of the coating metal (2) is available in at least one section (4a). For killing the coating metal bath, according to the invention, the increased volume is provided in a region of the magnetic field of the inductors (5).
    Type: Application
    Filed: June 28, 2006
    Publication date: November 5, 2009
    Inventors: Holger Behrens, Rolf Brisberger, Hans-Georg Hartung, Ruediger Zerbe
  • Patent number: 7530250
    Abstract: The invention relates to a method for straightening a metal strip (1) which is guided in the direction of transportation (R) through a straightening machine (2) and is straightened. In the straightening device (2), the metal strip (1) is impinged upon by a straightening force (F) which is applied by a plurality of straightening rollers (3) in the direction (N) which is perpendicular to the surface of the metal strip (1). According to the invention, prior to the metal strip (1) entering into the straightening machine (2), the thickness (d) of the metal strip (1) is determined and the position (a) of the straightening rollers (3) in the direction (N) which is perpendicular to the surface of the metal strip (1) is taken into account according to the determined thickness (d).
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: May 12, 2009
    Assignee: SMS Demag AG
    Inventors: Hans-Georg Hartung, Andreas Gramer, Ralf-Hartmut Sohl, Peter de Kock, Bodo Falkenhahn
  • Patent number: 7476276
    Abstract: The invention relates to a device for hot dip coating a metal bar (1), especially a steel strip, in which the metal bar (1) is directed vertically through a container (3) accommodating the molten coating metal (2) and through a guide channel (4) mounted upstream thereof. The inventive device comprises at least two inductors (5) which are arranged on both sides of the metal bar (1) in the area of the guide channel (4) and generate an electromagnetic field for retaining the coating metal (2) inside the container (3). In order to relax the coating bath, the distance (d) between the walls (6) that delimit the guide channel (4) is not kept constant in a direction (N) extending perpendicular to the surface of the metal strip (1) in the zone (H) of the vertical extension of the guide channel (4), which is located between the bottom side (7) thereof and the bottom area (8) of the container (3).
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: January 13, 2009
    Assignee: SMS Demag AG
    Inventors: Holger Behrens, Rolf Brisberger, Hans-Georg Hartung, Bernhard Tenckhoff, Walter Trakowski, Michael Zielenbach
  • Publication number: 20080210256
    Abstract: The invention relates to a method of a cleaning a metal strip (1). In order to improve the cleaning of the strip, according to the invention, it is provided that the metal strip (1) is first subjected to a first high-pressure cleaning (4) with at least one liquid jet in a first region (2) of a cleaning device (3), and in that the metal strip (1) thereafter is subjected to an ultrasonic cleaning (6) in a second region off the cleaning device (3), at which the metal strip (1) is displaced through a container filled with liquid. The invention further relates to a device for cleaning a metal strip.
    Type: Application
    Filed: February 22, 2006
    Publication date: September 4, 2008
    Applicant: Halssen & Lyon GMBH
    Inventors: Matthias Kretschmer, Hans-Georg Hartung
  • Publication number: 20080145569
    Abstract: The invention relates to a method for hot-dip coating a metal strip (1), particularly a steel strip, in which the metal strip (1) is fed to a receptacle (5) accommodating the melted coating metal (4) through a hole (6) in the bottom area of the receptacle (5) after passing through a furnace (2) and a roll chamber (3) that adjoins the furnace (2) in the direction of travel (F) of the metal strip (1). An electromagnetic field is generated in the bottom area of the receptacle (5) so as to retain the coating metal (4) in the receptacle (5). In order to obtain more advantageous operating conditions especially in case the performance of the hot-dip coating system drops, different gas atmospheres are maintained in at least two separate spaces (7, 8) of the roll chamber (3). The invention further relates to a hot-dip coating device.
    Type: Application
    Filed: June 30, 2006
    Publication date: June 19, 2008
    Inventors: Holger Behrens, Rolf Brisberger, Hans-Georg Hartung, Bodo Falkenhahn
  • Publication number: 20080098784
    Abstract: The invention relates to a method for straightening a metal strip (1) which is guided in the direction of transportation (R) through a straightening machine (2) and is straightened. In the straightening device (2), the metal strip (1) is impinged upon by a straightening force (F) which is applied by a plurality of straightening rollers (3) in the direction (N) which is perpendicular to the surface of the metal strip (1). According to the invention, prior to the metal strip (1) entering into the straightening machine (2), the thickness (d) of the metal strip (1) is determined and the position (a) of the straightening rollers (3) in the direction (N) which is perpendicular to the surface of the metal strip (1) is taken into account according to the determined thickness (d).
    Type: Application
    Filed: August 16, 2005
    Publication date: May 1, 2008
    Inventors: Hans-Georg Hartung, Andreas Gramer, Ralf-Hartmut Sohl, Peter de Rock, Bodo Falkenhahn
  • Publication number: 20080047314
    Abstract: The invention relates to a device (1) for the continuous lengthening of a metal strip (2) by traction, said device comprising, in the strip transporting direction (R), at least three S-roll units (3, 4, 5, 6, 7) each provided with at least two rolls (8, 9 10, 11, 12, 13, 14, 15, 16, 17). According to the invention, the rolls (8, 9, 10, 11, 12, 13, 14, 15, 16, 17) are positioned in such a way that the metal strip (2) is wound round them at a roll periphery angle (a) of more than 180°, and at least the second S-roll unit (4) in the strip transporting direction (R) comprises two rolls (10, 11) with different-sized diameters (D10, D11).
    Type: Application
    Filed: September 19, 2005
    Publication date: February 28, 2008
    Inventors: Andreas Gramer, Hans-Georg Hartung, Holger Behrens, Jan Hausler, Fritz Luckmann
  • Publication number: 20070104885
    Abstract: The invention relates to a device for hot dip coating a metal bar (1), especially a steel strip, wherein the metal bar (1) is vertically guided through a container (3) receiving the molten coating metal (2) and through a guide channel (4) which is arranged upstream therefrom. A magnet, especially an electromagnetic inductor (5), is arranged in the region of the guide channel, said magnet generating a magnetic field in order to retain the coating metal (2) in the container (3). The container (3) is provided with molten coating metal (2) by a premelt container (6). The invention also relates to a method for hot dip coating wherein said type of device is used. According to the invention, the premelt container (6) is arranged below the guide channel (4) in order to technically adapt the existing system in a simple, efficient manner.
    Type: Application
    Filed: June 8, 2004
    Publication date: May 10, 2007
    Inventors: Hans-Georg Hartung, Bernhard Tenckhoff, Rolf Brisberger, Holger Behrens, Klaus Frommann
  • Patent number: 7214272
    Abstract: The invention relates to a device for coating metal bars (1), particularly steel strips, by hot dipping. At least some sections of the metal bar (1) are vertically guided through a container receiving the molten coating metal (2), said metal bar (1) being guided by at least one roller (4) which runs on bearings. In order to increase the service life of the roller bearings, the roller, or at least the axis (5) thereof, penetrates the side walls (6) of the container (3) and is mounted outside the container (3).
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: May 8, 2007
    Assignee: SMS Demag AG
    Inventors: Hans-Georg Hartung, Walter Trakowski
  • Patent number: 7159431
    Abstract: A section straightening machine is operated by a method which involves passing the structural sections through the array of straightening tools. Section straightening forces are applied to adjustable shafts carrying the tools and adjusters at the service sides of the shaft applying forces acting counter to the section straightening forces.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: January 9, 2007
    Assignee: SMS Demag Aktiengesellschaft
    Inventors: Hans Georg Hartung, Werner Kohlstedde, Markus Willems, Hans-Jürgen Reismann, Manfred Riffelmann, Ulrich Svejkovsky, Stefan Ernst
  • Publication number: 20060243203
    Abstract: The invention relates to a device for hot dip coating a metal bar (1), especially a steel strip, in which the metal bar (1) is directed vertically through a container (3) accommodating the molten coating metal (2) and through a guide channel (4) mounted upstream thereof. The inventive device comprises at least two inductors (5) which are arranged on both sides of the metal bar (1) in the area of the guide channel (4) and generate an electromagnetic field for retaining the coating metal (2) inside the container (3). In order to relax the coating bath, the distance (d) between the walls (6) that delimit the guide channel (4) is not kept constant in a direction (N) extending perpendicular to the surface of the metal strip (1) in the zone (H) of the vertical extension of the guide channel (4), which is located between the bottom side (7) thereof and the bottom area (8) of the container (3).
    Type: Application
    Filed: June 16, 2004
    Publication date: November 2, 2006
    Inventors: Holger Behrens, Rolf Brisberger, Hans-Georg Hartung, Bernhard Tenckhoff, Walter Trakowski, Michael Zielenbach
  • Patent number: 7059163
    Abstract: The invention relates to a roll stand comprising a crown-variable-control (CVC) roll pair, preferably a CVC working roll pair and a back-up roll pair, which comprise a contact area (B cont) in which a horizontally active torque (M) acts that leads to a twisting of the rolls and thus to axial forces in the roll bearings. In order to keep the axial forces in the roll bearings as small as possible, the torque (M) is minimized by an appropriate CVC grinding.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: June 13, 2006
    Assignee: SMS Demag AG
    Inventors: Hans Georg Hartung, Klaus Klamma, Wolfgang Rohde, Jürgen Seidel
  • Patent number: 6925845
    Abstract: The invention relates to a method for tension levelling a cold-rolled strip, whereby the strip passes through a series of break rolls and a series of traction rolls and in the course of its extension is subjected to traction between the two series of rolls. The strip is bent under traction in a series of high-traction rolls, located between the brake roll and the traction roll series, in order to increase the degree of levelling. To achieve this, the series of high-traction rolls between the brake and the traction rolls has at least two traction rolls for generating the strip traction and bending operation.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: August 9, 2005
    Assignee: SMS Demag Aktiengesellschaft
    Inventors: Holger Behrens, Hans Georg Hartung, Ralf Ulrich, Bernd Kreft, Stefan Melster, Bodo Falkenhahn, Andreas Gramer