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).
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Patent number: 10077942Abstract: 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: GrantFiled: May 22, 2014Date of Patent: September 18, 2018Assignee: SMS Group GmbHInventors: Hans-Georg Hartung, Ulrich Sommers, Matthias Baerwald, Alexandre Lhoest
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Publication number: 20160102916Abstract: 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: ApplicationFiled: May 22, 2014Publication date: April 14, 2016Inventors: Hans-Georg Hartung, Ulrich Sommers, Matthias Baerwald, Alexandre Lhoest
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Patent number: 8544308Abstract: 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: GrantFiled: March 16, 2009Date of Patent: October 1, 2013Assignee: SMS Siemag AGInventor: Hans-Georg Hartung
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Publication number: 20110315280Abstract: 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: ApplicationFiled: December 12, 2009Publication date: December 29, 2011Inventors: Holger Behrens, Klaus Frommann, Hans-Georg Hartung, Matthias Kretschmer, Lutz Kümmel
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Publication number: 20110232350Abstract: 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: ApplicationFiled: March 16, 2009Publication date: September 29, 2011Inventor: Hans-Georg Hartung
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Publication number: 20100285239Abstract: 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: ApplicationFiled: August 22, 2008Publication date: November 11, 2010Inventors: Holger Behrens, Michael Zielenbach, Hans-Georg Hartung, Pascal Fontaine
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Publication number: 20100050937Abstract: 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: ApplicationFiled: September 19, 2009Publication date: March 4, 2010Inventors: Holger Behrens, Rolf Brisberger, Bodo Falkenhahn, Hans Georg Hartung, Bernhard Tenckhoff, Walter Trakowski, Michael Zielenbach
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Publication number: 20090272319Abstract: 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: ApplicationFiled: June 28, 2006Publication date: November 5, 2009Inventors: Holger Behrens, Rolf Brisberger, Hans-Georg Hartung, Ruediger Zerbe
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Patent number: 7530250Abstract: 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: GrantFiled: August 16, 2005Date of Patent: May 12, 2009Assignee: SMS Demag AGInventors: Hans-Georg Hartung, Andreas Gramer, Ralf-Hartmut Sohl, Peter de Kock, Bodo Falkenhahn
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Patent number: 7476276Abstract: 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: GrantFiled: June 16, 2004Date of Patent: January 13, 2009Assignee: SMS Demag AGInventors: Holger Behrens, Rolf Brisberger, Hans-Georg Hartung, Bernhard Tenckhoff, Walter Trakowski, Michael Zielenbach
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Publication number: 20080210256Abstract: 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: ApplicationFiled: February 22, 2006Publication date: September 4, 2008Applicant: Halssen & Lyon GMBHInventors: Matthias Kretschmer, Hans-Georg Hartung
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Publication number: 20080145569Abstract: 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: ApplicationFiled: June 30, 2006Publication date: June 19, 2008Inventors: Holger Behrens, Rolf Brisberger, Hans-Georg Hartung, Bodo Falkenhahn
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Publication number: 20080098784Abstract: 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: ApplicationFiled: August 16, 2005Publication date: May 1, 2008Inventors: Hans-Georg Hartung, Andreas Gramer, Ralf-Hartmut Sohl, Peter de Rock, Bodo Falkenhahn
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Publication number: 20080047314Abstract: 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: ApplicationFiled: September 19, 2005Publication date: February 28, 2008Inventors: Andreas Gramer, Hans-Georg Hartung, Holger Behrens, Jan Hausler, Fritz Luckmann
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Publication number: 20070104885Abstract: 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: ApplicationFiled: June 8, 2004Publication date: May 10, 2007Inventors: Hans-Georg Hartung, Bernhard Tenckhoff, Rolf Brisberger, Holger Behrens, Klaus Frommann
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Patent number: 7214272Abstract: 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: GrantFiled: January 30, 2003Date of Patent: May 8, 2007Assignee: SMS Demag AGInventors: Hans-Georg Hartung, Walter Trakowski
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Patent number: 7159431Abstract: 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: GrantFiled: October 27, 2004Date of Patent: January 9, 2007Assignee: SMS Demag AktiengesellschaftInventors: Hans Georg Hartung, Werner Kohlstedde, Markus Willems, Hans-Jürgen Reismann, Manfred Riffelmann, Ulrich Svejkovsky, Stefan Ernst
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Publication number: 20060243203Abstract: 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: ApplicationFiled: June 16, 2004Publication date: November 2, 2006Inventors: Holger Behrens, Rolf Brisberger, Hans-Georg Hartung, Bernhard Tenckhoff, Walter Trakowski, Michael Zielenbach
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Patent number: 7059163Abstract: 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: GrantFiled: July 25, 2001Date of Patent: June 13, 2006Assignee: SMS Demag AGInventors: Hans Georg Hartung, Klaus Klamma, Wolfgang Rohde, Jürgen Seidel
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Patent number: 6925845Abstract: 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: GrantFiled: August 1, 2001Date of Patent: August 9, 2005Assignee: SMS Demag AktiengesellschaftInventors: Holger Behrens, Hans Georg Hartung, Ralf Ulrich, Bernd Kreft, Stefan Melster, Bodo Falkenhahn, Andreas Gramer