Patents by Inventor Horst Gärtner

Horst Gärtner 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: 9079243
    Abstract: The invention relates to a method of controlling or regulating the temperature of a cast strand (2) in a continuous casting installation (1) comprising a control or regulating unit (3) particularly for controlling or regulating the temperature in a secondary cooling of a continuous casting installation using at least one means for cooling the cast strand, characterized by a dynamic change of at least one set temperature of the cast strand on the basis of data and/or signals that are received and/or determined by the control or regulating unit.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: July 14, 2015
    Assignee: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Horst Gaertner, Heinz-Juergen Oudehinken, Wolfgang Sauer, Thomas Heimann
  • Patent number: 8544526
    Abstract: Energy is recovered from steel products produced in a steel mill where the products are transported into a storage area by first extracting heat from the steel products prior to or after transport into the storage area by heat exchangers for a predetermined period in which residual heat of the steel products is transferred by the heat exchangers into a heat-transfer medium to heat same. The heated transfer medium is then transferred via heat-transfer transport lines for power generation or for direct use of the process heat in other heat consumers. This transport of the heat-transfer medium from the heat exchangers to the power-generating plant in the heat-transfer transport lines is carried out only at pump feed pressure or using as a heat-transfer medium liquid mineral or synthetic thermal oil or a salt melt so as not to build up a steam pressure above 2 bar.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: October 1, 2013
    Assignee: SMS Siemag AG
    Inventors: Peter Sudau, Juergen Seidel, Horst Gaertner, Axel Stavenow
  • Publication number: 20120118526
    Abstract: In hot strip plants, after casting, the residual heat of a partial quantity of the slabs has hitherto been used such that the slabs either are directly rolled or are placed warm or hot in the furnace. The remaining slabs normally cool after casting in a hall through which flows air and are stacked before their further transport. The same applies to the residual heat present in the coils after winding, which often cool in the coil-storage area in air. The cooling energy of the continuous-casting plant likewise escapes unused into the surroundings.
    Type: Application
    Filed: March 2, 2010
    Publication date: May 17, 2012
    Inventors: Peter Sudau, Juergen Seidel, Horst Gaertner, Axel Stavenow
  • Publication number: 20100324721
    Abstract: The invention relates to a method of controlling or regulating the temperature of a cast strand (2) in a continuous casting installation (1) comprising a control or regulating unit (3) particularly for controlling or regulating the temperature in a secondary cooling of a continuous casting installation using at least one means for cooling the cast strand, characterized by a dynamic change of at least one set temperature of the cast strand on the basis of data and/or signals that are received and/or determined by the control or regulating unit.
    Type: Application
    Filed: November 27, 2008
    Publication date: December 23, 2010
    Inventors: Horst Gaertner, Heinz-Juergen Oudehinken, Wolfgang Sauer, Thomas Heimann
  • Patent number: 7849911
    Abstract: A device for continuous casting and direct deformation of a metal strand, with a strand guide which is curved after the continuous casting mold in the direction of strand travel, a spray device for liquid coolant, a bending-straightening unit, and an automatic control system for a uniform temperature field in the strand cross section. The cast strand is cooled with a liquid coolant only in the longitudinal sections in which the cast strand is liquid in the cross section. The curved strand guide with the spray device for liquid coolant is followed by a dry zone, which operates without liquid coolant and serves as insulation against the elimination of radiant heat and systematically surrounds the cast strand. A reduction line is provided, which includes individual, hydraulically adjustable deforming rolls or several hydraulically adjustable roll segments and precedes, coincides with, or follows the region of the bending-straightening unit.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: December 14, 2010
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Axel Weyer, Dirk Letzel, Horst Gärtner, Wilfried Milewski, Adolf Gustav Zajber
  • Patent number: 7121323
    Abstract: The invention relates to a method and a continuous casting device for the direct shaping of a metal strand, in particular a steel cast strand (1) of any format (1d). According to said method, the cast strand (1) is only cooled by a liquid coolant (4) in longitudinal sections (6), where the interior of the cast strand (1) remains liquefied and the temperature of the cast strand (1) in a transition zone (7) upstream of, in and/or downstream of a bending and straightening unit (8) is evened out by an insulation of the exterior surface (1b), essentially without the use of a liquid coolant (4), and by progressive thermal radiation. The cast strand (1) is shaped in a dynamically variable reduction section (9) as a result of the compressive strength that is measured on individual shaping rolls (10) or roll segments (11), depending on the compressive force that can be locally applied.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: October 17, 2006
    Assignee: SMS Demag AG
    Inventors: Axel Weyer, Dirk Letzel, Horst Gärtner, Wilfried Milewski, Adolf Gustav Zajber