Patents by Inventor Adolf Gustav Zajber

Adolf Gustav Zajber 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: 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: 7845389
    Abstract: A method and continuous casting device for dynamically placing rolling segments against a cast bar made of metal, particularly steel. The continuous casting device is a bloom or billet casting device and has pairs of rollers that are placed against each other in a position-controlled and pressure-controlled manner by piston-cylinder units. The hydraulic pressure is switched from position-controlled operation to pressure-controlled operation when a threshold pressure is reached. The roller segments are arranged in the hot bar zone and the soft reduction zone.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: December 7, 2010
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Adolf-Gustav Zajber, Holger Beyer-Steinhauser, Christian Geerkens, Axel Weyer
  • Patent number: 7284593
    Abstract: The invention relates to a method for collecting and evacuating run-off water from the inner arc of the strand guide (8) of a beam blank casting machine, according to which the cast strand (2) is solidified and the required dissipation of heat is achieved, among other things, by sprayed water, whereby run-off water can also collect on the inner arc of the strand (2). The run-off water is collected using a suction head (1). The run-off water that is collected in the suction head is fluidized using fluidizers or momentum inhibitors. The fluidized water is sucked off and the water-air mixture is split into water and air in a separation device. The invention also relates to a device for carrying out said method, comprising at least one suction device that is arranged or can be driven along the strand guide (8), said suction device having an attachable suction head (1) and being equipped with fluidizers. The suction device (4) is driven along the beam blank preliminary section (9) by means of manipulators (7).
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: October 23, 2007
    Assignee: SMS Demag AG
    Inventors: Dirk Letzel, Josef Kockentiedt, Thomas Fest, Jürgen Friedrich, Adolf-Gustav Zajber
  • Patent number: 7159642
    Abstract: A method and strand guide for supporting, guiding and cooling casting strands (1) made of steel, especially preliminary sections (2) for girders, which are cooled by injected water (29) and are drawn, serve to prevent cracks, especially surface cracks, from appearing in the microstructure by adapting the cooling conditions of the surface of the strand in the region of the secondary cooling, and serve to prevent undercooling of the strand shell, wherein in order to avoid an undesirable solidification structure on the upper flange edges or in other cross-sectional areas, the cooling and support of the beam blank format are so adapted to the solidification range that cooling and support are provided exclusively where a crater is formed.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: January 9, 2007
    Assignee: SMS Demag
    Inventors: Adolf Gustav Zajber, Dirk Letzel, Wilfried Milewski, Thomas Fest, Heinz-Dietrich Schneider, Lothar Fischer, Herbert Brotzki
  • Patent number: 7137437
    Abstract: Continuously cast products (12) are often provided with surface defects such as oscillation marks (17) and other non-homogeneous structures in the cast state thereof during production in a casting die (11) of a continuous casting plant (10). Defects which render a strip useless for superior applications also frequently occur on the strip surface during subsequent milling of the slab (12?) into a strip. The aim of the invention is to minimize said defects and provide the rolling mill with a slab (12?) having a desired preliminary profile and an improved near-surface structure. Said aim is achieved by arranging a reducing roll stand (30) in the area of the bending rolls or straightening driver rolls (24) within the continuous casting plant (10).
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: November 21, 2006
    Assignee: SMS Demag AG
    Inventors: Adolf Gustav Zajber, Dirk Letzel
  • 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
  • Patent number: 7108043
    Abstract: The invention relates to a method for the weight-accurate filling of ingot molds in a non-iron casting machine, e.g. a copper anode casting machine or a zinc anode casting machine, which is configured in the form of casting wheels that are use for production in a fully mechanized casting operation and are provided with the ingot molds. The aim of the invention is to obtain the desired precise-weight quality of a piece and exact plane parallelism of the bordering surfaces thereof. Said aim is achieved by carrying out the following steps: first, a liquid metal is introduced into an intermediate trough (4, 4?) at a regulated mass flow rate, the continuous dynamic weight increase being simultaneously determined; second, liquid metal is fed into a dosing trough (4, 4?) which is located on each side of the intermediate trough (4, 4?) by alternately tilting the intermediate trough (4, 4?) on one side followed by the other.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: September 19, 2006
    Assignee: SMS Demag AG
    Inventors: Erich Willems, Adolf Gustav Zajber, Heinz Josef Leuwer, Ronald Wilmes
  • Patent number: 7086449
    Abstract: An apparatus for the continuous casting of metals, especially of steel, is equipped with a base frame (2) carrying a continuous casting mold (1) and an oscillating device (3) disposed on the base frame (2) and with a foot roller frame (4) disposed on the foot end (1a) of the continuous casting mold (1). In order to obtain better protection for the mold region and components disposed downstream thereof, it is proposed that the continuous casting mold (1) together with an oscillation frame (3b) and an oscillating drive (3a) engaging the oscillating frame (3b) be arranged in an upwardly and laterally closed housing (5) and that the foot roller frame (4) fastened on the continuous casting mold (1) extends through a laterally shielding lower housing (6).
    Type: Grant
    Filed: December 1, 2001
    Date of Patent: August 8, 2006
    Assignee: SMS Demag Aktiengesellschaft
    Inventors: Adolf Gustav Zajber, Thomas Fest
  • Publication number: 20060151144
    Abstract: Disclosed are a method and a continuous casting device for dynamically placing roller segments (13 to 17) against a cast bar (4) made of metal, particularly steel. The inventive continuous casting device comprises pairs of rollers (18) which are placed against each other in a position-controlled and pressure-controlled manner by means of piston-cylinder units (19), the hydraulic pressure being switched from position-controlled operation to pressure-controlled operation when a threshold pressure is reached. In order to extend the range of applications of the inventive method, said method is applied to roller segments (13 to 17) of continuous bloom and billet casting devices, said roller segments (13 to 17) being arranged in the cold bar zone, hot bar zone, or soft reduction zone.
    Type: Application
    Filed: July 10, 2003
    Publication date: July 13, 2006
    Inventors: Adolf-Gustav Zajber, Holger Beyer-Steinhauser, Christian Geerkens, Axel Weyer
  • Patent number: 7036557
    Abstract: A device for the continuous casting of metals, especially steel material, to elongated products in a multistrand casting apparatus with a plurality of continuous casting molds which are oscillatingly driven in an oscillating frame (2) by means of leaf springs (4) whereby the leaf springs (4) extend transversely to the casting direction (1) and serve for guide and weight compensation. The smallest possible strand spacing “A” is provided for that on a longitudinal foundation frame (5) to housings (6a) in the form of compact flat cassettes (6) are secured one behind the other in the strand travel direction. In the housings upper and lower leaf spring pairs (4a; 4b) run transversely to the cast strands (3) and the oscillating strands (11) engage the leaf spring pairs (4a; 4b), whereby a front oscillating drive (11a) works synchronously with the rear oscillating drive (11b).
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: May 2, 2006
    Assignee: SMS Demag Aktiengesellschaft
    Inventors: Thomas Fest, Herbert Brotzki, Martin Becker, Adolf Gustav Zajber
  • Publication number: 20050211413
    Abstract: The invention relates to a method for collecting and evacuating run-off water from the inner arc of the strand guide (8) of a beam blank casting machine, according to which the cast strand (2) is solidified and the required dissipation of heat is achieved, among other things, by sprayed water, whereby run-off water can also collect on the inner arc of the strand (2). The run-off water is collected using a suction head (1). The run-off water that is collected in the suction head is fluidised using fluidisers or momentum inhibitors. The fluidised water is sucked off and the water-air mixture is split into water and air in a separation device. The invention also relates to a device for carrying out said method, comprising at least one suction device that is arranged or can be driven along the strand guide (8), said suction device having an attachable suction head (1) and being equipped with fluidisers. The suction device (4) is driven along the beam blank preliminary section (9) by means of manipulators (7).
    Type: Application
    Filed: March 11, 2003
    Publication date: September 29, 2005
    Inventors: Dirk Letzel, Josef Kockntiedt, Thomas Fest, Jurgen Friedrich, Adolf-Gustav Zajber
  • Publication number: 20040050528
    Abstract: An apparatus for the continuous casting of metals, especially of steel, is equipped with a base frame (2) carrying a continuous casting mold (1) and an oscillating device (3) disposed on the base frame (2) and with a foot roller frame (4) disposed on the foot end (1a) of the continuous casting mold (1). In order to obtain better protection for the mold region and components disposed downstream thereof, it is proposed that the continuous casting mold (1) together with an oscillation frame (3b) and an oscillating drive (3a) engaging the oscillating frame (3b) be arranged in an upwardly and laterally closed housing (5) and that the foot roller frame (4) fastened on the continuous casting mold (1) extends through a laterally shielding lower housing (6).
    Type: Application
    Filed: July 21, 2003
    Publication date: March 18, 2004
    Inventors: Adolf Gustav Zajber, Thomas Fest
  • Publication number: 20040020632
    Abstract: A method and strand guide for supporting, guiding and cooling casting strands (1) made of steel, especially preliminary sections (2) for girders, which are cooled by injected water (29) and are drawn, serve to prevent cracks, especially surface cracks, from appearing in the microstructure by adapting the cooling conditions of the surface of the strand in the region of the secondary cooling, and serve to prevent undercooling of the strand shell, wherein in order to avoid an undesirable solidification structure on the upper flange edges or in other cross-sectional areas, the cooling and support of the beam blank format are so adapted to the solidification range that cooling and support are provided exclusively where a crater is formed.
    Type: Application
    Filed: July 28, 2003
    Publication date: February 5, 2004
    Inventors: Adolf Gustav Zajber, Dirk Letzel, Wilfried Milewski, Thomas Fest, Heinz-Dietrich Schneider, Lothar Fischer, Herbert Brotzki