Patents Assigned to SMS Schloemann-Siemag Aktiengesellschaft
  • Patent number: 6038907
    Abstract: A straightening machine for rolled beams, particularly I-beams, wherein at least one of the two straightening disks which rest from the inside against the beam flanges and are supported by a straightening shaft is axially adjustable. One of the straightening disks is fixedly connected to the straightening shaft through a mounting sleeve, while the other straightening disk is fixedly positioned in accordance with its adjusting dimension on a sliding sleeve which is adjustably mounted on the sleeve. Optionally, the mounting sleeve can be coupled to the sliding sleeve, on the one hand, and the sliding sleeve can separately be coupled to a piston/cylinder unit, on the other hand.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: March 21, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Markus Willems, Reinhold Thomas
  • Patent number: 6038757
    Abstract: A method of operating a roll stand arrangement including one or more edging/roughing stands followed by a compact rolling group arranged transversely offset relative to the edging/roughing stands and connected to the edging/roughing stands through connecting roller conveyors and a transverse conveying unit. The compact rolling group is composed of first and second universal stands or two-high stands and an intermediate edging stand arranged between the first and second stands. In accordance with a predetermined cycle, preliminary sections arriving from a continuous casting plant are supplied directly without intermediate storage to the roll stand arrangement and are finish rolled successively in the compact rolling group into profiled rolled strands and are supplied, before or while the next following preliminary section enters the compact rolling group, to a cooling bed arranged laterally of the rolling line.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: March 21, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Hubert Muller, Ulrich Svejkovsky
  • Patent number: 6039374
    Abstract: A suspended coupling for lifting devices, particularly for picking up and depositing thermal insulation hoods from and over wire coils, includes a crossbeam to each end of which is connected a double-armed lever pair in an articulated manner and in a mirror-inverted manner relative to each other, wherein one lever arm pair is connected above the crossbeam through connecting rods to the lifting device, and wherein the other lever arm pair has hook-shaped ends underneath the crossbeam, wherein the hook-shaped ends can be coupled to support projections arranged on the upper side of the thermal insulation hood after the hook-shaped ends have been pivoted toward each other by a pulling movement transmitted to the lever pair by the lifting movement of the connecting rods.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: March 21, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventor: Dieter Klein
  • Patent number: 6038906
    Abstract: A roll stand with work rolls supported by a back-up roll either directly or through an intermediate roll, particularly work rolls which are axially displaceable in opposite directions, wherein at least one of the rolls of the roll stand is constructed with varying resilience over the length thereof, particularly with a greater flattening behavior in at least a portion thereof. For this purpose, at least one of the rolls has in the area between the roll neck and the outer surface of the roll at least one notch extending concentrically about the axis.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: March 21, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Hans-Georg Hartung, Jochen Munker, Hans-Peter Richter
  • Patent number: 6036915
    Abstract: A water-cooled multipart hood for metallurgical vessels, particularly pouring ladles, with cooling tubes arranged welded tube against tube and/or with gaps between the tubes, with an opening arranged in the cover of the hood for inserting a refractory core piece for guiding electrodes therethrough, and with openings for discharging flue gases. The water-cooled ladle hood further includes a lower outer hood and a lower inner hood with at least three gas exhaust openings and a gas conducting pipe arranged in the lower outer hood, wherein an upper hood with at least three gas exhaust openings, a gas conducting pipe and an opening is arranged in the lower inner hood.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: March 14, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Klaus-Jurgen Kuhne, Manfred Schubert
  • Patent number: 6035687
    Abstract: A rolling mill stand for rolling wire and including a frame, at least one chock mounted in the frame and having a roll-side bearing and a thrust bearing, a roll support shaft supported in the roll-side bearing and the thrust bearing and projecting outwardly past the roll-side bearing so that a roll can be mounted on a projecting portion of the support shaft, and a hydraulic cylinder unit for adjusting the roll support shaft relative to a further roll support shaft supported in the frame in an adjusting direction and having a cylinder connected with the frame and a piston connected with the chock.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: March 14, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Rudiger Grimmel, Karl Keller
  • Patent number: 6035683
    Abstract: A method of casting and rolling and a roll stand arrangement for rolling finished sections (sheet piling sections) from a preliminary section which arrives from a continuous casting machine and has approximate final dimensions. The method utilizes roll stand arrangements which operate in a rolling line in a reversing operation. A roughing rolling group has in a first rolling line a runout roller table and a transverse transport device following the runout roller table and in a second rolling line a parallel run-in roller table for a compact tandem stand group. A horizontal stand of the roughing rolling group and/or an intermediate edging stand of the compact tandem stand group each have two selectable grooves, wherein a universal stand on the exit side of the compact tandem group has one or more two-high horizontal stands with grooved rolls.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: March 14, 2000
    Assignees: SMS Schloemann-Siemag Aktiengesellschaft, Chaparral Steel
    Inventors: David A. Fournie, Lloyd M. Schmelzle, Georg Engel, Ulrich Svejkovsky, Hans-Jurgen Nowak
  • Patent number: 6029490
    Abstract: A device for changing the vertical position of the vertical rolls in universal roll stands for rolling girders of different heights, wherein the vertical cross section of the housing of the bearing chock is constructed asymmetrically and the vertical distances of the planes of the two slideways of the bearing chock from the horizontal longitudinal center plane of the vertical roll are dimensioned differently. The increase of the distance between the roller table and the center of the vertical roll can also be achieved by shims which can be placed and fastened on horizontal guide surfaces of the bearing chocks of the vertical rolls of the universal roll stand.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: February 29, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Michael Minnerop, Hans-Jurgen Reismann, Hubert Muller
  • Patent number: 6030470
    Abstract: A method and a plant for rolling hot-rolled wide strip from continuously cast thin slabs of ferritic/pearlitic microalloyed structural steels with a microalloy with vanadium and/or with niobium and/or with titanium in a CSP plant or compact strip production plant, wherein the cast slab strand is supplied divided into rolling lengths through an equalizing furnace to a multiple-stand CSP rolling train and is continuously rolled in the CSP rolling train into hot-rolled wide strip, is then cooled in a cooling stretch and is reeled into coils. For achieving optimum mechanical properties in hot-rolled wide strip by thermomechanical rolling, a controlled structure development is carried out when the thin slabs travel through the CSP plant.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: February 29, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Karl-Ernst Hensger, Robert Davis
  • Patent number: 6029492
    Abstract: A fine steel or wire train with a multiple-stand roughing train, a multiple-stand intermediate train and a finishing block composed of six or eight or ten roll stands with a common drive, wherein at least the two last roll stands of the finishing block are each provided with an individual drive unit and the drive shafts of the last two roll stands which can be uncoupled intersect the principal drive shafts of the coupled stands.
    Type: Grant
    Filed: March 6, 1999
    Date of Patent: February 29, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Hubert Muller, Rudiger Grimmel, Karl Keller, Klaus Hoffmann
  • Patent number: 6024316
    Abstract: A method and a plant for transferring a wire coil from a coil forming chamber of a coil forming station of a cooling conveyor onto a C-shaped hook of a hook-type conveyor equipped with travel rails, wherein the wire coils are transferred directly onto the vertically swung hooks. The hook-type conveyor includes device for opening and closing a travel rail area and a cooperating gripping device with a frame receiving the gripping device, and with a drive for swinging the hook from a horizontal position into a vertical position and vice versa, and a drive for raising and lowering a hook, and finally a drive for longitudinally moving a hook.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: February 15, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventor: Dieter Klein
  • Patent number: 6023957
    Abstract: A universal roll stand with a divided housing on the operator side, wherein a vertical housing stirrup engages between the upper and lower separating lines or planes of separation of the housing. A transfer element overlapping the two separating lines for transmitting the vertical forces between the upper and lower housing parts is arranged in each lateral housing groove arranged on both sides of the roll housing on the operator side.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: February 15, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventor: Michael Minnerop
  • Patent number: 6021656
    Abstract: A roll stand without roll housings has at least two work rolls which are mounted in roll bearings and which each extend along a roll axis, wherein the rolls define a roll gap and the roll axes define a roll plane, so that the roll plane contains both roll axes, wherein the roll bearings are connected to each other through two groups of connecting elements, and wherein one group of connecting elements each is arranged on each side of the roll plane. The connecting elements of the groups are adjustable over an adjusting length distance, wherein at least one of the groups is adjustable under load by an adjustment drive in the adjusting direction over an under-load length distance and wherein the under-load length distance is substantially smaller than the adjusting length distance. With respect to the portion of the adjusting length distance which exceeds the under-load length distance, the groups of connecting elements are constructed so as to be without drive.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: February 8, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Hans Bogendorfer, Hans-Jurgen Reismann
  • Patent number: 6021544
    Abstract: An apparatus for blasting a strip emerging from a roll stand, wherein the apparatus includes a separate strip edge blasting unit, wherein the strip edge blasting unit and the strip blasting apparatus are control-technically connected to each other. The strip edge blasting unit includes nozzle beams with several nozzles whose nozzle beam inputs are connected to the valve outputs of the valves of the existing strip blasting apparatus. The nozzle beams are arranged in the areas of the edge zones of the strip blasting apparatus. The blasting nozzles of the strip blasting apparatus are controlled in such a way that always only that nozzle is provided with compressed air which is located next to the last edge zone nozzle, i.e., is located outside of the existing blasting range, so that the strip edge is specifically blasted and dried.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: February 8, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventor: Klaus-Peter Eberwein
  • Patent number: 6006574
    Abstract: An apparatus for cooling the work rolls of a roll stand includes for each roll a cooling water duct equipped with spray nozzles at a spray beam as well as devices for supplying cooling water and for removing heated water, a cooling water guide plate for the upper work roll arranged at an acute angle relative to the rolling stock surface and provided with a stripping member at the front of the guide plate facing the upper roll, and an essentially horizontally extending cooling water guide plate located closely underneath the rolling stock plane and provided with a stripping member for the lower roll.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: December 28, 1999
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Jurgen Armenat, Martin Braun
  • Patent number: 6003330
    Abstract: A device for water cooling rolled steel sections, particularly for cooling the flanges of girders placed on a roller table, includes a plurality of spray nozzles arranged on both sides of the roller table and at a distance above the conveying plane of the roller table, wherein the spray nozzles are arranged spaced apart from each other and wherein the spraying direction of the spray nozzles is adjustable in a vertical plane. The spray nozzles may be arranged in such a way that the angles of the spraying directions of the spray nozzles can be adjusted concurrently in vertical planes.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: December 21, 1999
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventor: Michael Minnerop
  • Patent number: 6000259
    Abstract: A finishing train for continuously cast strip material and a method of operating the finiching train, wherein an edging stand is arranged in front of the finishing train for preventing strip material cracks occurring during the reduction of the strip thickness at the strip edges, wherein position control circuits are arranged in front of the adjusting device of the edging stand. The arrangement includes a superimposed pressure control circuit (edging degree monitoring circuit) which responds to the adjusting force of the edging stand and the position thereof, and a load limiting control unit which responds to adjusting forces of the grooved rolls of the edging stand exceeding permissible values and/or to loads of the drive motors of the grooved rolls exceeding permissible values, for increasing the predetermined gap width and/or reducing the desired pressure of the adjusting device of the edging stand.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: December 14, 1999
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Hermann Wolters, Wolfgang Spies
  • Patent number: 5996200
    Abstract: A descaling device for slabs or strips in hot rolling mills includes nozzles fed by a pressurized water piston pump for directing water jets against the slab or strip for removing scale adhering to the surface of the slab or strip. At least one additional pressurized water piston pump is provided, wherein the piston pumps are connected in parallel and the pumps can be switched on and off separately. A second row of nozzles may be arranged in front of the nozzles at a distance which ensures that the water jets do not influence each other. The water pressure of the water supplied to the second row of nozzles is preferably lower than the water pressure supplied to the first row of nozzles.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: December 7, 1999
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Dieter Rosenthal, Joachim Pfeiffer, Horst Grafe, Max Munker, Berthold Hild
  • Patent number: 5992785
    Abstract: A reel for round rolling stock, such as fine steel or medium steel, particularly wire, with a coil basket for the wire coil to be coiled and vertically extending guide pins for the wire arranged in the coil basket, and with a raisable and lowerable coil floor which can be actuated by a lifting rod. A device for collecting wire windings hanging from the wire coil is arranged in the area of the upper reel head. The collecting device may be of annular construction and the outer diameter of the annular collecting device essentially corresponds to the outer diameter of the reel and the inner diameter of the annular collecting device corresponds essentially to the outer diameter of the outer surface of the coil basket.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: November 30, 1999
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft 40237
    Inventor: Gunter Grenz
  • Patent number: 5987955
    Abstract: A method of operating a coil transfer apparatus and a coil transfer apparatus with a coiling station having a coiling roller each at an entry side and an exit side and with a uncoiling station with an uncoiling roller each on an entry side and an exit side. The method includes coiling a strip in a coiling station into a coil or placing a coil onto the coiling rollers, supporting the coil by the coiling rollers during coiling or after placement of the coil on the coiling rollers, and transferring the coil for uncoiling to the uncoiling station and supporting the coil after the transfer during uncoiling by the uncoiling rollers. The method further includes the steps of moving the coiling and uncoiling stations toward each other and raising the coiling roller on the entry side of the coiling station.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: November 23, 1999
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventor: Frank Benner