Roller Patents (Class 164/448)
  • Patent number: 9630247
    Abstract: Guide roller including a bearing journal at each of two ends. Each bearing journal is provided with a plain bearing designed as a hollow journal, and can be connected to the coolant supply line to conduct coolant through the hollow journal into or out of the coolant channel. The plain bearing is lubricated by coolant conducted through the bearing journal. A roller assembly for a strand casting system is provided with a plurality of guide rollers. The guide rollers are arranged at an axial distance from each other along a strand produced by the strand casting system and are each rotatably supported in a respective bearing mount. Each bearing mount is arranged on at least one frame part in a preloaded manner The bearing mounts are supported on the frame parts so as to be self-setting by elastically pliable connecting structure.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: April 25, 2017
    Assignee: SMS Concast AG
    Inventor: Christian Dratva
  • Patent number: 8544426
    Abstract: A coolant passage apparatus 10 is formed by joining a plurality of resin moldings 31 and 32 which are each individually molded. A pair of coolant receiving pipes 11 and 12 for respectively receiving a coolant from a pair of engine heads and riser pipes 17 and 18 adjoining the coolant receiving pipes are provided, a central passage 19 is formed between the riser pipes, and a communicating tube 21 which is towards a radiator is formed to communicate with the central passage. Assuming that a line passing through the center of the central passage 19 is (indicated by) A and lines passing through the centers of the above-mentioned riser pipes are (indicated by) B respectively, each of the lines B is outwardly and obtusely angled with respect to the line A, and the riser pipes are respectively molded on both sides of the central passage to incline outwardly.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: October 1, 2013
    Assignees: Nippon Thermostat Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Tetsuji Watanabe, Fujio Inoue
  • Publication number: 20130146244
    Abstract: The invention relates to a roller device (1), in particular for forming a strand guiding section (100) of a casting machine, comprising a cross beam (30) and at least one roller element (10) supported on the cross beam (30) by means of roller bearings (20, 22), wherein guiding means for at least three different media are provided in the cross beam (30).
    Type: Application
    Filed: May 11, 2011
    Publication date: June 13, 2013
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Erich Hovestaedt, Peter Jonen, Helge Middeldorf, Ingo Olgemoeller
  • Patent number: 8302665
    Abstract: The present invention provides a casting roll of a twin-roll strip caster, including: a nickel plating layer formed on an outer circumferential surface and an end surface of the casting roll; a nickel-boron alloy plating layer formed on the nickel plating layer located on the end surface of the casting roll; and a hard plating layer formed on the nickel plating layer located on the outer circumferential surface of the casting roll and an outer circumferential surface of the nickel-boron alloy plating layer located on the end surface of the casting roll. The present invention improves durability of the casting roll.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: November 6, 2012
    Assignee: POSCO
    Inventors: Seong-In Jeong, Sung-Jin Park, Dae-Sung Lee
  • Patent number: 8302664
    Abstract: A strand guide (1) for a steel slab continuous casting installation includes a number of segments (2) with support elements (6, 7) which support a strand (3) on two opposite sides (4, 5). The support elements (6, 7) are arranged in a lower frame (8) and an upper frame (9) which are formed to guide the strand (3) in a conveying direction (F). The upper and the lower frames (8, 9) are adjusted relative to one another in the conveying direction (F) with adjusting elements (10).
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: November 6, 2012
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Axel Stavenow, Axel Weyer
  • Patent number: 8267154
    Abstract: The invention concerns a roller and a roller arrangement for a continuous casting installation comprising two bearing blocks and the roller carried by the bearing blocks, wherein the roller has a rotationally symmetrical roller casing and wherein the roller bearing is arranged within the roller casing.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: September 18, 2012
    Assignees: Georg Springmann Industrie- und Bergbautechnik GmbH, SMS Concast AG
    Inventors: Georg Springmann, Dirk Hasselbrink, Dieter Warmbier, Matthias Nobbe, Christian Dratva
  • Patent number: 8261811
    Abstract: A roll line in a continuous caster is disclosed. It comprises at least two segment roll lines (1, 2) for transporting steel. Each segment roll line (1, 2) comprises a roll body (3, 4), bearings (5) for supporting the roll body (3, 4), bearing housings (6). The roll body (3, 4) has two shaft ends (7, 8, 9, 10), and a ring (11). Adjacent shaft ends (8, 9) of segment roll lines (1, 2) are at least partly inside the through-hole of the ring (11) and the adjacent shafts ends (8, 9) are connected via torque transferring element (t1). There is a closed compartment (12) for receiving lubricant for lubricating the torque transferring element (T1). The closed compartment (12) is in the through-hole and is sealed off by sealing elements (s1, s2) located between the ring (11) and circumferential surfaces of the first and second adjacent shaft ends (8, 9).
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: September 11, 2012
    Assignee: Aktiebolaget SKF
    Inventors: Mats Johansson, Daniel Johansson
  • Patent number: 8256494
    Abstract: A continuous-casting unit produces a longitudinally extending and traveling strand having a solid shell and a liquid core. A strand-guiding apparatus has a plurality of longitudinally spaced section frames and respective pairs of roller assemblies carried on the frames and transversely flanking and bearing transversely on the strand. Each pair forms a gap through which the strand passes, and each roller assembly is formed by two aligned subrollers. A respective center is provided bearing between the subrollers of each roller assembly and bracing inner ends of the respective subrollers transversely against the respective frame. Respective outer rollers at outer ends of the subrollers of each roller assembly brace the respective outer ends transversely against the respective frame. The subrollers are shaped or supported on the respective frame such that in an unloaded condition the gap is transversely narrower at the center bearing than at the outer bearing.
    Type: Grant
    Filed: October 29, 2011
    Date of Patent: September 4, 2012
    Inventors: Markus Reifferscheid, Juergen Seidel
  • Patent number: 8162033
    Abstract: A strand guide for a cast strand has a first roller bridge to one wide side of the cast strand and having ends defining two first section corners, a first fixed support adjacent the first roller bridge, a second roller bridge to the opposite wide side of the cast strand and having ends defining two second section corners, and a second fixed support adjacent the second roller bridge. Respective rows of rollers are rotatably mounted on each of the first and second roller bridges for engaging the respective wide sides and thereby supporting and guiding the cast strand. Respective first and second hydraulic positioners connect the first and second corners of the first and second roller bridges to the first and second fixed supports for individual positioning the rollers of the first and second roller bridges symmetrically or asymmetrically relative to the neutral phase of the cast strand.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: April 24, 2012
    Assignee: SMS Demag Aktiengesellschaft
    Inventors: Axel Weyer, Axel Stavenow
  • Patent number: 8136575
    Abstract: A twin-roll continuous casting machine includes: a moving mechanism for moving, relative to one roll, another roll; a plurality of upper side support rolls for supporting the one-roll side of a cast slab separated from the one roll and withdrawn; and a plurality of lower side support rolls for supporting the other-roll side of the cast slab pulled out from the clearance between both rolls. The upper side support rolls are rotatably supported by first bearers, while the lower side support rolls are rotatably supported by second bearers having a force for urging the lower side support rolls toward the cast slab. The cast slab is transported, with an upper surface portion of the cast slab pulled out from the clearance between both rolls serving as a reference surface.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: March 20, 2012
    Assignee: Mitsubishi-Hitachi Metals Machinery, Inc.
    Inventors: Kiyoshi Kagehira, Tatsunori Sugimoto
  • Patent number: 8100166
    Abstract: A continuous casting installation, which has a vertically oriented strand guide arranged below a mold, wherein a drive for driving the cast strand and bending it into the horizontal direction are arranged below the strand guide. A drive that serves exclusively for driving the cast strand is installed below the lower end of the strand guide, and a drive that serves exclusively for bending the cast strand is installed below the drive for driving the cast strand. The drive that serves exclusively for driving the cast strand is installed at least partially in a cassette, which is detachably mounted in the continuous casting installation. The continuous casting installation also has a cooling chamber, and the cassette with the drive that serves exclusively for driving the cast strand is installed in the cooling chamber.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: January 24, 2012
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Jörg Bausch, Bernd Leifeld, Jürgen Müller
  • Patent number: 8033318
    Abstract: Plant for the continuous casting of thick slabs, blooms or other similar steel products comprising an ingot mold and a series of containment and guiding rollers placed in the area below the ingot mold on both sides of the cast product, i.e. on the intrados and extrados, respectively. The rollers are arranged on at least three longitudinal rows and all have an axial length shorter that the width of the cast product. The rollers of a central longitudinal row are advantageously staggered with respect to the lateral longitudinal row rollers in such a way as to reduce the surface of the bulges created due to the ferrostatic pressure existing in the liquid core of the product at ingot mold outlet. Furthermore, the pitch between the adjacent rollers is advantageously always of different values so as to not cause the buckling of the bulges with a single frequency.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: October 11, 2011
    Assignee: Danieli & C. Officine Meccaniche S.p.A.
    Inventors: Nuredin Kapaj, Alfredo Poloni
  • Patent number: 8006742
    Abstract: A casting roll having an outer periphery capable of being efficiently cooled is disclosed. The casting roll has a roll body on which side weirs abut, short tube-shaped supports each coaxially with and protruding from the roll body, a stub axle fitted into the support, a sleeve fitted over the support and a flange contiguous with the stub axle and abutting on the sleeve on a side away from the roll body. The roll body is formed with longitudinal cooling passages passing through the roll from one end to the other end of the roll as well as radial cooling passages each adjacent to a corresponding end of the roll and extending from an inner periphery of the roll to a corresponding longitudinal cooling passage. A plug is fitted into each end of the longitudinal cooling passages and abuts on the sleeve. With a distance between the longitudinal cooling passages and the outer periphery of the roll body being reduced as much as possible, cooling water is passed through a portion of the roll body.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: August 30, 2011
    Assignee: IHI Corporation
    Inventors: Katsumi Nakayama, Hiroyuki Otsuka, Hisahiko Fukase
  • Patent number: 7971629
    Abstract: A strand guide roller (100) of a strand guide device for guiding a cast strand (200) includes at least one first and one second sectional rollers arranged next to each other, includes a middle bearing (120-1, 120-2) located between both sectional rollers (110-1, 110-2) for receiving and supporting the roller journal (112-1) of the first sectional roller (110-1) formed on an end surface of the first sectional roller (110-1) adjacent to the second sectional roller (110-2), with the first and second sectional rollers being connected with each other outside of the middle bearing by a plug-in connection.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: July 5, 2011
    Assignee: Hermmerich & Colleagues
    Inventors: Axel Bekurts, Albrecht Girgensohn, Axel Stavenow, Erich Hovestaedt, Dirk Mangler
  • Publication number: 20110114282
    Abstract: The invention is based on the object of creating a strand guide roller being configured in a modular manner, which can be retrofitted to different stand casting widths without any substantial effort, and which has a cooling effect starting from the core regions of the roller extending up to the region near the surface thereof, thereby improving the life of the strand guide roller and achieving a comparatively cost-effective maintenance. The problem is solved according to the invention in that a first centrally disposed, axially extending flow channel (11 and a second centrally disposed, axially extending flow channel (12) are present in each roller module (2, 3, 4), that flow channels (15, 16) are disposed in the region near the surface of each roller module (2, 3, 4), and that connecting channels (17) connect the respective flow channels (15) to the first separate flow channel (11), and that connecting channels (18) connect the respective flow channels (16) to the separate second flow channel (12).
    Type: Application
    Filed: June 18, 2009
    Publication date: May 19, 2011
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Erich Hovestadt, Peter Jonen
  • Patent number: 7926547
    Abstract: In the case of a strand guiding roller with at least one roller shell and with at least two supporting shafts, two supporting shafts being respectively connected in a rotationally fixed manner to a roller shell and each supporting shaft being rotatably supported in a supporting bearing, to achieve a type of construction that is simple and can withstand the high thermal and mechanical loading that occurs, it is proposed that the roller shell is connected in a rotationally fixed manner to the supporting shafts carrying it on both sides by shrink-fit connections or by press-fit connections.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: April 19, 2011
    Assignee: Siemens Vai Metals Technologies GmbH & Co.
    Inventors: Johann Poeppl, Guoxin Shan, Heinrich Thoene, Josef Watzinger, Franz Wimmer
  • Patent number: 7740052
    Abstract: A method for extending the casting cycle for the two-roll strip casting of a steel strip, with inline rolling thereof, the steel strip being rolled in at least two successive rolling units of a rolling mill having replaceable working rolls. The casting process is carried out independently from the roll replacement by replacing the working rolls of one rolling unit during the casting, below or above the steel strip. An installation for carrying out the method includes a lifting devices for lifting the working rolls off the steel strip so as not to damage the strip during the replacement of the rolls.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: June 22, 2010
    Assignees: SMS Siemag Aktiengesellschaft, Main Management Inspiration AG
    Inventors: Heinrich Marti, Jacques Barbé
  • Publication number: 20100032125
    Abstract: The invention relates to a device and a method for supporting and guiding a cast strand in a strand guiding device (100) after leaving a continuous casting mould. The strand guiding device (100) comprises at least one segment, which has a first roller bridge (114-1) on one wide side of the cast strand and a second roller bridge (114-2) on the opposite wide side of the cast strand, wherein at least one roller is rotatably mounted respectively on the first and second roller bridges to support and guide the cast strand.
    Type: Application
    Filed: October 2, 2007
    Publication date: February 11, 2010
    Applicant: SMS DEMAG AG
    Inventors: Axel Weyer, Axel Stavenow
  • Publication number: 20090314455
    Abstract: The invention relates to a strand guiding device and a method for guiding a metal strip, in particular a metal strip that has not yet solidified right through, in a continuous casting installation. Known strand guiding devices comprise a segment frame and at least one pair of opposing guiding rollers, between which the metal strip is guided. At least one of the guiding rollers takes the form of at least two part-rollers 122, 124 arranged next to each other. The part-rollers are mounted on the segment frame 110 by means of two outer bearings 132, 134 and at least one common intermediate bearing 133.
    Type: Application
    Filed: August 15, 2007
    Publication date: December 24, 2009
    Applicant: SMS DEMAG AG
    Inventors: Markus Reifferscheid, Juergen Seidel
  • Patent number: 7617862
    Abstract: A strand-guiding roll for supporting and guiding cast metal strands in a continuous casting installation, having a central rotatable shaft and having at least one roll shell supported fixed against rotation on this shaft. To enable the strand-guiding roll to cope with the mechanical and thermal stresses, the roll shell is supported by support rings or by a support-ring sleeve on the shaft. An annular space, which is axially delimited by the support rings for the shell, is formed between the shaft and the roll shell. The annular space is a coolant conduit.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: November 17, 2009
    Assignee: Siemens Vai Metals Technologies GmbH & Co.
    Inventors: Josef Guttenbrunner, Thomas Starrermair, Günther Deibl
  • Patent number: 7594535
    Abstract: A twin roll caster with the casting roll having longitudinal cooling channels extending from one shoulder portion, adjacent a side dam, to the other shoulder portion, adjacent the opposite side dam. The molten metal pool is confined by side dams that may engage the end surfaces of the shoulder portions.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: September 29, 2009
    Assignee: Castrip, LLC
    Inventors: Hiroyuki Otsuka, Katsumi Nakayama, Shiro Osada, Hisahiko Fukase
  • Publication number: 20090165985
    Abstract: The invention relates to a strand guide roller 100 of a strand guide device for guiding a cast strand 200. The stand guide roller includes at least one first and one second sectional roller arranged next to each other, wherein the first sectional roller 110-1 has a roller journal 112-1 at its end surface adjacent to the second sectional roller. In addition, the strand guide roller includes a middle bearing 120-1, 120-2 between both sectional rollers 110-1, 110-2 for receiving and supporting the roller journal 112-1 of the first sectional roller. In order to improve strand guidance by increasing the bearing surface for the strand 200, it is suggested, according to the invention, that the first and second sectional rollers be connected with each other outside of the middle bearing by a plug-in connection. Then, according to the invention, the middle bearing is formed simply as unsplit separate bearing with an essentially smaller window width in comparison with a split bearing.
    Type: Application
    Filed: March 30, 2007
    Publication date: July 2, 2009
    Inventors: Axel Bekurts, Albrecht Girgensohn, Axel Stavenow, Erich Hovestaedt, Dirk Mangler
  • Publication number: 20080251229
    Abstract: In the case of a strand guiding roller with at least one roller shell and with hat least two supporting shafts, two supporting shafts being respectively connected in a rotationally fixed manner to a roller shell and each supporting shaft being rotatably supported in a supporting bearing, to achieve a type of construction that is simple and can withstand the high thermal and mechanical loading that occurs, it is proposed that the roller shell is connected in a rotationally fixed manner to the supporting shafts carrying it on both sides by shrink-fit connections or by press-fit connections.
    Type: Application
    Filed: October 2, 2006
    Publication date: October 16, 2008
    Inventors: Johann Poeppl, Guoxin Shan, Heinrich Thoene, Josef Watzinger, Franz Wimmer
  • Patent number: 7325586
    Abstract: An internally cooled strand-guiding roll for a continuous casting installation, having a central rotatable shaft and at least one roll shell supported fixed against rotation on the shaft. To make the strand-guiding roll better able to withstand the mechanical and thermal stresses, to ensure that it is suitable for large strand widths and to enable maintenance work to be carried out, the roll shell has coolant passages passing through it, and the coolant passages are arranged in the roll shell at a constant distance from the cylindrical roll shell outer surface of the roll shell and preferably at the area between the shaft and the roll shell. It is preferable for at least one water guide ring to be arranged between the roll shell and the central shaft.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: February 5, 2008
    Assignee: Voest-Alpine Industrieanlagenbau GmbH & Co.
    Inventors: Günther Deibl, Josef Guttenbrunner, Josef Lanschuetzer, Johann Poeppl, Guoxin Shan, Heinrich Thoene, Franz Wimmer
  • Patent number: 7281567
    Abstract: A casting roll for the continuous casting of thin metal strips, in particular steel strips in a double-roll or roll-in installation. The roll comprises a roll core with an external casing and an annular roll jacket with an internal casing. The jacket surrounds the core and is being shrunk onto the latter. To prevent migratory motion of the roll jacket in relation to the roll core, the surface of at least one of the opposing casings that form a shrinkage connection has protuberances and indentations, which are oriented at least partially in the direction of the casting roll axis and extend radially for at least 2 ?m.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: October 16, 2007
    Assignee: Voest-Alpine Industrieanlagenbau, GmbH & Co.
    Inventors: Gerald Hohenbichler, Gerald Eckerstorfer, Thomas Reiter, Jean-Michel Damasse
  • Patent number: 7178578
    Abstract: A continuous casting roll for the continuous casting of metal strip. The continuous casting roll has an essentially cylindrical core and a jacket, for example, made of a copper alloy, that is shrunk onto it. A relaxation zone is provided between the core and jacket. The relaxation zone, for example, having a radial extension of 1 mm, may be formed by a regional increase in the inside diameter of the jacket, and may be situated in the middle longitudinal range of the jacket.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: February 20, 2007
    Assignee: KM Europa Metal AG
    Inventors: Dietmar Kolbeck, Hans-Günter Wobker, Gerhard Hugenschütt
  • Patent number: 7152660
    Abstract: The invention relates to a rotary lead-through for the coolant inflow and outflow of a back-up and/or conveyor roller (1) which is held in a bearing arrangement at the end at least by means of bearing journals (10) located in bearing blocks (11), in particular in a continuous casting plant. To compensate for the axial movement and oscillating movement of the back-up and/or conveyor roller during operation, the bearing (9) at one end, to which the coolant inflow line and the coolant outflow line is connected, is a fixed axial bearing which is nevertheless able to absorb oscillating movement, while the other bearing is a detached axial bearing.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: December 26, 2006
    Assignee: ThyssenKrupp Stahl AG, Inc.
    Inventors: Erich Bergmans, Gerhard Grelewitz, Walter Krume
  • Patent number: 7096923
    Abstract: A segment roll for use in a continuous casting machine includes a number of roll segments axially spaced apart and supported in bearings on a non-rotating shaft. Each roll segment is a self-contained unit including a sleeve-shaped outer mantle, an internal sleeve disposed coaxially within the outer mantle, and a bearing assembly disposed radially between the outer mantle and the inner sleeve within an annular recess disposed at each end of the roll segment. Each bearing assembly is spaced from an inner envelope surface of the internal sleeve and includes a bearing and a seal, wherein the internal sleeve is in non-rotatable contact with the non-rotating sleeve.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: August 29, 2006
    Assignee: Aktiebolaget SKF
    Inventors: Magnus Axelsson, Jens Bode, Renato D'Uva, Patrik Costa, Filip Rosengren
  • Patent number: 7007737
    Abstract: A slab handling apparatus comprising a foundation structure, a plurality of longitudinally spaced buffer members positioned on the foundation structure, and a plurality of longitudinally spaced roller assemblies connected to the respective buffer members with a lost motion connection. The lost motion connections allow relative movement between the buffer members and the roller assemblies between a slab loading position in which the buffer members are supported on the foundation structure with upper edges thereof above the roller assemblies, whereby to allow the loading of a slab onto the upper edges without damage to the roller assemblies, and a slab slitting position in which the roller assemblies are above the upper edges of the buffer members, whereby to allow the roller assemblies to rollably support the slab to facilitate selective longitudinal adjustment of the slab to accommodate the slab slitting operation.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: March 7, 2006
    Assignee: Edw. C. Levy Co.
    Inventor: Barry J. Alexin
  • Patent number: 6957688
    Abstract: A roll apparatus provided at a continuous caster for transferring a cast piece to a predetermined location includes: at least three divided rolls arranged to align concentrically and in an axial direction thereof to constitute a roll forming a cast piece transfer path. At least one end portion of at least of the divided rolls is supported by a cylindrical roller bearing of a full roller type.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: October 25, 2005
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Takashi Masui, Youichi Numada, Toshikazu Kawakami, Keiichi Miyoshi
  • Patent number: 6913065
    Abstract: A device for continuously casting metals, especially steel, consists of multipleconsecutive segments (1) which each form the strand guide for casting strands of different widths (4), with roller pairs (2). The rollers are rotationally mounted on segment frames (5; 6), these segment frames (5; 6) each being braced with strand guide frames (10) on both sides. The aim of the invention is to reduce profile increases in the cross-section of the casting strand (4d) in the residual solidification area (4b), by providing a power mechanism (13) at least on the fixed side of the segment frame (5) of a segment (1), between the segment frame (5) and a transversal member (11) connecting the strand guide frames (10) on the two sides. Said power mechanism is situated approximately on the middle strand axis. The power transmission element (13a) of the power mechanism acts upon the segment frame (5), while its base (13b) is supported on the transversal member (11).
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: July 5, 2005
    Assignee: SMS Demag AG
    Inventors: Günter Kneppe, Joachim Schwellenbach, Hans Streubel
  • Patent number: 6904953
    Abstract: A cooling arrangement for the rolling stand of a continuous casting system for heavy supports is provided with spraying nozzles which can be acted upon by cooling liquid and compressed air through supply pipes laid laterally in a longitudinal direction of the rolling stand. Only two supply pipes for cooling liquid and compressed air respectively are assigned to each side of the rolling stand. The supply pipes are laid parallel to one another and are equipped with connection flanges on which connection plates can be mounted in a simple manner and, in turn, are fixedly connected with spraying nozzles. This further development permits a simple mounting and demounting of the spraying nozzles and ensures a precise alignment of the spraying jets with respect to the billet to be processed.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: June 14, 2005
    Assignee: Lechler GmbH
    Inventors: Juergen Frick, Roman Haap, Albert Fecht
  • Patent number: 6892793
    Abstract: The caster roll (10) is used in the manufacture of metal plate, strip, sheet, or foil. The caster roll (10) includes a cylindrical roll core (12) and at least one metal overlay (14) formed on the roll core (12). The at least one metal overlay (14) defines a plurality of cooling passages (34) for conducting a cooling medium through the at least one metal overlay (14) to cool the roll (10) during use. Additional metal overlays (16) may be formed on top of the at least one metal overlay. (14). The cooling passages (34) may also be formed in the roll core (12).
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: May 17, 2005
    Assignee: Alcoa Inc.
    Inventors: Joshua C. Liu, Teddy R. Creech
  • Patent number: 6883586
    Abstract: The invention relates to a strip guide for a strip casting unit, comprising at least two segments, in particular roller segments (1-4), each with a strip input side (2.1) and a strip output side (3.1) and a pair of roller supports, each with a number of support rollers (5), running along a support region. The roller supports are adjustable by means of, in particular, hydraulic adjuster units (8). According to the invention, the strip guide can be more flexibly embodied and the assembly and disassembly times reduced, whereby a mechanical connection (9) is provided between neighbouring segments (1-4) and, on fitting a cylinder pair (8.1-8.4) to the strip input side (2.1) of a segment (1-4), the adjustment movement occurs both on said side (2.1), as well as simultaneously on the strip output side (3.1) of a previous segment connected thereto. On fitting a cylinder pair (8.1-8.4) to the strip output side (3.1) of a segment (1 4), the adjustment movement thereof affects said side (3.
    Type: Grant
    Filed: January 19, 2002
    Date of Patent: April 26, 2005
    Assignee: SMS Demag AG
    Inventors: Axel Weyer, Peter Jonen
  • Publication number: 20040256077
    Abstract: The invention relates to a casting roller (1), for a double-roller continuous casting machine, in particular for the casting of a steel strip, comprising a cylinder sleeve (2) which may rotate about a fixed axle (5). Intermediate rings (7b, 7c, 7d) rotating with the cylinder sleeve (2) are arranged between the cylinder sleeve (2) and the axle (5), which are provided with radial pressure means (9), acting on the cylinder sleeve (2). The above comprise a pressure chamber (10), pressurised with a fluid pressure medium and acting on a pressure ring (24) fixed to the inner wall of the cylinder sleeve (2), which may be deformed in the radial direction by inductive heating or radiated heat. The external profile of the casting roller (1) may be globally altered or local fine adjustments made by pressurizing the pressure chamber (10) with the pressure medium, or by heating the pressure ring (24).
    Type: Application
    Filed: August 13, 2004
    Publication date: December 23, 2004
    Inventors: Heinrich Marti, Jacques Barbe, Benno Steiner, Hans Streubel
  • Publication number: 20040250981
    Abstract: The present invention relates to a casting roller for casting molten metal, particularly molten steel, having a roller body (2) made of a metallic material, onto which a coating (4) is applied, which is produced from a metal material having a greater hardness than the material of the roller body (2). The casting roller according to the invention has an increased service life and improved usage properties. This is achieved in that the coating (4), viewed over its thickness (D), has a lower hardness in its region bordering the roller body (2) than in the region of its free surface (5).
    Type: Application
    Filed: July 1, 2004
    Publication date: December 16, 2004
    Inventors: Guido Stebner, Werner Schuemers, Manfred Walter
  • Publication number: 20040129403
    Abstract: The caster roll (10) is used in the manufacture of metal plate, strip, sheet, or foil. The caster roll (10) includes a cylindrical roll core (12) and at least one metal overlay (14) formed on the roll core (12). The at least one metal overlay (14) defines a plurality of cooling passages (34) for conducting a cooling medium through the at least one metal overlay (14) to cool the roll (10) during use. Additional metal overlays (16) may be formed on top of the at least one metal overlay. (14). The cooling passages (34) may also be formed in the roll core (12).
    Type: Application
    Filed: November 10, 2003
    Publication date: July 8, 2004
    Inventors: Joshua C. Liu, Teddy R. Creech
  • Patent number: 6736189
    Abstract: The invention relates to a guide segment fitted with rollers on a continuous casting installation. In order to be able to accommodate as high mechanical loads as possible so as to accommodate the supporting force, at least some rollers are split up into three axially aligned roller bodies (4a, 5, 6). Only the outer roller bodies (4, 6) are axially fixed by means of their outer bearings designed as fixed bearings, whereas the middle roller body (5) is mounted in a floating manner. All the inner bearings (4b, 6a) of the outer roller bodies (4, 6) designed as movable bearings and the two bearings (8b, 9a) of the middle roller body are designed as movable bearings with high loading capacity, in particular as CARB bearings. The free axial mobility of the middle roller body (5) mounted in a floating manner is limited by stops (11, 12a, 12b, 13) designed as butting discs arranged between the end faces of the middle roller body (5) and the outer roller bodies (4, 6) lying opposite one another.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: May 18, 2004
    Assignee: ThyssenKrupp Stahl AG
    Inventors: Erich Bergmans, Gerhard Grelewitz, Walter Krume
  • Publication number: 20040035549
    Abstract: The invention relates to a casting roller for the casting of metal strip in the casting gap between two parallel casting rollers with variable separation and which may be cooled. A shaft (1) with a shell (2), surrounding the above at a separation therefrom and an external cover (3), the circumferential surface of which may be adjusted with regard to the crowning thereof during the casting operation, for altering the shape of the external cover, are disclosed. Annular pressure chambers (3c) are thus formed on the inner side of the shell (2) for hydraulically pumping the above up, which are formed between the shells and applied strips (13). The casting roller further comprises means for connecting the annular pressure chambers (3c) to an external hydraulic pressure generating system.
    Type: Application
    Filed: June 13, 2003
    Publication date: February 26, 2004
    Inventor: Klaus-Peter Eberwein
  • Patent number: 6634416
    Abstract: In a continuous-casting plant, the segments of the guide for the casting bar are replaced rapidly, at least in part, using a two-station system, at least one of which stations being mobile, so as to be able to align head on a platform provided with means for hooking and extracting the said guide with the structure containing the guide itself. Once this alignment is obtained, the guide is displaced from one station to the other, its segments are replaced, and the guide is brought back into the original position.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: October 21, 2003
    Assignee: Danieli & C Officine Meccaniche S.p.A.
    Inventors: Alfredo Poloni, Massimo Maurizio, Michele Meret
  • Patent number: 6619375
    Abstract: In a casting roll for a thin strip casting plant, comprising an essentially cylindrical core (1), a mantle (2) of copper or a copper alloy optionally being provided with at least one outside layer (5), an internal cooling system (4) as well as an adjusting means (8, 17, 20) for adjusting the outline of the casting roll in its front-end regions (7), the adjusting means for the purpose of levelling out thermally caused crowns with the aid of constructively simple means has in each front-end region of the casting roll a supporting disk (17) adjustable in the longitudinal direction of the casting roll and engaging a ring (8) radially surrounding the supporting disk (17) and abutting the mantle (2) from the inside in its front-end regions, which ring is fixedly attached with regard to the core (1) in the longitudinal direction of the casting roll (Fig.).
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: September 16, 2003
    Assignee: Voest-Alpine Industrieanlagenbau GmbH
    Inventors: Gerald Hohenbichler, Armin Schertler, Thomas Reiter, Günther Staudinger
  • Publication number: 20030136543
    Abstract: A rolling contact bearing arrangement for two axially adjacent rollers, e.g. for use in a continuous casting plant. The rollers are each mounted via two rolling contact bearings, wherein the two central adjacent rolling contact bearings are arranged within the hollows at the inner ends of the rollers. The rotating bearing outer ring bearing the roller and the stationary bearing inner ring being supported by a common axle journal for both bearings, which is held in a supporting block. This arrangement enables the distance between two axially adjacent rollers to be minimized and the cast material or slab may sag less at this point.
    Type: Application
    Filed: January 22, 2003
    Publication date: July 24, 2003
    Applicant: FAG Kugelfischer Georg Schafer AG
    Inventors: Leo Eisenmann, Karl-Heinz Back
  • Patent number: 6568460
    Abstract: A method and an apparatus for adjusting the profile of a continuously cast slab, particularly of a thin slab, wherein the profile is determined in accordance with given requirements with respect to its camber or wedge shape by the gap geometry of strand guide rollers of the guide segments of a strand guiding system. The method includes determining the adjustment of the strand guide rollers at least in the area of the residual solidification and the adjusting forces of adjusting means required for this purpose in such a way that a predeterminable desired value for the slab profile can be adjusted for any characteristic state of operation.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: May 27, 2003
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Günter Kneppe, Hans Streubel
  • Publication number: 20030075302
    Abstract: The invention relates to a guide segment fitted with rollers on a continuous casting installation. In order to be able to accommodate as high mechanical loads as possible so as to accommodate the supporting force, at least some rollers are split up into three axially aligned roller bodies (4a, 5, 6). Only the outer roller bodies (4, 6) are axially fixed by means of their outer bearings designed as fixed bearings, whereas the middle roller body (5) is mounted in a floating manner. All the inner bearings (4b, 6a) of the outer roller bodies (4, 6) designed as movable bearings and the two bearings (8b, 9a) of the middle roller body are designed as movable bearings with high loading capacity, in particular as CARB bearings. The free axial mobility of the middle roller body (5) mounted in a floating manner is limited by stops (11, 12a, 12b, 13) designed as butting discs arranged between the end faces of the middle roller body (5) and the outer roller bodies (4, 6) lying opposite one another.
    Type: Application
    Filed: September 27, 2002
    Publication date: April 24, 2003
    Inventors: Erich Bergmans, Gerhard Grelewitz, Walter Krume
  • Patent number: 6533023
    Abstract: A pinch roll assembly that may be used for feeding hot metal strip comprises a pair of parallel pinch rolls. At least one of the rolls comprises a copper or copper alloy tube providing the external peripheral roll surface and internal water cooling passages to cool the cylindrical tube by flowing water through the passages. The copper or copper alloy tube is fitted to a cylindrical arbor formed with end shafts for mounting the roll in journal bearings. Shaft is provided with a rotary drive coupling and shaft is fitted with a rotary water coupling for flow of cooling water to the water flow passages.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: March 18, 2003
    Assignee: Castrip LLC
    Inventors: Hisahiko Fukase, Hiroaki Kuwano, Heiji Kato
  • Patent number: 6527042
    Abstract: The roll body (110) of the invention for a continuous casting machine is able to carry a cylindrical shell (111) in its central part and includes a cooling circuit (200), the circuit having at least one cooling liquid supply conduit (30), at least one cooling liquid evacuation conduit (40), at least one distribution collector (70), at least one evacuation collector (80), at least one distribution pipe (50, 60) connecting each collector to the corresponding conduit, and a plurality of ring channels (90) connecting the supply and evacuation collectors, the collectors and ring channels being used to place the cooling liquid circulating in the circuit in contact with the inner surface of the shell (111) such as to cool the shell, and is characterized in that the collectors (70, 80) are arranged such as to produce both in the peripheral direction and in the longitudinal direction an alternation of distribution collectors (70) and evacuation collectors (80).
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: March 4, 2003
    Assignee: Pechiney Rhenalu
    Inventors: Jacques Griffon, Claude Breysse
  • Patent number: 6484793
    Abstract: In order, in a guide roller for continuous-casting plants, which is formed by a plurality of aligned roller portions, to avoid the creeping movements of the guide roller in the axial direction and thermally induced distortions in it, it is proposed that a roller portion adjacent on both sides of roller portions either be provided at its two ends with roller journals carrying support bearings, and these roller journals engage into recesses of the adjacent roller portions, or be provided at its two ends with recesses, and roller journals, having support bearings, of the adjacent roller portions engage into these recesses.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: November 26, 2002
    Assignee: Voest-Alpine Industrieanlagenbau GmbH
    Inventor: Werner Scheurecker
  • Publication number: 20020170701
    Abstract: A twin-drum continuous casting apparatus for casting a metal sheet (4) by supplying molten metal (3) to a pouring basin formed by a pair of cooling drums (1) rotating in opposite directions, and side gates (2), to cool the molten metal (3) by contact with surfaces of the cooling drums (1), thereby forming a solidified shell. The cooling drum (1) is formed from a drum body (11) having shaft portions at opposite end portions, and a drum sleeve (10) fitted on an outer peripheral portion of the drum body (11). Also, means is provided for preventing various adverse influences due to differences in thermal expansion of constituent members of the drum body (11) during casting. Thus, the reliability of the apparatus is increased, and the quality of casting is improved.
    Type: Application
    Filed: July 5, 2002
    Publication date: November 21, 2002
    Inventors: Keiichi Yamamoto, Ritsuo Hashimoto, Mitsuo Tani, Kazutoshi Yokoo, Jyoji Yusa, Kunimasa Sasaki, Katsuyoshi Miyake, Katsuyuki Isogami, Mamoru Yamada, Tsuyoshi Tanaka, Takashi Arai, Tadahiro Izu, Keiji Tsunenari, Kazuto Yamamura, Hiroshi Izaki
  • Publication number: 20020153122
    Abstract: A drawing-device mechanism includes an endless drawing device and two wheels, around which the drawing device is partially looped. One wheel has a locally fixed axis of rotation and the other wheel is adjustable within an adjustment range. A drawing-device tensioner produces pretensioning. During an adjustment of the second wheel, with an increase in the center-to-center distance in a first case and with a reduction in the center-to-center distance in a second case, the drawing-device pretensioning remains approximately unchanged as a result of a reduction in the looping of the drawing device around the drawing-device tensioner in the first case and an increase in the looping of the drawing device around the drawing-device tensioner in the second case, absent any change in location of the drawing-device tensioner. A machine such as a sheet-processing rotary printing machine has the drawing-device mechanism.
    Type: Application
    Filed: March 28, 2002
    Publication date: October 24, 2002
    Inventor: Carsten Kelm
  • Publication number: 20020112841
    Abstract: In a casting roll for a thin strip casting plant, comprising an essentially cylindrical core (1), a mantle (2) of copper or a copper alloy optionally being provided with at least one outside layer (5), an internal cooling system (4) as well as an adjusting means (8, 17, 20) for adjusting the outline of the casting roll in its front-end regions (7), the adjusting means for the purpose of levelling out thermally caused crowns with the aid of constructively simple means has in each front-end region of the casting roll a supporting disk (17) adjustable in the longitudinal direction of the casting roll and engaging a ring (8) radially surrounding the supporting disk (17) and abutting the mantle (2) from the inside in its front-end regions, which ring is fixedly attached with regard to the core (1) in the longitudinal direction of the casting roll.
    Type: Application
    Filed: March 1, 2002
    Publication date: August 22, 2002
    Inventors: Gerald Hohenbichler, Armin Schertler, Thomas Reiter, Gunther Staudinger