Roller Patents (Class 164/442)
  • Patent number: 11519783
    Abstract: A spectral property acquisition apparatus includes: a first conveying device to convey an object in predetermined conveying direction; a color data acquisition device including a plurality of spectroscopic sensors in the conveying direction, the plurality of spectroscopic sensors receive light emitted and reflected by the object to acquire color data on the object; a second conveying device to convey the color data acquisition device in a direction orthogonal to the conveying direction; and circuitry to estimate a spectral property of the object based on the color data. The circuitry controls the first conveying device so as to generate predetermined tension for the object in a color data acquisition area in which the color data on the object is acquired.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: December 6, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yusuke Taneda, Kohei Shimbo, Yoichi Kubota
  • Patent number: 11465197
    Abstract: A device is disclosed for coupling a coolant supply and/or coolant drainage to a roll, especially in a continuous casting installation, wherein the roll includes a journal, which is mounted rotatably in a bearing block, and a lateral recess, extending in the axial direction, and at least one roll cooling channel, through which a coolant can pass. The device includes at least one coolant channel, which can be brought into fluidic connection with the roll cooling channel on the journal side; and a sealing unit for sealing the fluidic connection between the coolant channel and the roll cooling channel, including an inner module and an outer module. The inner module includes a hollow cylindrical element, which can be inserted into the lateral recess of the journal, and which, when viewed in the axial direction, has no flange on the outer side of the journal.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: October 11, 2022
    Assignee: SMS GROUP GMBH
    Inventors: Axel Stavenow, Alexander Raile, Michael Steuten, Tobias Wissen
  • Patent number: 11305339
    Abstract: A roll line unit for a continuous casting apparatus includes a roll mantle having two ends and a non-rotatable shaft including a coolant line. The roll mantle is rotatably mounted on the non-rotatable shaft by means of a first bearing located in a first end region of the roll mantle and a second bearing located in a second end region of the roll mantle. The roll mantle includes at least one coolant channel having at least one fluid inlet that is arranged to be in fluid communication with the coolant line. The roll line unit includes two outer seals located on an axially outward side of each of the first and second bearings, whereby the outer seals and the first and second bearings are located axially inwards of the ends of the roll mantle.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: April 19, 2022
    Inventors: Mats Johansson, Erik Mitchell
  • Patent number: 11298744
    Abstract: Disclosed are a continuous-curvature convex roll for continuously casting a bloom, and a manufacturing method therefore. An outer contour curve of a working portion of a body of the continuous-curvature convex roll contains a first straight-line segment (AB), a first transition curve segment (BC), an intermediate straight-line segment (CD), a second transition curve segment (DE) and a second straight-line segment (EF). The BC, the AB, and the CD have continuous first-order derivatives, continuous second-order derivatives, and continuous curvatures, thus forming a first transition curve with a continuous curvature. The BC and the DE are mirror-symmetrical. The continuous-curvature convex roll can uniformly deform a blank cast in a deformation area, thereby reducing cracks. The transition curve of the convex roll can be reduced, thereby being capable of further reducing a rolling pressure and the withdrawal resistance.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: April 12, 2022
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Rongjun Xu, Junjiang Liu, Genjie Wan, Chengbin Li, Xiangchun Liu, Qingyu Meng
  • Patent number: 11135647
    Abstract: A twin roll casting system where the casting rolls have a nip between the casting rolls, each roller having a circumference and a rotational period. The casting roll controller adjusts the nip between the casting rolls in response to control signals. The sensor measures at least one parameter of the cast strip. The ILC controller receives strip measurement signals from the sensor and provides control signals to the casting roll controller. The ILC controller includes an ILC control algorithm to generate the control signals based on the strip measurement signals and a time delay estimate based on circumference, rotational period, and a length of cast strip between the nip and the sensor to compensate for an elapsed time from the cast strip exiting the nip to being measured by the cast strip sensor.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: October 5, 2021
    Assignee: NUCOR CORPORATION
    Inventors: Florian Maurice Browne, III, George T. C. Chiu, Neera Jain Sundaram, Harold Bradley Rees
  • Patent number: 10807157
    Abstract: A spray apparatus for cooling a metal strand in a continuous casting machine, wherein at least one multiple-nozzle head and at least one switching valve are provided, wherein the multiple-nozzle head has at least a first and a second nozzle, wherein the switching valve is arranged upstream of the multiple-nozzle head, and wherein the switching valve is flow-connected to all the second nozzles in the multiple-nozzle head, in order to enable or to shut off a supply of spray liquid to all the second nozzles.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: October 20, 2020
    Assignee: LECHLER GMBH
    Inventors: Siegfried Foshag, Jürgen Frick
  • Patent number: 10549342
    Abstract: A guiding unit for slabs comprising at least two rolls (10, 10?) connected to each other and adapted to rotate along a same axis X; wherein each roll comprises a first tubular element (12) and a second tubular element (5), which is external and coaxial to axis X and to the first tubular element and removable from said first tubular element; wherein cooling channels (3, 30) are provided in each roll between said first tubular element and said second tubular element for the passage of a coolant liquid; wherein each roll comprises a respective hub at its two ends; and wherein each hub is provided with cavities communicating with the cooling channels of the respective roll so as to define a path for the coolant liquid from a first end to a second end of the guiding unit crossing said at least two rolls.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: February 4, 2020
    Assignee: Danieli & C. Officine Meccaniche S.P.A.
    Inventors: Guido Carnelutti, Fabio Vecchiet, Pierluigi Fabbro, Stefano Puzzo, Riccardo Conte
  • Patent number: 10226801
    Abstract: The present invention is a casting product reduction apparatus that applies reduction to a casting product drawn from a mold with a sufficient reduction force and thereby can surely decrease center segregation and porosity and suppress occurrence of internal cracks so as to manufacture a high-quality casting product and includes: a pair of casting product press rolls that hold and press the casting product therebetween; backup rolls that support the casting product press rolls; and a pair of frames arranged to face each other, wherein three or more sets of the casting product press roll and the backup roll are arranged in a casting product drawing direction on each of the frames, and wherein a reduction means that decreases and increases a distance between the frames is provided at two or more places on the pair of frames.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: March 12, 2019
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Shuntaro Imai, Yasuo Maruki, Norimasa Yamasaki, Yukihiro Matsuoka, Satoshi Senoo, Masanobu Hayama
  • Patent number: 10150159
    Abstract: An investment casting apparatus includes a furnace having an opening, a mold support, and a multi-axis actuator connected with the mold support and configured to retract the mold support from the opening with multiple-axis motion. An investment casting method includes withdrawing, with multiple-axis motion, a mold through the opening of the furnace to solidify a molten metal- or metalloid-based material in the mold. The apparatus and method can be used to form a cast article that has a body formed of the metal- or metalloid-based material. The body has a multi-textured, single crystal microstructure.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: December 11, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Steven J. Bullied, David Ulrich Furrer, John Joseph Marcin, Venkatarama K. Seetharaman
  • Patent number: 9796017
    Abstract: The present invention relates to a water-cooled handling roll (100) for handling a load (50), in particular a thin slab, in a furnace for temperature heating, maintaining and for buffering, arranged between casting and roughing, in a continuous casting and rolling process for thin carbon steel slabs. The roll (100) comprises a first internally hollow shaft (110), which is coated by an insulating and/or refractory material and a plurality of wheels (25) connected in stably fixed manner to an outermost surface (111) of the first shaft (110) to handle and support the load (50). According to the invention, the roll (100) also comprises a second shaft (120) arranged within an inner cavity of the first shaft (110) in position coaxial to the first shaft (110) and so as to define a gap (30) between the first shaft (110) and said second shaft (120). The roll (100) further comprises cooling water circulation means housed at least in part within said second shaft (120).
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: October 24, 2017
    Assignees: Danieli & C. Officine Meccaniche S.P.A., Danieli Centro Combustion S.P.A.
    Inventors: Claudio Leoncini, Matteo Mazza, Mirco Pedemonte
  • Patent number: 8955577
    Abstract: An apparatus for producing elongated rolled products contains a steelmaking station for producing liquid metal having at a first production rate, a rolling mill having a second production rate, and a continuous casting station located between the steelmaking station and the rolling mill. The continuous casting station contains at least two casting lines, each line being operable to produce elongated intermediate products. A first casting line is directly aligned with the rolling mill to feed the rolling mill with casted products, and at least one second casting line not aligned with the rolling mill and not feeding the rolling mill. The apparatus further contains a varying device for varying simultaneously the production rate of the first casting line and the production rate of the at least one second casting line depending on a difference between the steelmaking station production rate and the rolling mill production rate.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: February 17, 2015
    Assignee: Siemens S.p.A.
    Inventors: Ezio Colombo, Ugo Zanelli
  • Patent number: 8950466
    Abstract: A method for producing elongated rolled products uses a steelmaking station for producing liquid metal at a first production rate, a rolling mill having a second production rate, and a continuous casting station located between the steelmaking station and the rolling mill. The continuous casting station contains at least two casting lines, each line being operable to produce elongated intermediate products. A first casting line is directly aligned with the rolling mill to feed the rolling mill with casted products, and at least one second casting line not aligned with the rolling mill and not feeding the rolling mill. The method further uses a varying device for varying simultaneously the production rate of the first casting line and the production rate of the at least one second casting line depending on a difference between the steelmaking station production rate and the rolling mill production rate.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: February 10, 2015
    Assignee: Siemens S.p.A.
    Inventors: Ezio Colombo, Ugo Zanelli
  • Patent number: 8863819
    Abstract: A continuous casting device including at least a crystallizer suitable for casting a metal product, and a plurality of guide and containing segments with rolls, the function of which is to accompany the cast product exiting from the crystallizer. The device includes, an extension of or in an intermediate position to one or more of the guide and containing segments with rolls, one or more guide and containing segments of the mixed type with panels and rolls, each including one or more guide rolls disposed on at least one side of the product and insulated and/or reflecting and/or heated panels disposed on the opposite side of the product, so as to reduce the loss of temperature of the cast product in transit.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: October 21, 2014
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventors: Gianpietro Benedetti, Andrea Carboni, Paolo Bobig
  • Patent number: 8820392
    Abstract: A method for adjusting a roll segment of a strand guide of a slab-casting installation against a strand, wherein the roll segment has an upper and a lower roll support that each have an adjusting element for adjusting the two roll supports relative to each other. The method includes individual control of the individual adjusting elements, wherein the actual profile of the strand, including the heights of the right and left lateral edges of the strand, is detected and compared with a set profile that includes a predetermined set height, which is the same for the right and left lateral edges, and the individual adjusting elements of the roll segment are individually controlled based on the control deviation that results from the comparison so that the actual profile is adapted to the set profile, including equalization of the heights of the right and left lateral edges of the strand.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: September 2, 2014
    Assignee: SMS Siemag Aktiengsellschaft
    Inventors: Axel Weyer, Christian Stolp, Hans Esau Klassen
  • Patent number: 8746323
    Abstract: A continuous casting furnace is configured for efficiently continuously casting ingots, including titanium alloy ingots. The furnace is configured with an internal cutter for cutting an ingot within the furnace interior chamber. The furnace typically includes a first interior chamber in which a continuous casting mold is disposed and a withdrawal chamber which is separable from the first interior chamber to facilitate withdrawal of finished ingots therefrom while casting continues within the first chamber.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: June 10, 2014
    Assignee: RTI International Metals, Inc.
    Inventors: Michael P. Jacques, Kuang-O Yu
  • 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
  • Patent number: 8505611
    Abstract: In a twin roll continuous caster, the contour of the strip cast is controlled during casting by regulating the temperature of temperature-regulating medium circulated through temperature-regulating passages in the casting rolls spaced inward of cooling passages in the circumferential portion adjacent the casting surfaces. The temperature-regulating passages may be positioned in the circumferential portion or in the inner portion of the casting rolls, or both.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: August 13, 2013
    Assignee: Castrip, LLC
    Inventor: Hiroyuki Otsuka
  • Publication number: 20130139993
    Abstract: A continuous casting device including at least a crystallizer suitable for casting a metal product, and a plurality of guide and containing segments with rolls, the function of which is to accompany the cast product exiting from the crystallizer. The device includes, an extension of or in an intermediate position to one or more of the guide and containing segments with rolls, one or more guide and containing segments of the mixed type with panels and rolls, each including one or more guide rolls disposed on at least one side of the product and insulated and/or reflecting and/or heated panels disposed on the opposite side of the product, so as to reduce the loss of temperature of the cast product in transit.
    Type: Application
    Filed: May 17, 2011
    Publication date: June 6, 2013
    Applicant: DANIEL & C. OFFICINE MECCANICHE SPA
    Inventors: Gianpietro Benedetti, Andrea Carboni, Paolo Bobig
  • Patent number: 8387681
    Abstract: A strand guiding apparatus includes a plurality of pairs of rollers arranged along a moving direction of a strand, a plurality of drive motors for generating driving forces to drive the pairs of rollers, a plurality of worm reducers for transmitting the driving forces of the drive motors to the pairs of rollers while reducing the rotational speed of the drive motors, each worm reducer having a worm extending in a direction orthogonal to an axis of the corresponding roller, and operable to transmit a load occurring at the roller to the corresponding drive motor, and a control unit for controlling the respective rotational speeds of the rollers and/or the respective driving forces of the drive motors based on the load to the drive motors. The reliable control for drive rollers can be attained to have a proper rotational speed without causing a reduction in surface quality and chatter in a strand guiding apparatus for continuous casting equipment using worm reducers.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: March 5, 2013
    Assignee: Kobe Steel, Ltd.
    Inventors: Hiroshi Kawaguchi, Fumiki Asano, Kazunori Okada
  • Patent number: 8387682
    Abstract: In a twin roll continuous caster, the contour of the strip cast is controlled during casting by regulating the temperature of temperature-regulating medium circulated through temperature-regulating passages in the casting rolls spaced inward of cooling passages in the circumferential portion adjacent the casting surfaces. The temperature-regulating passages may be positioned in the circumferential portion or in the inner portion of the casting rolls, or both.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: March 5, 2013
    Assignee: Castrip, LLC
    Inventor: Hiroyuki Otsuka
  • Patent number: 8342231
    Abstract: A cast strip withdrawing apparatus includes a plurality of pairs of rolls, and retains and withdraws a dummy bar via a fixed-side roll and pressure-side roll, which face each other, of each of these pairs of rolls. Each of the pressure-side rolls includes a fluid pressure cylinder imparting a dummy bar retaining pressure. A source pressure side fluid line supplying fluid pressure to these fluid pressure cylinders includes: a first pressure-reduction unit, a pressure drop detection unit, a line isolating unit installed on a source pressure side of the pressure drop detection unit, and a bypass unit.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: January 1, 2013
    Assignee: Kobe Steel, Ltd.
    Inventors: Hiroshi Kawaguchi, Fumiki Asano
  • 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: 8186422
    Abstract: A method for the continuous casting of thin metal strip in a continuous casting installation, in which metal is discharged vertically downward from a mold, the metal strip is deflected from the vertical direction to the horizontal direction, and the metal strip is supported and/or conveyed and/or plastically deformed by a number of pairs of drive rolls. At least one pair of drive rolls plastically deforms the metal strip without significantly changing the mean thickness of the metal strip, namely with a change in the mean thickness of the metal strip of less than 5%, such that the deformation in the pairs of drive rolls produces material flow exclusively in the direction transverse to the direction of conveyance of the metal strip.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: May 29, 2012
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Wolfgang Hennig, Holger Beyer-Steinhauer, Christian Bilgen
  • 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
  • Publication number: 20120043048
    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: Application
    Filed: October 29, 2011
    Publication date: February 23, 2012
    Inventors: Markus Reifferscheid, Juergen Seidel
  • Publication number: 20120043047
    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: Application
    Filed: September 3, 2010
    Publication date: February 23, 2012
    Applicant: SMS CONCAST AG
    Inventors: Georg Springmann, Dirk Hasselbrink, Dieter Warmbier, Matthias Nobbe, Christian Dratva
  • 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: 8047263
    Abstract: The invention relates to a device for the horizontal continuous strip casting of steel, especially steel with high manganese content, for producing a pre-strip with a thickness ?15 mm. The device includes a tundish containing the melt, a primary cooling zone having two deflection pulleys and a revolving cooled conveyor belt, and a secondary cooling zone which follows the primary cooling zone and has a housed roller table. A guide element having at least one roller is hereby arranged at the end of the primary cooling zone and before the start of the secondary cooling zone.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: November 1, 2011
    Assignee: Salzgitter Flachstahl GmbH
    Inventors: Karl-Heinz Spitzer, Hellfried Eichholz, Markus Schäperkötter, Guido Bormann
  • 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: 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
  • 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: 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
  • Publication number: 20100000703
    Abstract: The invention relates to a device for the horizontal continuous strip casting of steel, especially steel with high manganese content, for producing a pre-strip with a thickness ?15 mm. The device includes a tundish containing the melt, a primary cooling zone having two deflection pulleys and a revolving cooled conveyor belt, and a secondary cooling zone which follows the primary cooling zone and has a housed roller table. A guide element having at least one roller is hereby arranged at the end of the primary cooling zone and before the start of the secondary cooling zone.
    Type: Application
    Filed: December 15, 2005
    Publication date: January 7, 2010
    Applicant: SALZGITTER FLACHSTAHL GMBH
    Inventors: Karl-Heinz Spitzer, Hellfried Eichholz, Markus Schäperkötter, Guido Bormann
  • Patent number: 7631685
    Abstract: Pinch roll apparatus has a pair of pinch rolls, each having a diameter between 300-1500 millimeters, positioned to form a nip through which metal strip can be continuously fed. The pinch rolls are positioned one above the other with the axes of the pinch rolls offset in the direction of travel of the strip, with the upper pinch roll offset positioned between 10 and 130 mm downstream of the direction of travel of the strip through the pinch rolls. A rotational drive counter-rotates the pinch rolls to cause strip to pass through the nip of the pinch rolls. A tilt drive tilts the upper pinch roll by a tilt between 0.5 and 5.0 mm to control steering of the strip passing through the pinch rolls. The steering of the tilt drive may be automatically controlled through a controller actuated by a sensor.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: December 15, 2009
    Assignee: Nucor Corporation
    Inventors: Jay Jon Ondrovic, Richard Britanik, Tino Domanti, Glen Wallace
  • 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
  • Publication number: 20090183851
    Abstract: A process for continuous casting of slabs or other metal products of elongate cross section, for example made of steel, in which a molten metal is poured into a cooled mold, and the externally solidified product is continuously extracted from the mold and guided in a secondary cooling zone downstream of the mold. To obtain a cast product exhibiting predominantly equiaxed solidification, the product extracted from the mold is subjected to electromagnetic stirring in segment zero of the secondary cooling zone by at least two stirrer-rolls incorporated into the segment zero.
    Type: Application
    Filed: July 7, 2006
    Publication date: July 23, 2009
    Applicant: ROTELEC
    Inventors: Siebo Kunstreich, Dominique Yves
  • 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: 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: 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: 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: 6945311
    Abstract: In a method for vertical continuous casting of a steel band, a strand (11) of a parallelogram-like cross section is cast at first in a revolving chill-mold (2) and is thereafter transferred from said initial cross section with completely solidified longitudinal edges (10) and liquid core into a band (1) with plane-parallel cross section, this occurring in such a way that an already solidified shell (9) of the strand (11) which becomes increasingly thicker by cooling is increasingly compressed in the casting direction in a forming device (4) without upsetting deformation of the completely solidified longitudinal edges (10). In order to provide advantageous conditions it is proposed that after the compression into a band (1) the strand (11) with a still liquid core (16) is guided during the complete solidification of the core merely in a forming gap with a constant width corresponding to the thickness of the completely solidified longitudinal edges (10) and is calibrated in this process.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: September 20, 2005
    Inventor: Anton Hulek
  • 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: RE41553
    Abstract: Twin roll strip caster comprising parallel casting rolls one of which is mounted on moveable roll supports which allow it to move bodily toward and away from the other roll. A pair of roll biasing units comprising compression act on roll supports to bias the moving roll toward the other roll. Biasing units comprise compression springs acting on roll supports through thrust transmission structures and thrust reaction structures. The positions of thrust reaction structures are set by hydraulic cylinder units operable to vary the position of each reaction structure to replicate movements of the respective thrust transmission structure so as to maintain a constant compression of the biasing springs regardless of lateral movements of the roll supports.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: August 24, 2010
    Assignee: Castrip LLC
    Inventors: Nikolco S. Nikolovski, Harold Roland Kaul