Roller Or Roller-like Tool-element Of Particular Configuration Patents (Class 72/252.5)
  • Publication number: 20090217728
    Abstract: To provide a roll, a rolling mill and rolling method capable of not only effectively correcting the plate crown of a material to be rolled but also reducing the edge drop and preventing a roll from damage caused by the increase of the local line pressure between the rolls. A roll crown is formed by a continuous curve having a local maximum point and a local minimum value point where the central region held between the local maximum point and the local minimum point represents one function and the end region from the local maximum point to the nearer roll end represents another function having an inclination of steeper gradient (or having a radius decreasing more sharply toward the roll end) than that of the extension of the function in the central region.
    Type: Application
    Filed: May 1, 2007
    Publication date: September 3, 2009
    Applicant: JP STEEL PLANTECH CO.
    Inventor: Tanehiro Kikkawa
  • Publication number: 20090205390
    Abstract: A cold rolling method for manufacturing a profile (16) from a one-piece rolling stock in form of initial material (6; 56) with a plurality of rolls (26, 36, 46; 6, 76, 86) each having a deforming region (28, 38, 48; 68, 78, 88) for deforming the initial material (6; 56) includes bending the initial material (6; 56) with formation at least one folded section (8) extending in a rolling direction of the initial material (6; 56), and deforming the initial material (6; 56) in its width direction with reduction of its thickness at least in one region.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 20, 2009
    Inventors: Fritz Hermann, Juergen Gebhard, Christoph Wiedner, Erwin Karle, Frank Bertram, Frank Jackel
  • Publication number: 20090202856
    Abstract: The present invention relates to a metallic molded sheet including a metallic sheet having first ridges continuously formed along a first direction and second ridges continuously formed along a second direction which is perpendicular to the first direction, in which the metallic molded sheet has cross-sectional shapes along the first direction and the second direction, each having an identical thickness and continuing sinusoidally, and the metallic molded sheet has a planar shape being a corrugated surface in which ridge lines of first waveforms along the first direction and ridge lines of second waveforms along the second direction perpendicularly intersect each other.
    Type: Application
    Filed: February 5, 2009
    Publication date: August 13, 2009
    Inventors: Akinao Hiraoka, Motonori Kondoh, Tadakatsu Kato, Takahiro Niwa
  • Patent number: 7571542
    Abstract: A method of forming a roll for embossing aluminum sheet, and the associated roll, the method comprising subjecting a surface of a steel roll to at least the steps of, in order: blasting treatment, electrolytic treatment with 1,000 to 20,000 C/dm2 of electricity in which the steel roll is used as the anode, and chromium plating treatment. An aluminum sheet embossing roll produced by the method of the present invention has on the surface thereof peaks, or asperities, which are of uniform height and very numerous. As a result, aluminum sheets obtained using such a roll, when employed as lithographic printing plate supports, have excellent printing characteristics, particularly a long press life and a high sensitivity.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: August 11, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Atsuo Nishino, Hirokazu Sawada, Akio Uesugi
  • Publication number: 20090165903
    Abstract: In the present invention, there is provided a fabrication method of a material having an ultrafine grained structure characterized by including a step of providing a metal or an alloy having a stacking fault energy no greater than 50 mJ/mm2 and a step of introducing deformation twins having a twin interval no greater than 200 nm into structures of the metal or the alloy by processing the metal or the alloy. Further, according to this method, a material having an ultrafine grained structure characterized in that twins are included in a crystal structure and the twins have a twin interval no greater than 200 nm.
    Type: Application
    Filed: April 3, 2007
    Publication date: July 2, 2009
    Inventor: Hiromi Miura
  • Publication number: 20090151414
    Abstract: Methods and apparatus for controlling a hem profile in roll-forming processes are described. An example roll-forming apparatus includes a first plurality of work rolls to form a first hem on a material and a second plurality of work rolls. One of the second plurality of work rolls is adjustable relative to an opposing work roll and to the first plurality of work rolls to adjustably control a profile of the first hem.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 18, 2009
    Inventors: Verne D. Voth, Gregory S. Smith
  • Patent number: 7493685
    Abstract: A method and apparatus for fabricating arcuate sheet metal components for HVAC duct systems passes an elongate straight preformed strip of metal between a pair of rollers to deform the strip to form arcuate sheet metal duct components.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: February 24, 2009
    Inventor: Robert Issagholian-Havai
  • Publication number: 20080276680
    Abstract: Disclosed is a milling device for inline-rolling a steel band which is produced especially by means of a twin-roll continuous casting process. Said milling device comprises at least two rolling units (20, 30) with working rolls (21, 31) that mill the steel band (11) and support rolls (22, 32) which support said working rolls. The working rolls and support rolls are rotatably mounted in bearing housings (23, 24, 33, 34). At least two rolling units (20, 30) are disposed successively in a monolithic or multipiece frame structure (15) such that the rolling temperatures between the rolling units differ only slightly while a simple and inexpensive design is created.
    Type: Application
    Filed: February 23, 2006
    Publication date: November 13, 2008
    Inventors: Heinrich Marti, John Turley
  • Patent number: 7434435
    Abstract: The invention relates to a method and a device for applying an adjustable tensile-stress distribution, in particular in the edge regions during the cold-rolling of metal strips (16), in particular metal foil, in order to reduce the risk of an excessive build-up of tension and cracks at the edges of the strip, which can lead as a negative consequence to cracks in the strip and to a reduction in production, and in order to improve the surface of the strip and its planarity, even for a relatively high strip displacement speed, and also to reduce strip trimming widths.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: October 14, 2008
    Assignee: SMS Demag AG
    Inventors: Hans-Peter Richter, Hartmut Pawelski, Ludwig Weingarten, Thorsten Bode, Jürgen Klöckner, Ralf Ohrndorf
  • Publication number: 20080245123
    Abstract: A rolling monoblock comprises: a first block (B1) of rolling stands (G1-Gm) and a second block (B2) of rolling stands (Gm+1-Gn). According to the invention, an annular path (A) of cooling of the rolled section (11) is foreseen between the two blocks (B1, B2).
    Type: Application
    Filed: March 13, 2006
    Publication date: October 9, 2008
    Applicant: VIA POMINI S.R.L.
    Inventor: Roberto Formentin
  • Patent number: 7430887
    Abstract: In the case of a measuring roller for determining flatness deviations when handling material in strip form, for example when rolling metal strip, the stress distribution is measured over the width of the strip with the aid of piezoelectric sensors, which are arranged in longitudinal recesses of a solid roller at a distance from the casing surface and are wedged there
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: October 7, 2008
    Assignee: VDEh-Betriebsforschungsinstitut GmbH
    Inventors: Gerd Mücke, Eberhard Neuschütz
  • Patent number: 7421873
    Abstract: A rolling apparatus including a first work roll and a second work roll cooperative with the first work roll for rolling a metal blank plate to manufacture a metal product of miscellaneous cross section including a plate portion having one side in the form of a flat surface and a plurality of ridges projecting upright from the other side of the plate portion integrally therewith and spaced from one another. The first work roll has a plurality of ridge forming annular grooves formed in the peripheral surface thereof over the entire circumference of the surface and arranged at a spacing axially of the first work roll. The two work rolls are rotated so that the peripheral speed of the bottom face of the deepest of all the ridge forming annular grooves in the first work roll is not less than the peripheral speed of the peripheral surface of the second work roll.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: September 9, 2008
    Assignee: Showa Denko K.K.
    Inventors: Satoru Kaimura, Takashi Tamura
  • Publication number: 20080145686
    Abstract: An article includes a working portion including cemented carbide, and a heat sink portion in thermal communication with the working portion. The heat sink portion includes a heat sink material having a thermal conductivity greater than a thermal conductivity of the cemented carbide. Also disclosed are methods of making an article including a working portion comprising cemented carbide, and a heat sink portion in thermal communication with the working portion and including a heat sink material having a thermal conductivity that is greater than a thermal conductivity of the cemented carbide. The heat sink portion conducts heat from the working portion.
    Type: Application
    Filed: October 25, 2007
    Publication date: June 19, 2008
    Inventors: Prakash K. Mirchandani, Alfred J. Mosco, Eric W. Olsen, Steven G. Caldwell
  • Publication number: 20080115550
    Abstract: A flange-forming apparatus allows a user to automatically adjust the device's roll forming stations, concurrently together, for changing the height of a flange formed into a metal web by the roll forming stations, e.g., for ductwork. The height is adjustable within an infinite range between set maximum and minimum limits. Each roll forming station includes upper and lower roll forming pairs, which cooperate for forming the flange or portion thereof. Each roll forming pair includes a first roll forming portion, and a second, coaxial roll forming portion that is axially moveable towards and away from the first roll forming portion. (The portions are in effect a laterally split roll forming die.) The second roll forming portions are rotatably supported on a plate-like adjustment linkage assembly, which can be shifted, using an array of motor driven screw members, towards or away from the first roll forming portions.
    Type: Application
    Filed: November 15, 2007
    Publication date: May 22, 2008
    Applicant: FORMTEK, INC.
    Inventor: DAVID WALLE
  • Patent number: 7367209
    Abstract: The invention relates to a method for the optimization of shift strategies, as a function of the strip width, for best possible usage of the advantages of CVC/CVCPlus technology in operation of strip-edge oriented shifts in 4-/6-roller stands, comprising a pair of working rollers and a pair of support rollers for a 4-roller stand and, in addition, a pair of intermediate rollers for a 6-roller stand, whereby at least the working rollers and the intermediate rollers cooperate with devices for axial shifting, characterized in that selection of the shift position (VP), for the shifting working/intermediate rollers, is made as a function of strip width. The working/intermediate rollers are then positioned in various positions (P), relative to the strip edge and, within differing strip width ranges (B), the shift position (VP) of each roller is given by an incremental linear progressive function.
    Type: Grant
    Filed: November 11, 2004
    Date of Patent: May 6, 2008
    Assignee: SMS Demag AG
    Inventors: Andreas Ritter, Rüdiger Holz
  • Patent number: 7353681
    Abstract: A cold rolling process for impressing a pattern on a surface of a sheet metal article involves passing the sheet article through a pair of rolls and engaging a patterning feature with isolated areas of a surface of the sheet article, at a localized pressure to plastically deform at least the surface of the sheet article. A rolling pressure is maintained on other areas of the sheet article that is less than the bulk elastic yield strength of the metal. A cold rolling apparatus is also described having a pair of rolls, each with partially cylindrical outer surfaces. The rolls have a gap between the cylindrical parts. One of the rolls has a localized surface region that is displaced relative to the surface of the roll. When the localized region is brought near the other roll, a spacing exists that is narrower than the gap. One of the rolls has a localized patterning feature that aligns with the localized surface region to impress a pattern into the sheet article.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: April 8, 2008
    Assignee: Novelis Inc.
    Inventors: Melville Douglas Ball, John Anthony Hunter, Gary J. Smith
  • Patent number: 7350388
    Abstract: A method for determining a shape of a shift roll for a rolling mill, includes the steps of determining a necessary control amount distribution ?i for a plate crown with respect to plate widths, based on a distribution of the number of plates rolled by a target rolling mill with respect to plate widths, and providing a maximum radius difference yA0 of the shift roll. The method further includes the steps of preliminarily determining a line yi of a roll radius distribution with respect to plate widths, based on the necessary control amount distribution ?i and the maximum radius difference yA0, shifting the line yi of the roll radius distribution by a maximum roll shift to obtain a distribution ?yBi of a roll gap change amount with respect to plate widths under the maximum roll shift, and smoothing sharp local changing part of the distribution ?yBi of the roll gap change amount.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: April 1, 2008
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Hisashi Honjo, Masayoshi Sato
  • Patent number: 7343767
    Abstract: A roller tool is used within a sheet deformation facility for the linear deformation of sheet metal. The roller tool comprises a press roller having a shaft and a roller body rolling around the same as well as a counterbody. The press roller and the counterbody can be jointly moved in a linear manner relative to a sheet positioned between them that is to be processed for performing the sheet metal deformation. The roller body has a plurality of roller discs which are adjacent to each other, which together form the section of the roller body that can be placed onto the sheet to be processed and which can rotate around the shaft independently of each other. The sheet deformation facility is furthermore provided with a roller tool support and a drive for pivoting the roller tool support around an axis perpendicular to the sheet that is to be processed.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: March 18, 2008
    Assignee: Pass Stanztechnik AG
    Inventors: Hans Jürgen Bauer, Florian Keller
  • Patent number: 7334446
    Abstract: This invention describes both a method and apparatus to practice a method which produces a strip-like pre-material from metal using rollers which have a roll gap in which the metal strip is discontinuously rolled in successively steps between the same two rollers with the metal strip being also recalled, but the recalled section of the metal strip is shorter than the circumference of the rollers. In this manner the surface quality of the metal is improved, especially relating to stamping of coins and metals.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: February 26, 2008
    Inventor: Hans-Jörg Bauder
  • Patent number: 7316146
    Abstract: In the case of a rolling stand for producing rolled strip, which is provided with rolls which are axially displaceable with respect to one another, have a curved contour running over the entire effective barrel length and complement one another exclusively in a specific relative axial position of the rolls in the unloaded state, it is intended for the thickness profile of the roll gap over the active roll barrel length to be varied by axial displacement of the rolls provided with a roll barrel contour in relation to one another in such a way that a strip that is planar and free from undulations is obtained. This takes place by the profile of the barrel contour of the rolls of a pair of rolls being formed by a trigonometric function and the roll gap contour also being formed by a trigonometric function in dependence on the profile of the barrel contour and the position of the rolls within the axial displacement region.
    Type: Grant
    Filed: September 2, 2002
    Date of Patent: January 8, 2008
    Assignee: Voest-Alpine Industrieanlagenbau GmbH & Co.
    Inventors: Alois Seilinger, Andeas Mayrhofer, Alexander Kainz
  • Patent number: 7296517
    Abstract: A roll for metal rolling has a roughened surface formed by an electrolytic treatment in an electrolytic solution while using the roll as an anode. When the roll is used to emboss an aluminum plate, it is possible to obtain an aluminum plate with an uneven structure having regulated positions of levels of peaks and a larger number of the peaks. A presensitized plate formed by use of the aluminum plate as a support has excellent printing performances particularly in the number of printed sheets and sensitivity.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: November 20, 2007
    Assignee: Fujifilm Corporation
    Inventors: Atsuo Nishino, Hirokazu Sawada, Akio Uesugi
  • Patent number: 7296451
    Abstract: A roller tool for forming circumferential grooves around a pipe is disclosed. The tool is rotatable about an axis of rotation and has a circumferential surface engageable with a pipe. The tool surface includes first and second surface portions positioned in spaced relation and oriented perpendicularly to the axis of rotation. A radial surface portion extends between the first and second surface portions and is oriented substantially parallel to the axis of rotation. An angled surface portion is positioned adjacent to the second surface portion. The angled surface portion is oriented at an angle up to about 70° and slopes away from the second surface portion.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: November 20, 2007
    Assignee: Victaulic Company
    Inventor: Douglas R. Dole
  • Patent number: 7257978
    Abstract: The invention relates to an apparatus for rolling a metallic product comprising a mill frame (18), a first cantilever roll shaft (19), a second cantilever roll shaft (20), both said roll shafts (19, 20) being mounted on the mill frame (18) with two sets of bearing assemblies (38, 39, 40, 41), a first rolling ring (21) mounted on the first roll shaft (19), a second rolling ring (22) mounted on the second roll shaft (20) said rolling rings (21, 22) forming a nip (23) in between, at least one ring (29) arranged with its inside surface (43) in rolling contact with the first roll shaft (19) and with at least one intermediate roll (27), which intermediate roll (27) is arranged also in rolling contact with the second roll shaft (20) and at least one drive end (42) arranged at the end of either roll shafts (19, 20) for driving the mill (16). The invention also relates to a method of producing a metallic product.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: August 21, 2007
    Assignee: Luvata Oy
    Inventors: Ilpo Koppinen, Brian Swank, Hans Keife
  • Patent number: 7251978
    Abstract: The aim of the invention is to improve known roll stands (10) which are characterized by working rolls (1,2) of various diameters, in such a way that a strip is obtained which is largely free of tensions and undulations, has a desired strip profile superelevation, and can be used approximately universally.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: August 7, 2007
    Assignee: SMS Demag AG
    Inventors: Jürgen Seidel, Wilfried Bald
  • Patent number: 7241126
    Abstract: An apparatus imparts concaves/convexes to a sheet-like object by passing the sheet-like object between a pair of rollers facing each other. At least one of the rollers is a roller a surface of which is formed by laminating a single or a plurality of circular plates each provided with concaves/convexes at a peripheral edge thereof. An interval keeping mechanism is provided between the circular plates provided with concaves/convexes at the peripheral edges. At least one of the rollers is formed with a roller surface by laminating a single or a plurality of circular plates each having only convexes of concaves/convexes portions at a peripheral edge thereof. By the roller, convexes can be imparted to one face of front and back surfaces of a sheet-like object.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: July 10, 2007
    Inventors: Takao Saito, Koji Saito
  • Patent number: 7200935
    Abstract: Improved work roll, particularly for use in closed gap rolling, has a composite structure comprising a cylindrical outer layer (14) made of steel, and providing the work surface of the roll, separated from a steel core (12) by an intermediate layer (13) of material such as aluminium or copper having a lower Young's modules than that of the layer (14). Provided that the dimensions of the outer layer (14) and intermediate layer (13) are chosen appropriately, this combination can release a work roll having an affective Young's modules which is lower than that of steel whilst at the same time retaining the advantages of a steel work surface and enabling higher rolling speeds.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: April 10, 2007
    Assignee: Novelis, Inc.
    Inventor: Christopher John Davenport
  • Patent number: 7168279
    Abstract: A metal ring with smaller stress concentration is manufactured, and the manufacture and maintenance of a rolling roller for transferring a mesh-shaped unevenness to the metal ring is facilitated. A mesh-like unevenness 8 is formed to the surface of an inner circumference rolling roller 6. This unevenness 8 is formed by rotating the inner circumference rolling roller 6 at a predetermined speed, and moving a grinder 9 back and forth in the axial direction of the inner circumference rolling roller 6 while biasing the grinder toward the surface of the roller 6 with predetermined force. The grain size of the grinder is between #270 and #1000. When the inner circumferential surface of the metal ring 1 is rolled using the inner circumference rolling roller 6, a mesh-like unevenness 2 is transferred onto the metal ring 1.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: January 30, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Katsuyuki Nakajima, Hitoshi Imai, Masanobu Ishikawa, Hiroshi Takeda, Tomomi KoSaka
  • Patent number: 7131307
    Abstract: The invention relates to an apparatus for rolling a strip (21) comprising a first work roll (24), which is mounted from both ends with bearings (35) to the mill frame, a second work roll (25), which work rolls (24, 25) are forming a nip (26) in between them, one or more ring(s) (19, 20) closing inside at least one of the work rolls (24, 25), at least first intermediate roll (27, 39) mounted to the mill frame from both ends with bearings (36) and arranged in rolling contact between the second work roll (25) and inside surface (22) of the ring(s) (19, 20). The invention also relates to the method of producing a thin strip.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: November 7, 2006
    Assignee: Outokumpu Oyj
    Inventors: Ilpo Koppinen, Brian Swank, Hans Keife
  • Patent number: 7059163
    Abstract: The invention relates to a roll stand comprising a crown-variable-control (CVC) roll pair, preferably a CVC working roll pair and a back-up roll pair, which comprise a contact area (B cont) in which a horizontally active torque (M) acts that leads to a twisting of the rolls and thus to axial forces in the roll bearings. In order to keep the axial forces in the roll bearings as small as possible, the torque (M) is minimized by an appropriate CVC grinding.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: June 13, 2006
    Assignee: SMS Demag AG
    Inventors: Hans Georg Hartung, Klaus Klamma, Wolfgang Rohde, Jürgen Seidel
  • Patent number: 7047621
    Abstract: A method for casting and rolling preliminary sections, especially H-sections, and a device for the support, guidance and deformation of a metal strand, especially a steel cast strand (1), in a continuous casting installation for preliminary sections with soft reduction (9), wherein roll carriers (2) are arranged below the continuous casting mold opposite each other on each side of the cast strand (1a, 1b), the rolls of said carriers being in transport and/or deformation connection with said cast strand, and wherein to avoid segregation and porosity, the preliminary section is precast in the continuous casting mould with a bulge (6a) on the flanges (7) on the surface (6b) of the web of said preliminary section, and the bulges (6a) of the flange (7) and the web of the preliminary section (6) are rolled flat in the soft reduction area (9) in such a way that the outer surfaces of the flange (7a) and the web surfaces of the preliminary section (6b) are largely plane.
    Type: Grant
    Filed: December 1, 2001
    Date of Patent: May 23, 2006
    Assignee: SMS Demag AG
    Inventors: Adolf Zajber, Thomas Fest
  • Patent number: 7010952
    Abstract: A device for holding at least one roller of a rolling machine that can rotate about a rotational axis includes two holding arrangements that can be arranged on opposite faces of the roller viewed in the direction of the rotational axis. The device further includes at least two coupling parts each configured for a coupled mode and an uncoupled mode. A first of the two coupling parts has at least one, preferably essentially straight first groove, and has a second groove that does not run parallel to the first groove. A second of the two coupling parts includes a first coupling element and a second coupling element, wherein the first coupling element projects further outward from the second coupling part than the second coupling element. In at least one implementation, the roller can be detached or removed from the holding arrangements when the holding arrangements are in uncoupled mode.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: March 14, 2006
    Assignee: Langenstein & Schemann GmbH
    Inventors: Günter Hofmann, Stelios Katsibardis, Siegfried Hausdörfer, Henry Zwilling, Günther Vogler
  • Patent number: 6959575
    Abstract: A method and apparatus for knurling a workpiece in which the knurl pattern includes grooves of at least two different configurations. The apparatus includes a knurl wheel holder that allows angular rotation of the knurl wheel about the holder longitudinal axis while maintaining the knurl wheel point of contact on the longitudinal axis. The apparatus also includes a knurling wheel that includes teeth of at least two different configurations. Also disclosed is a method of molding a molded article with the knurled workpiece to impart the inverse of the knurl pattern onto the molded article, such a molded article, a method of forming a structured abrasive article with the molded article, and such an abrasive article.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: November 1, 2005
    Assignee: 3M Innovative Properties Company
    Inventor: Timothy L. Hoopman
  • Patent number: 6923033
    Abstract: A roller system for flattening irregularly shaped pieces of scrap sheet metal comprises a pair of parallel, horizontally arranged large rollers forming a downwardly converging nip between them. Each roller is formed of curved steel sheets bent to form a cylindrical shape for the rollers. A series of curved, steel liner plates overlay and cover the surfaces of the cylinders. The plates are made of a harder material than the steel sheets. The liner plates on each cylinder are arranged end-to-end and are mechanically fastened to their respective rollers so that the opposite ends of the plates provide a leading edge and a trailing edge. The trailing edge of each plate is chamfered and is arranged against a generally radially directed, blunt edge surface of the leading end of the next plate to form a roughly triangularly shaped in cross-section groove extending longitudinally of the exterior surface of the rollers.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: August 2, 2005
    Assignee: Soave Enterprises, LLC
    Inventor: Alfred George Hering
  • Patent number: 6877206
    Abstract: The invention relates to a method for producing a metal strip from a cast by rolling in which method the technique of a profiled rolling in combination with a strip rolling is used. The material for the metal strip is first cast by using a casting technique to produce a cast profile having the center part thicker than the lateral parts and the cast profile is in an essentially continuous manner conducted into a rolling mill where during the at least two-staged profiled rolling the cast profile is divided into two symmetrical segments and maintained as two equal segments. These segments are spread into the lateral regions of the material to be rolled into a flattened profile which is as an object for at least one-staged strip rolling so that the spread ratios between the center part dimension of the cast profile and the width of the strip of greater than 2.8:1 are achieved.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: April 12, 2005
    Assignee: Outokumpu Oyj
    Inventors: Dan Hall, Ilpo Koppinen, George Mayer, Brian Swank
  • Patent number: 6826941
    Abstract: A roller assembly for use as a back-up roller for work rolls. The roller assembly comprises an axle, a roller rotatably mounted on the axle, a plurality of bearing elements rotatably positioned between the axle and roller, at least one bushing which is eccentric relative to the axle and which is fixedly mounted on the axle by a dowel which passes through holes in the axle and eccentric bushing, and a housing for the bushing. The eccentric bushing is rotatable for translating the roller in a radial direction thereof.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: December 7, 2004
    Inventor: Ronald L. Plesh, Sr.
  • Publication number: 20040216300
    Abstract: A method for casting and rolling preliminary sections, especially H-sections, and a device for the support, guidance and deformation of a metal strand, especially a steel cast strand (1), in a continuous casting installation for preliminary sections with soft reduction (9), wherein roll carriers (2) are arranged below the continuous casting mold opposite each other on each side of the cast strand (1a, 1b), the rolls of said carriers being in transport and/or deformation connection with said cast strand, and wherein to avoid segregation and porosity, the preliminary section is precast in the continuous casting mould with a bulge (6a) on the flanges (7) on the surface (6b) of the web of said preliminary section, and the bulges (6a) of the flange (7) and the web of the preliminary section (6) are rolled flat in the soft reduction area (9) in such a way that the outer surfaces of the flange (7a) and the web surfaces of the preliminary section (6b) are largely plane.
    Type: Application
    Filed: November 24, 2003
    Publication date: November 4, 2004
    Inventors: Adolf Zajber, Thomas Fest
  • Publication number: 20040148996
    Abstract: Improved work roll, particularly for use in closed gap rolling, has a composite structure comprising a cylindrical outer layer (14) made of steel, and providing the work surface of the roll, separated from a steel core (12) by an intermediate layer (13) of material such as aluminium or copper having a lower Young's modules than that of the layer (14). Provided that the dimensions of the outer layer (14) and intermediate layer (13) are chosen appropriately, this combination can release a work roll having an affective Young's modules which is lower than that of steel whilst at the same time retaining the advantages of a steel work surface and enabling higher rolling speeds.
    Type: Application
    Filed: March 5, 2004
    Publication date: August 5, 2004
    Inventor: Christopher John Davenport
  • Patent number: 6739167
    Abstract: A work roll for use in rolling apparatus for producing from a metal blank sheet articles having a deformed cross section and comprising, for example, a plate portion, and a plurality of upright walls formed on one surface of the plate portion integrally therewith and arranged as spaced apart from one another, such as flat heat exchange tube component members, heat sinks and lead frames. The work roll assures more simplified production work and provides surface finishes with higher accuracy than conventionally. The work roll comprises different kinds of disks having different diameters and arranged alternately on an axis into juxtaposed layers as secured to one another. Large disks 20A, 20B, are arranged at respective portions not forming the upright walls, and small disks 21A, 21B smaller than the large disks 20A, 20B in radius by an amount corresponding to the height of the upright walls are arranged at respective portions for forming the upright walls.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: May 25, 2004
    Assignee: Showa Denko K.K.
    Inventors: Keigo Kobayashi, Norikazu Inaba, Takashi Tamura
  • Publication number: 20040035173
    Abstract: The invention relates to an apparatus for strip processing with at least one uncoiling station, at least one strip processing station (1) and at least one coiling station. Especially to reduce undesirable strip-edge stresses, a known apparatus for strip processing is configured such that a strip-edge stretching station (2) which stretches the edges of the strip, is provided between the uncoiling station and the coiling station.
    Type: Application
    Filed: June 10, 2003
    Publication date: February 26, 2004
    Inventor: Jurgen Grell
  • Publication number: 20040003638
    Abstract: A method for impressing holographic images or holograms in the surface of sporting and fitness products such as ball bats and bicycle frames. The surfaces of metal shims and print rolls bearing holograms are hardened as by coating them with thin amorphous diamond coatings or diamond like coatings so the holograms can be embossed into many thousands of metal objects with clarity and consistency.
    Type: Application
    Filed: May 6, 2003
    Publication date: January 8, 2004
    Inventors: Mark W. Schaefer, Thomas L. Levendusky, Simon Sheu, Robert B. Larsen, Neville C. Whittle
  • Publication number: 20040003644
    Abstract: The invention relates to a roll stand comprising a crown-variable-control (CVC) roll pair, preferably a CVC working roll pair and a back-up roll pair, which comprise a contact area (bcont) in which a horizontally active torque (M) acts that leads to a twisting of the rolls and thus to axial forces in the roll bearings. In order to keep the axial forces in the roll bearings as small as possible, the torque (M) is minimized by an appropriate CVC grinding.
    Type: Application
    Filed: June 30, 2003
    Publication date: January 8, 2004
    Inventors: Hans Georg Hartung, Klaus Kama, Wolfgang Rohde, Jurgen Seidel
  • Publication number: 20030235680
    Abstract: A method utilized in rolling up materials. In particular, the invention relates to method of rolling corrugated sheets of material. More particularly, the invention relates to a method of rolling pre-formed corrugated sheets of thermoplastic based material. The present invention relates to a method of rolling sheets of thermoplastic material that comprises providing a pre-formed sheet of thermoplastic material, forming a plurality of corrugations on said pre-formed sheet of thermoplastic material; wherein the corrugated shape is made up of inwardly and outwardly extending undulations, rolling the corrugated sheet of thermoplastic material from a first end to a second end; wherein the undulations of a first layer are nestable with the undulations of each subsequent layer of the pre-formed corrugated sheet thermoplastic material.
    Type: Application
    Filed: June 21, 2002
    Publication date: December 25, 2003
    Inventor: Artin Zakarian
  • Patent number: 6539628
    Abstract: A V-shaped metal strip has a U-shaped bottom having U-shaped inside and outside surfaces. Only the U-shaped inside surface is formed with a plurality of fold lines extending in a longitudinal direction of the strip and reducing the influence of springback. The fold lines may be arranged in a manner of bilateral symmetry with respect to an imaginary median plane bisecting the V-shaped cross section of the metal strip.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: April 1, 2003
    Assignee: Calsonic Kansei Corporation
    Inventors: Tomoaki Akutsu, Natsuko Hirayanagi, Harumi Obata
  • Patent number: 6532788
    Abstract: A roller assembly for use as a back-up roller for work rolls. The roller assembly comprises an axle, a roller rotatably mounted on the axle, a plurality of bearing elements rotatably positioned between the axle and roller, and at least one bushing which is eccentric to the axle and which is fixedly mounted on the axle. The eccentric bushing is rotatable for translating the roller in a radial direction thereof. In order to rotate the bushing in one of opposite circumferential directions, preferably, force is applied to a respective one of a pair of terminal ends of a groove which extends circumferentially in a radially outer surface of the eccentric bushing. Each of the axle and roller, which serve as inner and outer races respectively, preferably has a thickness radially of at least about 1 inch to provide high bearing capacity.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: March 18, 2003
    Inventor: Ronald L. Plesh, Sr.
  • Patent number: 6497130
    Abstract: A method for corrugating a metal foil (11), which together with a longitudinally flat foil (12) is intended to form a foil package pervious to liquid or gas, where the folds are made with a very small fold radius by rolling in at least two steps between rollers (42, 43) disposed in pairs, the fold radius (51) being large and the fold height (52) low in a first step, and after the final step, the fold radius (53) is less than 10%, preferably 2 to 5% of the fold distance (55), and the fold height (54) is greater than after the first step.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: December 24, 2002
    Assignee: Kemira Metalkat Oy
    Inventor: Sven Melker Nilsson
  • Publication number: 20020104359
    Abstract: A process for creating a curved rail for use by a trolley by providing a rail having a first side, a second side, a third side, a first edge located between said first side and said second side, and a second edge located between said second side and said third side. The process comprises pinching the first edge and second edge with sufficient force to provide a substantially constant curvature across a majority of said second side. The pinching is not only inexpensive, but also hardens the surface of the rail.
    Type: Application
    Filed: February 2, 2001
    Publication date: August 8, 2002
    Inventors: Verlan Van Dyke, Keith Korver, Perry Klein
  • Patent number: 6360575
    Abstract: This invention relates to the plastic metal working, particularly to tube rolling production and can be applied for tube cold pilgering on rolling machines. Tool design for tube cold pilgering, in which, in order to increase accuracy, surface quality, mechanical properties stability and decrease rolled tubes defects, the evolvement of external and profile of internal tooling are executed in the form of unified curve and represent geometrical location of various spline-functions key-points, whereupon along with geometrical parameters of spline-functions calculated curves the authors use factors defining physical-mathematical properties of rolled material and pilgering schemes.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: March 26, 2002
    Assignee: Joint Stock Company “Chepetskiy Mechanical Plant”
    Inventors: Sergey Yurievich Zavodchikov, Anatoliy Frantsevich Lositskiy, Vladimir Andreevich Kotrekhov, Vladimir Arsenievich Komissarov, Vladimir Nikolayevich Safonov, Sergey Valerjevich Krotkikh, Vasiliy Gennadjevich Devyatikh, Vladimir Alekseevich Veretennikov, Oleg Viktorovich Bocharov, Viktor Fedorovich Buchovtsev, Alexandr Konstantinovich Shikov
  • Patent number: 6324881
    Abstract: Method to control the profile of a strip (13) in a rolling stand for strip and/or sheet comprising at least two working rolls, respectively upper (11a) and lower (11b) and defining a reference pass-line (15) substantially coinciding with the center line of said strip (13), said rolls (11a, 11b) defining between them a transit gap (12) through which said strip (13) passes and is rolled and being supported at the ends by respective chocks, said method providing the axial movement (shifting) of said working rolls (11a, 11b) with respect to said pass-line (15), said working rolls (11a, 11b) having a shaped surface profile (14) which can be expressed by a polynomial equation, said method providing to apply a first value (“s1”) of axial translation, or shifting, to said upper working roll (11a) and a second value (“s2”) of axial translation, or shifting, to said lower working roll (11b), s1 being ≠s2.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: December 4, 2001
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventors: Gianpietro Benedetti, Estore Donini, Paolo Bobig
  • Patent number: 6301943
    Abstract: A method for finishing cold-rolled stainless steel is disclosed, wherein the stainless steel is annealed and descaled. After descaling, the cold-rolled stainless steel is temper rolled, buffed and embossed. Line speed as fast as 75 fpm is used to produce an AISI #3 finish.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: October 16, 2001
    Assignee: J&L Specialty Steel, Inc.
    Inventors: Michael F. McGuire, Richard W. McCabe
  • Patent number: 6286355
    Abstract: A rolling mill with working rolls and with multipart support rolls. The rolling mill includes of a basic body with a plurality of rolling bearings which are arranged next to one another on the basic body in its longitudinal direction. The outer rings of the bearing rotatably support a sleeve which surrounds the rolling bearings and bears with its inner surface, all-round, on the outer surfaces of the outer rings of the rolling bearings and the outer surface of which forms the roll barrel of the support roll. Three rolling bearings, of which the middle rolling bearing is designed as a tapered rolling bearing, are provided over the length of the basic body. In this case the two outer rolling bearings are designed as cylindrical roller bearings and an eccentric bush motively rotatable about the longitudinal axis of the basic body is arranged between the two cylindrical roller bearings and the basic body.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: September 11, 2001
    Assignee: SMS Demag AG
    Inventors: Dieter Figge, Wilhelm Schwerdt
  • Patent number: 5056748
    Abstract: A molded plastic holder for printed material includes a substantially flat support panel which is designed to be mounted to any vertical surface. Molded as part of and integrally joined to the support panel along a lower edge is a first curved clip which curves outwardly at its base so as to provide a clearance space to receive the material and then extends inwardly in order to create a pressure point which presses against any material placed in the holder in order to retain the material securely in place. Also molded as part of and integrally joined to the support panel is a second curved clip of virtually identical construction to the first curved clip. The clips each have an inherent spring tension which allows each clip to be easily pulled forward for the insertion of material into the holder and to spring back to apply the desired holding force. Snap-on legs are used when the holder is to be table-mounted.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: October 15, 1991
    Assignee: Deflecto Corporation
    Inventor: Stephen T. Meyer