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| Number | Title | Issue Date |
| 8166789 | Pipe or tube reducing mill and roll for reducing mill A reducing mill includes a plurality of stands disposed along a rolling direction line. The stands each include n rolls (n≧3) disposed around the rolling direction line, the n rolls are shifted by 180°/n around the rolling direction line from n rolls included in ... | 05/01/2012 |
| 8113027 | Method and device for the manufacture of multiple grooved wire A plurality of rollers for producing longitudinal grooves in an elongated metal substrate, the plurality of rollers comprising a first set and a second set of rollers, the plurality of rollers having groove-forming fluted edges thereon. The plurality of rollers are ... | 02/14/2012 |
| 7367209 | Optimised shift strategy as a function of strip width 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 ... | 05/06/2008 |
| 7363792 | Apparatus for manufacturing metal material by rolling The invention relates to a device for producing a metallic product (1) by rolling, comprising: a first area (2) inside of which slabs are produced by primary shaping; a second area (3), which is located downstream from the first area (2) ... | 04/29/2008 |
| 7322220 | Apparatus for manufacturing trapezoidal wire using two-set shaping rollers An apparatus for manufacturing a trapezoidal wire using two-set shaping rollers has a body rotating about a central axis at a predetermined speed, a plurality of first shaping roller sets installed along an outer circumference of the body, each first shaping roller ... | 01/29/2008 |
| 7316144 | Rolling mill consisting of horizontal stands and vertical stands In a rolling mill which consists of at least one horizontal stand (1) and at least one vertical stand (2), which are connected with each other, between both stands (1, 2), connection elements (7) are releasably arranged, wherein the conne... | 01/08/2008 |
| 7293440 | Method of setting/controlling wedge in plate material rolling A wedge setup/control method for plate material rolling ensures that the work side and drive side are equal in the rolled plate thickness. The wedge setup/control method, which is used in reversible rolling of a plate material with a rough mill for hot rolling, incl... | 11/13/2007 |
| 7237415 | Method for producing slide seat and its manufacture device An improved method for producing slide seat and manufacture device, in which, one metal bar passes through the tamping drum groups arranged in tandem, apply the progressive model of slide seat mounted on the middle section of tamping drum to tamp gradually, meanwhil... | 07/03/2007 |
| 7191628 | Method of continuously hot rolling a heated billet into a plurality of finished products A billet is initially rolled into a process section having at least first and second segments joined by an intermediate web, with the cross-sectional area of the second segment being larger than that of the first segment. The intermediate web is slit to separate the... | 03/20/2007 |
| 7188502 | Method and device for changing the rolls of a tube welding stand The invention relates to a method for changing sets of top rolls, lateral rolls, and a bottom roll, and mounted in chocks of a welding stand of a continuously operating longitudinal tube welding machine. The inventive method enables the rolls to be changed faster, u... | 03/13/2007 |
| 7174761 | Method of manufacturing a seamless pipe When manufacturing a seamless pipe by carrying out elongation rolling and sizing on a mother tube for forming a seamless pipe, the occurrence of portions of thickness variation in the seamless pipe is suppressed by previously identifying the portions of wall thickne... | 02/13/2007 |
| 7163047 | Pinch roll apparatus and method for operating the same 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 offse... | 01/16/2007 |
| 7096704 | Structural body and method for cold rolling A cold rolling method for performing a series of processes including rolling and cutting of a workpiece in succession, wherein tensile forces are applied to the workpiece during processes from the rolling to straightening. To eliminate the processes of anneal... | 08/29/2006 |
| 7093472 | Method of continuously rolling a product exiting from an upstream roll stand at a velocity higher than the take in velocity of a downstream roll stand A method is disclosed for continuously rolling a product exiting from an upstream roll stand at a delivery velocity V1 higher than the take in velocity V3 of a downstream roll stand. The excess product resulting from the velocity differential b... | 08/22/2006 |
| 7076983 | Apparatus and method for hot rolling The hot rolling apparatus of the present invention has a mill arranged on the preceding stage, mills of a plurality of stands arranged on the later stage which are different-diameter roll mills including a pair of different-diameter work rolls having an equivalent r... | 07/18/2006 |
| 7047621 | Method for casting and immediate rolling, and device for the support, guidance and deformation of a metal strand, especially in steel strand 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... | 05/23/2006 |
| 7032645 | Pinch roll apparatus and method for operating the same 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 offse... | 04/25/2006 |
| 6983631 | Method for operating a mill train and a correspondingly embodied mill train The invention relates to a mill train (1) for milling a strip-type product to be milled (10). Said mill train comprises a number of roll stands (2) which are successively arranged in a milling direction (x) and which can be respectively pivoted ... | 01/10/2006 |
| 6920774 | Drive system for multi-roll leveler A drive system for a multi-roll leveler. The drive system is coupled to a set of upper work rolls of the leveler. Preferably, the lower, and not the upper set of work rolls provide the bending necessary to flatten the strip of material. The drive system employs a ge... | 07/26/2005 |
| 6813921 | Method for rolling metal material into a metal strip The invention relates to a method for rolling a metal profile into a metal strip in which method the technique of a profiled rolling in combination with a strip rolling is used, comprising that during the at least two-staged profiled rolling the metal rod is divided... | 11/09/2004 |
| 6766934 | Method and apparatus for steering strip material Strip material is fed to a reduction rolling mill by a steering device in the form of a pinch roll stand comprising pinch rolls to which strip gripping forces are applied by hydraulic cylinder units located at the ends of the pinch rolls. A reduction mill is similar... | 07/27/2004 |
| 6619092 | Tandem rolling mill facility and rolling method using the same In a tandem rolling mill facility and a rolling method using the tandem rolling mill facility, stable rolling is performed with suppressing deflection of working rolls and without fluctuation of working roll bearing boxes. Axes of working rolls 1 are offs... | 09/16/2003 |
| 6526792 | Method for minimizing thickened ends during the rolling of pipes in a stretch reducing mill The invention relates to a method for minimizing thickened ends during the rolling of tubes in a stretch-reducing mill by means of a change in time of the torque of individual driven roll stands when the tube front end and the tube rear end run through th... | 03/04/2003 |
| 6357273 | Method of reducing waste in the rolling of strip segments interconnected by weld seams A tandem strip-rolling line has a strip store between the mill so that when the upstream mill is open on the approach of a weld seam joining successive lengths, the downstream mill rolls strip stored in the strip store and conversely when the strip is hal... | 03/19/2002 |
| 6314781 | Method of wire rolling and rolling mill In a rolling mill, a mini block (MBM) is installed between a block mill (BM) and a sizing mill (SM) as a reducer for intermediate rolling. The block mill (BM) is so constructed that it is possible to use both a front group (BM1) and a rear group (BM2) of ... | 11/13/2001 |
| 6282767 | Method to roll strip and plate and rolling line which performs such method Method line to roll strip and plate starting from thin slabs produced by continuous casting, whereby the cast product is subjected to at least one descaling operation followed by a roughing operation and by a finishing operation before being wound in coil... | 09/04/2001 |
| 6240757 | Process and installation for rolling a metal strip A process for rolling a metal strip, in particular a steel strip, using a cold-rolling train, which is followed by an annealing section and a temper pass section, the outflow thickness, i.e., the setpoint thickness of the metal strip at the outflow from t... | 06/05/2001 |
| 6205835 | Roll stand arrangement for rolling wire A roll stand arrangement for rolling wire with a finishing block arranged following the last stand of the intermediate group of a wire rolling mill and composed of fixedly connected roll stands with grooved rolls, and a skin pass block arranged following ... | 03/27/2001 |
| 6205834 | Method of rolling finished sections from preliminary sections in reversing roll stand arrangements A method of rolling finished sections from preliminary sections by means of roll stand arrangements which operate in reversing operation and include a compact rolling group composed of a first universal stand at the entry side and a second universal stand... | 03/27/2001 |
| 6183879 | Rigid thin sheet material and method of making it Lightweight flexure-resistant thin metal sheet is produced by passing flexible thin metal sheet between rolls having defined teeth, the teeth having radiused corners so that rows of projections are formed on both faces of the sheet without damage to the s... | 02/06/2001 |
| 6161412 | Multi-strand finishing block A multi-strand finishing block finishes two or more daughter strands slit from a parent bar. Each strand is rolled by at least two pairs of rolls arranged in tandem with the rolls of each pair being at right angles to the rolls of the other pair. A common... | 12/19/2000 |
| 6128938 | Method of rolling wire having at least a first and a second rolling strand A method of rolling rod in which at least first and second strands are jointly rolled in a mill line having at least one final multistrand stand operating at a rolling speed which is variable as a result of predictable rolling events. Downstream of this s... | 10/10/2000 |
| 6128934 | Stretch reduction mill A method and apparatus that provides a multiple-stand stretch reduction mill. A single master controller monitors and controls the roll speed at each roll stand in the mill, automatically and simultaneously maintaining each stand's roll speed at a pre-det... | 10/10/2000 |
| 6116072 | Method of rolling finished sections from preliminary sections in reversing roll stand arrangements A method of rolling finished sections from preliminary sections by means of roll stand arrangements which operate in reversing operation and include a compact rolling group composed of a first universal stand at the entry side and a second universal stand... | 09/12/2000 |
| 6116071 | Rolling mill for sizing tubes or cylindrical bodies in general in the iron and steel industry The invention relates to a rolling mill for sizing tubes or cylindrical bodies such as bars, rods and so on, and is intended for the iron and steel industry. The rolling mill is made up of a multiplicity of fixed three-roll rolling units, i.e. of the type... | 09/12/2000 |
| 6038904 | Decamberer A decamberer for strip of approximate rectangular section has opposed rollers defining a downstream extent each with grooves receiving the strip edges and maintaining the strip in an approximate plane, and defining when viewed perpendicular to the plane a... | 03/21/2000 |
| 6035684 | Method of rolling strip, particularly metal strip A method of rolling strip, particularly metal strip, for example, steel strip, in a rolling train with several roll stands arranged one behind the other, wherein the strip enters each of the roll stands with a desired entry thickness and each of the roll ... | 03/14/2000 |
| 5931040 | Rough rolling mill train The present invention is directed to a rough rolling mill for rolling a slab of material into a rough bar through a hot rolling process. The rolling mill reduces material temperature drop thereby preventing a decrease in productivity. The rolling mill tra... | 08/03/1999 |
| 5927128 | Roll stand arrangement for single strand rolling A block-type roll stand arrangement for single strand rolling including roll stand housings mounted on a support structure. The roll stand housings are all of the same construction and each receives a pair of roll support shafts and the drive gear units t... | 07/27/1999 |
| 5901597 | Method of operating a roll stand arrangement A method of operating a roll stand arrangement composed of one or more roughing stands and a compact rolling group arranged downstream of the roughing stands and transversely offset relative to the roughing stands. The compact rolling group is connected t... | 05/11/1999 |
