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| Number | Title | Issue Date |
| 8176762 | Analytical method for use in optimizing dimensional quality in hot and cold rolling mills A device and method for prediction and/or control of the profile and/or shape of rolled metal strip. The device and method are compatible with both cluster-type and non cluster-type mills. The device and method employ a customized deflection model of the rolling mil... | 05/15/2012 |
| 8051692 | Shape detection device and shape detection method A shape detection device capable of detecting meandering of a strip with high accuracy and a method thereof. The device includes a plurality of split rolls provided in a width direction of a rolling material; a table which guides the rolling material and which is ro... | 11/08/2011 |
| 7797974 | Method and device for measuring and adjusting the evenness and/or tension of a stainless steel strip or stainless steel film during cold rolling in a 4-roll stand, particularly in a 20-roll sendzimir roll stand A method and device for measuring and adjusting the evenness and/or tension of a stainless steel strip (1) during cold rolling in a 4-roll stand (2) provided with at least one control loop (4) comprising several actuators (3), resulting i... | 09/21/2010 |
| 7430887 | Roller for determining variations in flatness 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 arrange... | 10/07/2008 |
| 7325427 | Machine for bending of long products and a method to control such a machine A machine is process monitored and controlled for continuous bending of long products to a predetermined radius by using three parallel contact-free distance meters (laser transmitters) and by measuring the distances to the bent surface on the product, by calculatin... | 02/05/2008 |
| 7305859 | Rolling mill The rolling mill comprises a pair of work rolls for rolling a plate material in the thickness direction, a guide for guiding the leading end of the plate material between the work rolls, and a rolling oil supply member for supplying rolling oil between the work roll... | 12/11/2007 |
| 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 |
| 7225652 | Graphical rolled steel sheet flatness display and method of using same A method for measuring and displaying the flatness of a rolled steel sheet is disclosed that includes the steps of measuring tension in the sheet at a plurality of locations on the surface of the sheet and determining a plurality of tension ranges into which the sen... | 06/05/2007 |
| 7185519 | Methods and apparatus for monitoring and conditioning strip material Methods and an apparatus for monitoring and conditioning strip material are disclosed. The disclosed methods and apparatus receive encoder signals and sensor data to monitor a condition of a strip material. If an undesired material condition is detected, a material ... | 03/06/2007 |
| 7181822 | Method and apparatus for controlling strip shape in hot rolling mills A hot rolling mill and method for operating the hot rolling mill where the shape of the strip is controlled by localized cooling devices positioned at intervals along work rolls in at least three lateral zones, a central and two edge zones, and capable of separately... | 02/27/2007 |
| 7059161 | Thin-strip coiler comprising a flatness measuring roll The invention relates to a method and device for measuring and influencing the strip flatness in the coiler shaft of a hot-strip mill, whereby the coiler shaft has, between a driver and a coiler, moving and stationary strip guides as well as a flatness measuring rol... | 06/13/2006 |
| 7031797 | Computer-aided method for determining desired values for controlling elements of profile and surface evenness Input variables, which describe a metal strip prior to and after the passage of a rolling stand, are fed to a material flow model. The material flow model determines online a rolling force progression in the direction of the width of the strip and fees said progress... | 04/18/2006 |
| 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 |
| 6966207 | Shape detecting apparatus A shape detecting apparatus for controlling the tension of a rolled plate, is composed of a pair of fixing members, a supporting frame and a plurality of shape detecting units. The shape detecting units are fixed detachably in a close proximity of the supporting fra... | 11/22/2005 |
| 6948347 | Graphical rolled steel sheet flatness display and method of using same A method for measuring and displaying the flatness of a rolled steel sheet is disclosed that includes the steps of measuring tension in the sheet at a plurality of locations on the surface of the sheet and determining a plurality of tension ranges into which the sen... | 09/27/2005 |
| 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 |
| 6782726 | Hot-rolling mill with flatness measuring roller The invention relates to a hot rolling mill, with at least one flatness measuring roller, pertaining to at least one rolling bed, arranged before and/or after one of the stands, which influences the settings of at least one of the stands. The aim of the invention is... | 08/31/2004 |
| 6779373 | Method for preadjusting and controlling the strip planarity in flexible single-pass and reversing rolling of a strip-shaped material web A method for preadjusting and controlling strip planarity in flexible single-pass and reversing rolling of a strip-shaped material web using at least one work roll pair forming a roll gap and back-up rolls for the work rolls, and devices for roll adjustment, roll be... | 08/24/2004 |
| 6668626 | System and a method for measuring and determining flatness A system and a method for measuring and determining flatness of a strip (1) of rolled material. Said system is comprising a measuring roll (2) having a cylindrical central structure (41) having a number of measuring devices for force/pressure registration... | 12/30/2003 |
| 6513358 | Method and device for controlling flatness A method for controlling flatness of a strip (1) of rolled material rolled to a first flatness target and coiled and that is subsequently uncoiled, and a system which employs the method. Measurements of the flatness of the strip (1) during rolling are com... | 02/04/2003 |
| 6494071 | Rolling mill facility with strip shape detection equipment, strip shape detection device, strip shape detection method and rolling method A rolling mill facility includes a single or plural rolling mills having a pair of top and bottom work rolls and that roll strip steel and strip shape detecting devices installed at least on one side of the inlet and outlet sides of the rolling mill. The ... | 12/17/2002 |
| 6427507 | Apparatus for measuring the strip flatness The present invention provides an apparatus for measuring flatness of a hot rolled strip based on a contact load of the hot rolled strip to split rolls of a looper in the hot rolling process. The split rolls are assembled in a bracket such that each split... | 08/06/2002 |
| 6393884 | Method for automatic bow adjustment The present invention relates to a method for automatic bow adjustment for a venetian blind assembly machine, said bow adjustment station comprising rollers (48; 104, 106) for guiding, bending and leveling a strip material (43; 112), and further comprisin... | 05/28/2002 |
| 6374656 | Rolling stand for plane products and method to control the planarity of said products Rolling stand (10) for plane products and method to control the planarity of said plane products, said rolling stand comprising a pair of working rolls (11a, 11b), a corresponding pair of back-up rolls (13a, 13b) and at least an intermediate roll (15a) lo... | 04/23/2002 |
| 6338262 | Method for the static and dynamic control of the planarity of flat rolled products Method to control the planarity of flat products rolled with a rolling stand (10) having a pair of working rolls (11a, 11b), a corresponding pair of back-up rolls (13a, 13b) and at least an intermediate roll (15a) placed between one of said working rolls ... | 01/15/2002 |
| 6336349 | Method for the flexible rolling of a metallic strip A method for the flexible rolling of a metallic strip in which, during the rolling procedure, the metallic strip is lead through a roll gap which is formed between two working rolls, and during the rolling operation, the roll gap is deliberately changed i... | 01/08/2002 |
| 6286349 | Flatness measurement system for metal strip The invention relates to a flatness measurement and control system for metal strip, which makes it possible to obtain improved strip or coil quality by a simple and effective measurement of departures from flatness and to control the finishing parameters ... | 09/11/2001 |
| 6269668 | Cold tandem rolling method and cold tandem rolling mill The present invention is to provide a tandem cold rolling method conducted by a tandem cold rolling mill, the number of rolling stands of which is not less than 4, wherein a rolling tension, the intensity of which is not lower than 30%, preferably not low... | 08/07/2001 |
| 6263716 | Hot strip reversing mill with a shapemetering apparatus A shape detection device is incorporated as part of a hot strip reversing mill. The shape detection device is a shape detector roll adapted to contact the metal strip. The shape detector roll is used to provide data to an automated shape control and steer... | 07/24/2001 |
| 6230532 | Method and apparatus for controlling sheet shape in sheet rolling During rolling with a rolling mill, which includes a sheet shape altering device capable of altering a mechanical sheet crown, while the sheet shape altering device is operated correspondingly with a target mechanical sheet crown set value during the dime... | 05/15/2001 |
| 6216505 | Method and apparatus for rolling a strip A method and apparatus for rolling a strip by a rolling mill wherein one back-up roll of the pair of back-up rolls is a variable crown roll having a single oil chamber and the other back-up roll is a variable crown roll having a plurality of oil chambers.... | 04/17/2001 |
| 6199418 | Flatness control apparatus for a hot rolling mill A flatness control apparatus for controlling the flatness of a strip in a hot rolling mill, wherein a strip width meter measures center line error values of the strip. The center line error values are the offsets of the center of the strip from the center... | 03/13/2001 |
| 6164104 | Method of and apparatus for measuring planarity of metal strip The planarity of a strip, especially metal strip is measured in a measurement zone in which the tension of the strip has been reduced in a targeted way by braking the strip. The braking force should be practically equal to the strip tension.... | 12/26/2000 |
| 6161405 | Apparatus for controlling a rolling mill based on a strip crown of a strip and the same A rolling mill is equipped with a work roll bending apparatus for controlling the strip crown of the strip. Upstream and downstream of the rolling mill are located strip crown meters which measure the thickness of the strip in the transverse direction. Th... | 12/19/2000 |
| 6158260 | Universal roll crossing system A method for hot rolling and cold rolling metal strip to a finish strip thickness, profile and flatness in a series of rolling mills each having roll bending and roll crossing capabilities to effect a plurality of roll gap profiles. A control method utili... | 12/12/2000 |
| 5970765 | Method and apparatus for rolling strip A method of rolling strip in a strip rolling train having at least two roll stands, each roll stand having horizontally adjustable upper and lower work rolls, wherein the work rolls act alone as a two-high stand or each work roll is supported directly or ... | 10/26/1999 |
| 5964114 | Method of regulating the stress distribution in metal strips or sheet, especially of nonferromagnetic metals A strip line or line for processing nonferrous metal sheets and plates has linear motor stators provided for contactless adjustment of the tension or stress distribution in response to planarity and profile measurements.... | 10/12/1999 |
| 5960657 | Method and apparatus for the control of rolling mills The present invention includes the following constituent elements, namely: firstly, calculation of the set-up rolling conditions having the target values of rolling load, strip width and strip crown and the set values of the actuators on the basis of externall... | 10/05/1999 |
| 5950478 | Hot tandem rolling mill There are provided an even number of paired roll-shift type rolling mills 12a, 12b and a controller 16 for controlling the rolling mills 12a, 12b. Each of upper and lower work rolls 13 of each of the roll-shift type rolling mills has a predetermined crown... | 09/14/1999 |
| 5927117 | Methods to measure and control strip shape in rolling A method to measure strip shape in rolling and a method of using the measuring method to control the same are provided in present invention, which can dramatically simplify the computation during the measurement of strip shape. On the basis of a prior mat... | 07/27/1999 |
