Class 72/11.8 - Sensing thickness

Subclass of Class 72 - Metal deforming
Definition: Subject matter wherein the work includes a greater and a
No. of patents: 47
Last issue date: 05/10/2011

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Number	Title	Issue Date
7937978	Elongation rolling control method An elongation rolling control method is provided which can manufacture a hollow shell of high dimensional accuracy and can suppress rolling problems. It is an elongation rolling control method in which the groove bottom wall thickness of a hollow shell P in stand #	05/10/2011
7540178	Rolling installation and method for producing metal strips The invention relates to a rolling plant (100) and to a method for its operation. Known rolling plants (100) typically comprise a reversing stand (110) for rolling a metal strip (200) in a plurality of rolling operations until the metal s...	06/02/2009
7341096	Method for processing a continuously cast metal slab or strip, and plate or strip produced in this way The invention relates to a method for processing a continuously cast metal slab or strip, in which the slab or strip is passed between a set of rotating rolls of a rolling mill stand in order to roll the slab or strip. According to the invention, the rolls of the ro...	03/11/2008
7333925	Manufacturing method and manufacturing apparatus of pipe, thickness deviation information derivation apparatus, and computer program A complex Fourier transform is performed on measured values of wall thickness at points in a cross section of a pipe in an axial direction, types of thickness deviation are classified, thickness deviation amount is calculated from the absolute value of the complex F...	02/19/2008
7310982	Rolling method and rolling apparatus for flat-rolled metal materials The invention provides a rolling method for a flat-rolled metal material and a rolling apparatus for the method each capable of stably producing a flat-rolled metal material free from camber or having an extremely light camber. The method is a rolling method of a fl...	12/25/2007
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
7251978	Roll stand for producing plane roll strips having a desired strip profile superelevation 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 sup...	08/07/2007
7185520	Dynamic thickness correction The invention relates to a method and a device for correcting the thickness of a metal strip during rolling comprising a roll stand with adjusting elements to regulate the thickness of the strip and at least one take-up coiler. The object to provide a method and a d...	03/06/2007
7093469	Manufacturing method and manufacturing apparatus of pipe, thickness deviation information derivation apparatus, and computer program A complex Fourier transform is performed on measured values of wall thickness at points in a cross section of a pipe in an axial direction, types of thickness deviation are classified, thickness deviation amount is calculated from the absolute value of the complex F...	08/22/2006
7076979	Method and device for producing curved lengths of spring band steel In a method and a device for producing curved lengths of spring band steel in order to produce precisely toleranced, dimensionally stable bending radii, the spring band steel (10) pass through a bending unit (20), which is comprised of three support po...	07/18/2006
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
7028518	Method of producing seamless steel tubes A method of producing a seamless steel tube to enable it to suppress not only the deviations in wall thickness occurring in the direction of reduction in a mandrel mill but also the derivations in thickness occurring at places deviating from the direction of reducti...	04/18/2006
6945083	Method of and apparatus for determining the eccentricity of a hollow billet The eccentricity of a hollow billet is measured at the outlet of an inclined-roll rolling mill by launching an ultrasonic pulse into the billet from a laser of a measuring device and measuring the transit time of an echo pulse also utilizing a laser and an optical a...	09/20/2005
6305206	Reversible rolling method and reversible rolling system A pass schedule calculation apparatus calculates pass schedule and inputs the schedule to a preset apparatus which is plate thickness control means. The present apparatus controls a draft motor before rolling to set an appropriate initial roll clearance, ...	10/23/2001
6286348	Strip thickness controller for rolling mill A strip thickness controller for a rolling mill, which is capable of reducing a delivery-side strip thickness deviation due to an eccentricity of a backup roll even in a rolling mill incapable of easily performing a kiss-roll. The strip thickness controll...	09/11/2001
6263714	Periodic gauge deviation compensation system A control system is provided for a rolling mill that feeds sheet material from an unwind reel to a rewind reel, passing it between a pair of work rolls. The control system includes a speed sensor for sensing speed of the sheet material and a sensor for me...	07/24/2001
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
6240756	Path scheduling method and system for rolling mills A tandem rolling mill (FM) has mill stands (Fi; i=1 to 7) to be controlled in conformity with given rolling conditions (j) to execute a given path schedule for a coil (1) to be rolled by rolls (WR) of the mill stands (Fi) to scheduled thicknesses (hi...	06/05/2001
6227021	Control apparatus and method for a hot rolling mill A control apparatus for a hot rolling mill having a plurality of rolling stands, including a roll gap tension controller configured to control a roll gap of one of the rolling stands so that a detected interstand tension value of a rolled material positio...	05/08/2001
6220068	Process and device for reducing the edge drop of a laminated strip The invention relates to a method for reducing the edge drop of a rolled strip in a roll train having one or more roll stands, at least one roll stand having actuators for reducing the edge drop, which are set as a function of the edge drop of the rolled ...	04/24/2001
6216504	Traveling sheet thickness changing method for cold tandem roller Set values of a gauge-alteration-in-rolling amount after the next (i+1)-th stand and subsequent stands are modified, using the rolling results obtained when a leading end of a succeeding material passes through the i-th stand and the gauge results of the ...	04/17/2001
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
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
5961899	Vibration control apparatus and method for calender rolls and the like A vibration control apparatus (20) and method for a calender (18) for controlling vibration between two or more rolls (ex. 22, 24) which controls vibration induced thickness variations in a medium (27) exiting from the nip. The apparatus (20) includes a f...	10/05/1999
5934129	System to control the surface profile of the back-up rolls in four high rolling stands and relative back-up roll System to control the surface profile of the back-up rolls in four-high rolling stands (11) to produce flat products (14), the four-high rolling stand (11) comprising working rolls (12) and back-up rolls, wherein each back-up roll (13) comprises deforming...	08/10/1999
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
5875672	Method and apparatus for manufacturing metallic support beams for windscreen wiper blade assemblies A method and apparatus for manufacturing metallic support beams for windscreen wiper blade assemblies, which includes a supply of metallic strip feedstock in a cold condition, the feedstock being passed in a cold condition through a pair of opposed, space...	03/02/1999
5875663	Rolling method and rolling mill of strip for reducing edge drop It is possible, in a rolling method of a strip shifting one-side-tapered work rolls in the axial direction and causing the upper and the lower work rolls to cross each other, to appropriately set a quantity of shift and a crossing angle and to improve an ...	03/02/1999
5860304	Strip crown measuring method and control method for continuous rolling machines In the continuous rolling mills, the strip crown and the strip flatness of a strip can be controlled to any desired value. In the strip crown measuring method, the strip crown of the first stage rolling mill can be obtained by adding the set target strip ...	01/19/1999
5771724	Method and apparatus for an anticipatory thickness control in foil rolling A method and an apparatus for an anticipatory thickness control in foil rolling by using characteristic lines stored in a process control computer of the individual manipulated variables (for example, strip tensions, rolling speeds) for various operating ...	06/30/1998
5653137	Five-high rolling mill A multi-high rolling mill is disclosed which includes an upper work roll backed by an intermediate roll and a backup roll and a lower work roll backed up by a single backup roll. Control benders are provided on each of the intermediate roll and the upper ...	08/05/1997
5651281	Method and apparatus for rolling rolled strips A method for rolling rolled strips 3, 4 in a hot strip rolling mill 6, comprises at least two roll stands 6, 7, with horizontally adjustable top and bottom work rolls 10, 11. Each work roll is backed up directly or through an intermediate roll by a backup...	07/29/1997
5609053	Constant reduction multi-stand hot rolling mill set-up method This invention relates to a method and apparatus for improving rolling mill efficiency by providing modified fixed setup parameters according to the class of the material being rolled through the following steps: (1) divide the products produced by the ro...	03/11/1997
5600982	Method for suppressing the influence of roll eccentricities on the control of the rolled product thickness in a roll stand In the control of the rolled product thickness in a roll stand, to suppress the influence of roll eccentricities, it is known to provide a dead zone which is insensitive to signal fluctuations caused by the roll eccentricities and to vary the zone width o...	02/11/1997
5560236	Method of rolling and cutting endless hot-rolled steel strip In a rolling and cutting method for an endless hot-rolled steel strip comprising continuous hot rolling and joining rough-rolled slabs to each other with a joint having a boundary between slabs, subjecting the joined rough-rolled strip continuously to hot...	10/01/1996
5495735	System for controlling strip thickness in rolling mills A system for controlling a thickness of a strip being rolled by a rolling mill having more than two rolling stands, in tandem configuration. A subcontrol unit controls a rolling speed and a rolling load of a final rolling stand according to a predetermine...	03/05/1996
5142891	Thickness control system for rolling mill A tension controller is disposed on an entry side or both on entry and exit sides of a rolling mill to quickly suppress tension fluctuation due to change of roll gap....	09/01/1992
4711109	Controlling thickness and planarity of hot rolled strips A metallic strip is hot-rolled in a succession of roll stands arranged in a row by passing the strip longitudinally in a travel direction through the stands. The strip is then compressed in the upstream stands to substantially reduce its thickness measure...	12/08/1987
4669293	Continuous rolling method and continuous rolling mill A continuous rolling mill is constructed by arranging driven horizontal rolling mills and undriven vertical rolling mills alternately and determining the values of the thickness of the rolled material between adjacent stands, the interaxial distance betwe...	06/02/1987
4576027	Rolling mill A rolling mill in which the size of a rolling material at the outgoing side of rolls and the reaction force from the material exerted to the rolls are successively obtained from respective sampling periods to be used as data for calculating the most relia...	03/18/1986

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Class 72/11.8 - Sensing thickness