СПОСОБ ИЗГОТОВЛЕНИЯ БЕСШОВНЫХ СТАЛЬНЫХ ТРУБ

Способ изготовления бесшовных стальных труб, в котором измеряют толщину стенки по окружности бесшовной стальной трубы, прокатываемой в производственной линии, включающий непрерывный стан для прокатки бесшовных труб на оправке, в котором совокупность обжимных клетей с обжимающими валками расположена сообразно разным направлениям обжатия, и, на основании результатов указанных измерений, регулируют отдельно и индивидуально положения обоих концов каждой оси обжимающих валков по меньшей мере в последних обжимных клетях стана для прокатки бесшовных труб на оправке, в результате чего отклонения по толщине стенки можно свести к минимуму.

Устройство для регулирования толщины полосы на непрерывном стане холодной прокатки

Устройство для регулирования толщины полосы на непрерывном стане холодной прокатки

Устройство для регулирования толщины полосы

Способ автоматического регулирования толщины полосы в станах холодной прокатки

DEVICE FOR STAND AUTOMATIC ADJUSTMENT

Устройство регулирования толщины полосы при прокатке в отрицательном поле допусков

Способ настройки дрессировочного стана

CtTOCOB НАСТРОЙКИ ДРЕССИРОВОЧНОГд СТАНА, включающий корректировку межвалкового зазора в процессе СЕСОШ;| дз йАТЕИте ;- ТЕ111 Ч&С. ЕМйЛ И4 ;ипервоначального обжатия полосы п6 результатам измерения прокатки , о тл и ч аюпий ся тем, что, с целью обеспечения возможности получения проката с гарантированным уровнем механических свойств, даессировку начинают при величине межвалкового зазора, обеспечивающей относительное обжатие в др1апазоне 0,20 ,5 процента, затем межвалковый зазор уменьшают, одновременно производя определение и сравнение последовательного ряда величин производных усилий по обжатию, а при превияении разницы последугапей производной усилия по обжатию с определенной по прерыду11ему измерению не ленее 10% § настройку стана прекращают. (Л ел 4i 4ii ...

Способ стабилизации толщины листа на реверсивном стане

Изобретение относится к автоматизации прокатного производства. Цель изобретения - повышение точности стабилизации толщины листа. Цель достигается за счет более точного прогнозирования отклонения давления на валки(пропорционального отклонению толщины) по длине листа перед его входом в клеть. Для этого измеряют давление по всей длине листа в равноудаленных сечениях в пропуске, предшествующем регулируемому, и определяют отклонение давления от минимального измеренного. Измеряют температуру листа на входе клети в тех же сечениях, что и давление и определяют отклонение температуры переднего конца листа. Суммарным сигналом по отклонению давления и температуры в одинаковых сечениях листа управляют рассогласованием скоростей приводных двигателей с упреждением до входа контролируемого сечения листа в очаг деформации . 4 ил. w Ј ...

Устройство автоматической коррекцииТОлщиНы пОлОСы CTAHA гОРячЕй пРОКАТКи

Устройство для автоматического регулирования толщины полосы на прокатном стане

УСТРОЙСТВО ДЛЯ АВТОМАТИЧЕСКОГО РЕГУЛИРОВАНИЯ ТОЛЩИНЫ ПОЛОСЫ НА ПРОКАТНОМ СТАНЕ, Содержащее о олщиномеры , установленные на входе. и выходе клети, аналого-цифровой преобразователь, вход которого соединен с выходом толщиномера, вычислитель расчетной длины полосы, стробирующий узел, узел 3с1держки, сдвигагаций регистр, вход первой  чейки которого соединен с выходом стробирующего узла, измерительные ролики на входе и выходе клети, первый и второй датчики импульсов, механически св занные с измерительными роликами соответственно на входе и выходе клети, счетчик, выход которого соединен с тактирующим входом сдвигающего регистра и через узел задержки - с управл ющим входом стробирующего узла, регул торы раствора валков и нат жени , отличают ет е с   тем, что, с целью повышени  точности регулировани  и надежности работы, оно дополнительно содержит реверсивный счетчик, регистр и задатчик заданной длины полосы, при -том выход задатчика заданной длины полосы соединен с входом записи счетчика , счетный вход которого подсоединен к выходу второго датчика импу льсов , вход вычислител  расчетной длины полосы соединен с выходом аналого-цифрового преобразовател , а выход - с информационным входом стробирующего узла, выход последней  чей ки сдвигающего регистра соединен свходом записи реверсивного счетчика, счетный вход которого подсоединен к ВЫХОДУ первого датчика импульсов, стробирующий вход -..к выходу счетчика , а выход - к информационному входу регистра, тактирующий вход-которого подсоединен к выходу счетчика, выход регистра соединен с регул то4 рами раствора валков и нат жени . Ф A DEVICE FOR AUTOMATIC REGULATION OF THE STRIP THICKNESS ON A ROLLEN MILL Containing the thickness gauges installed at the entrance. and the output of the stand, an analog-to-digital converter, the input of which is connected to the output of the thickness gauge, a calculator of the estimated strip length, a gate node, a node 3с1 of support, shifting register, the input of the first cell of which is ...

Устройство для автоматического регулирования толщины полосы на непрерывном стане горячей прокатки

Устройство для регулирования геометрических размеров проката на стане непрерывной прокатки

... 1. УСТРОЙСТВО ДЛЯ РЕГУЖРОВАНИЯ ГЕОИЕТРИЧЕСКИХ PAStEPOB ПРОКАТА НА СТАНЕ НЕПРЕРЫВНОЙ ПРОКАТКИ, каждая клеть которого оборудована системами управления прокатным электродвигателем и нажимным винтом, содержащее первый блок коррекции скорости, измеритель отклонения.первого геометрического размера проката, причем выход последнего соединен с входом системы управления прокатным электродвигателем последукицей клети через первый блок коррекции скорости, отличающееся тем, что, с целью повышения точности регулирования, оно дополнительно содержит блок коррекции формы проката, второй блок коррекции скорости и первый блок коррекции межвалкового зазора, выход которого соединен с входом системы управления нажимным винтом предыдущей клетки,а вход - с одним выходом блока коррекции формы проката, другой выход которого через второй блок коррекции скорости соединен с входами систем управления прокатными электродвигателями смежных клетей, первый и второй входы блока коррекции формы проката соединены соответственно ...

ANORDNUNG ZUR REGELUNG DER DICKE VON WALZGUT

CONTROL DEVICE FOR A CONTINUOUS ROLLING MACHINE

MESSVORRICHTUNG ZUR ERFASSUNG VON WALZGUTEIGENSCHAFTEN UND ZUR ENTSPRECHENDEN WALZENANSTELLUNG AN EINEM WALZGERUEST

Dickenregeleinrichtung fuer Walzmaschinen

VERFAHREN UND VORRICHTUNG ZUM ERZEUGEN EINES SIGNALS ZUR EXZENTRIZITAETSKOMPENSATION ZUR MASS- ODER LAGESTEUERUNG IN EINEM WALZGERUEST EINER WALZSTRASSE O. DGL.

VERFAHREN ZUR KOMPENSIERUNG VON WALZENUNRUNDHEITEN AN WALZWERKEN, SOWIE WALZWERK ZUR AUSFUEHRUNG DES VERFAHRENS

METHOD AND APPARATUS FOR IMPROVED SENSING OF ROLL SEPARATION FORCE IN A ROLLING MILL

Speed compensation in rolling mill gauge control system

... 892,059. Automatic thickness control systems. CANADIAN WESTINGHOUSE CO. Ltd. Dec. 8, 1958 [Jan. 2, 1958], No. 39466/58. Class 38 (4). In apparatus for reducing the thickness of material passed, under longitudinal tension, between opposed members applying a transverse force, signals dependent on (a) the separation setting of the opposed members, (b) the force between the opposed members, and (c) the speed of travel of the material, are combined to control the separation setting and/or the longitudinal tension of the material. In a rolling mill, Fig. 1, material 6 passes back and forth between rolls 2, 3, the separation between which is adjustable by screw-down motors 12. Longitudinal tension is applied to the material by dynamo-electric machines 22, 23 one of which acts as a motor for reeling up while the other acts as a drag generator to brake the supply reel. A suitable tension is set manually by adjustment of a device 25 associated with controller 24 for the dynamoelectric machines. Electric ...

PROCEDURE FOR ROLLING METAL BANDS AND ROLLING WORK FOR THE EXECUTION OF THE PROCEDURE

VERSTELLEINRICHTUNG ZUM REGELN DES GESAMT- STRECKGRADES EINES STRECKREDUZIERWALZWERKES

ADJUSTMENT DEVICE FOR REGULATING THE ENTIRE OF STRETCHING DEGREE OF A STRETCH-REDUCING MILL

Verfahren zum Ausführen einer Vorschub-Dicken-Regelung in einem Tandemkaltwalzwerk

The present invention relates to the field of strip cold rolling, and in particular to a thickness control method for strips in a tandem cold mill. A performance feed-forward thickness control method in a tandem cold mill comprises selecting one or more frames as virtual indirect measuring instruments for the strip performance, in which the frame S1 must be used as a virtual indirect measuring instrument for the strip performance; calculating the deformation resistance fluctuation of supplied materials, providing a load cell on the frames that are selected as the indirect measuring instruments for the strip performance, and obtaining the deformation resistance fluctuation of the supplied materials of the frame Si by calculation; finally, calculating the feed-forward adjustment amount of each frame. The present invention performs the feed-forward thickness control through the deformation resistance force of the supplied materials measured indirectly, and by measuring the deformation resistance ...

ARRANGEMENT FOR THE REGULATION OF THE THICKNESS OF WORK MATERIAL

Rule circuit for collection and evaluation of rolling force fluctuations with a roll stand, caused by roller eccentricities

ECCENTRICITY SIGNAL FOR ROLLING MILL CONTROL

ROLLING MILL GAUGE CONTROL METHOD AND APPARATUS INCLUDING X-RAY CORRECTION

FEED FORWARD AUTOMATIC THICKNESS CONTROLLING METHOD

Control apparatus for a continuous hot rolling mill

ROLLING MILL CONTROL SYSTEM

AUTOMATIC GAUGE CONTROL SYSTEM FOR TANDEM ROLLING MILLS

METHOD AND SYSTEM FOR GENERATING AN ECCENTRICITY COMPENSATION SIGNAL FOR GAUGE CONTROL OF A ROLLING MILL

GA1-3R-6940 METHOD AND SYSTEM FOR GENERATING AN ECCENTRICITY COMPENSATION SIGNAL FOR GAUGE CONTROL OR POSITION CONTROL OF A ROLLING MILL A system and method for adjusting the device used to exert a force against a strip being rolled by a rolling mill having at least one rotating backup roll. This system and method includes creating a signal F generally corresponding to force FO created by the device and the force FECC caused by eccentricity and other variables in phase with the rotation of the backup roll, constructing an analog signal corresponding to the eccentricity signal by using an adaptive digital filter having a first digital input generally corresponding to the eccentricity force FECC, a second input correlated with the rotation of the backup roll and a coefficient adjusting algorithm responsive to the first input and a preselected convergence factor (.mu.) and a correlated signal with an incremented value correlated with and driven by the rotation of the backup roll and adjusting ...

METHOD AND APPARATUS FOR CONTROLLING CROWN IN A PLATE ROLLING MILL

INTERSTAND TENSION REGULATOR FOR A MULTISTAND ROLLING MILL

ARRANGEMENT FOR REGULATING A ROLLING MILL FOR METAL ROLLING

DYNAMIC THICKNESS CORRECTION

The invention relates to a method and device for correcting the thickness of a metallic strip (1) during rolling with a roll stand (2) equipped with setting elements for regulating the thickness of the metallic strip and with at least one coiler (4). The aim of the invention is to provide a method and device for correcting the thickness of a metallic strip during rolling with a roll stand, which ensures the production of rolled strips with a reduced thickness tolerance. To this end, the invention provides that an average strip thickness of a strip section is determined from at least one strip length measurement and from the measurement of the associated rotation of the coiler, and the setting elements of the roll stand are controlled at least according to the average strip thickness of the strip section. The inventive method enables the setting elements to be controlled virtually independent of the surrounding conditions of the roll stand thereby enabling the thickness tolerances of the ...

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 points (conditions of operation) or by using an on-line operating physical computing model, also in combination with a monitor control. The method includes the steps of determining the thickness deviations of the foil at the entry side of the roll stand and of compensating the thickness deviations by an anticipatory thickness control. The apparatus includes a thickness measuring device between the running-off reel and the rolling mill or the roll gap of the roll stand. The thickness measuring device is connected to a superordinated process control computer. Following the thickness measuring device is arranged a tensioning unit which serves to change the travel path of the foil strip between the running-off reel and the roll gap. For example ...

Dispositif de réglage pour laminoir

Verfahren und Einrichtung zur Erfassung und Auswertung von durch Walzenexzentrizität hervorgerufenen Walzkraftschwankungen in einem Walzgerüst

PROCEDURE AND DEVICE FOR ROLLING ALUMINUM FOILS.

ARRANGEMENT TO THE AUTOMATED CONTROL, BALANCE AND DIAGNOSIS OF CONNECTION AND/OR FOIL ROLLING PROCESSES.

СПОСОБ И УСТРОЙСТВО ДЛЯ ДИНАМИЧЕСКОЙ КОРРЕКЦИИ ТОЛЩИНЫ МЕТАЛЛИЧЕСКОЙ ЛЕНТЫ ИЛИ ПОЛОСЫ

В заявке описаны способ и устройство для коррекции толщины металлической ленты или полосы (1) при ее прокатке в прокатной клети (2), оснащенной исполнительными элементами для регулирования толщины металлической ленты или полосы, с последующей намоткой металлической ленты или полосы по меньшей мере на одну моталку (4). Поставленная в изобретении задача, состоявшая в разработке способа и устройства для коррекции толщины металлической ленты или полосы при ее прокатке в прокатной клети, которые обеспечивали бы изготовление катаных полос с меньшим разбросом значений их толщины, в отношении способа решается благодаря тому, что на основе результатов по меньшей мере одного измерения длины металлической ленты или полосы и результатов измерения соответствующего числа оборотов моталки определяют среднюю толщину участка металлической ленты или полосы и управляют исполнительными элементами прокатной клети по меньшей мере в зависимости от этого определенного значения средней толщины участка металлической ...

METHOD AND DEVICE FOR DYNAMIC CORRECTION THE THICKNESS OF A METALLIC STRIP

METHOD FOR MINIMIZING THICKENED ENDS DURING THE ROLLING OF PIPES IN A STRETCH REDUCING MILL

STEEL PLANT CONTROL DEVICE

在张力减径机内轧管时管端增厚极小化的方法

... 本发明涉及一种在张力减径机内轧管时管端增厚极小化的方法，为此在管始端和管末端通过张力减径机时暂时改变各被驱动机架的扭矩，使得管端以比稳态的轧辊转速比大的轧辊转速比轧制。其中，在稳态与提高了的转速比之间调整为比稳态转速比小的转速比。 ...

Device control apparatus and method, and rolling control apparatus and method

Automatic device of control of the gauges

PROCEEDED OF ROLLING IMPROVES

ROLLING STAND CONTROL SYSTEM

GAGE CONTROL FOR MULTISTAND ROLLING MILL

ROLLING MILL CONTROL

METHOD AND DEVICE FOR CORRECTING THICKNESS

INTERSTAND TENSION REGULATOR FOR A MULTISTAND ROLLING MILL

Control device for continuous rolling machine

A control device for a continuous rolling machine effects feedback control by measuring vertical and lateral dimensions at a point after an ith mill stand, and by controlling the tension in the material between an i-1th and the ith mill stand and the position of the ith mill stand to reduce the differences between the detected dimensions and reference dimensions to zero. A shape correction device may be used which calculates lateral and vertical dimension change values for the i-1th stand, which are used to control the position of the i-1th stand and the tension in the material between an i-2th mill stand and the i-1th stand to assist in bringing the actual dimensional output values into coincidence with the reference values.

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.

Crown control compensation controlling method in multiple roll mill

A crown control compensation controlling method in a multiple roll mill, in which a variation of rolling load caused by crown control is obtained from a crown control quantity. A wedge type hydraulic reduction device is operated according to the variation of rolling load to thereby cancel such rolling load variation. Both an automatic gauge control (AGC) and an automatic shape control (AFC) can be attained while preventing a change in plate thickness caused by crown control.

Method for operating a steckel mill

A Steckel mill has a reversing unit for rolling a rolled product and winding furnaces arranged on the entrance side and exit side of the reversing unit. When rolling the rolled product in a region of a head of the rolled product, a target thickness of the rolled product is ignored, while measuring a current thickness and/or a hardness of the rolled product and comparing this with a setpoint value. One the measured variable reaches or is below the setpoint value, the reversing unit is operated with a view to achieving the target thickness of the rolled product. The Steckel mill is operated to allow for rolling of a cold, non-rollable piece of the rolled product, so that malfunctions are avoided and the usable part of the rolled product is as large as possible.

Rolling mill control for tandem rolling

In a method of operating a tandem rolling mill the speeds of the mill rolls are kept constant, a signal (V.H d) representing the mass flow of material entering the first stand (S1) is compared with a signal (V2href) representing the desired mass flow of material leaving the last mill stans (Sn) ans the difference, if any, is used to control the load in the first stand (S1) in the sense to reduce the defference sustantially to zero.

AUTOMATIC PLATE THICKNESS CONTROL METHOD

PURPOSE: To determine set values low and improve the yield of steel products by using the one of center parts in the initial period of rolling start and the one of edge parts at the time when the operation of rolling mill control systems have stabilized, as plate thickness information. CONSTITUTION: A thickness gauge 5 actually measures the plate thickness of the center part of a steel plate 1. Mean values are operated with a memory operator 51 and the deviation from the set value is operated. The deviation from the set value is distributed to each of roll stands 21W27. Screw change amounts are operated by respective screw change amount operators 8 and based on these, motors 3 are operated to control roll gaps. A pulse generator 11 is connected to the roll stand 27 and the pulses thereof are inputted to a process control computer. When the shape of the plate crown has stabilized, the plate thickness set value of the edge part of the steel plate 1 is inputted from the process control computer ...

METHOD FOR REMOVING ECCENTRICITY OF ROLL OF ROLLING MILL

PURPOSE: To remove the variation of roll gap caused by the eccentricity of the roll by exactly and directly finding the eccentric waveform of a roll of a rolling mill. CONSTITUTION: In the rolling mill having a hydraulic rolling down device 6, a range finder 4 to detect the distance to the side face of the roll and a position detector 10 to detect the position of the roll are mounted on backup rolls 1A, 1B and work rolls 3A, 3B. A roll eccentricity removing device 5 finds eccentric waveforms of the backup rolls 1A, 1B and the work rolls 3A, 3B based on the variation of the detected distance L and the position δ and obtained eccentric waveform signals are transferred to a hydraulic rolling down device 6 and roll gap variation by eccentricity of the roll is removed. COPYRIGHT: (C)1992,JPO&Japio ...

THICKNESS CONTROL METHOD OF DEFORMED STEEL PLATE

PROBLEM TO BE SOLVED: To provide a thickness control method of a deformed steel plate capable of improving the thickness accuracy of a deformed steel plate, in particular, the deformed steel plate having parallel parts on both ends thereof, for example, a unidirectional-deformed steel plate having parallel parts. SOLUTION: When rolling a deformed steel plate having parallel parts on both ends by a reverse rolling mill, the thickness of at least one of the parallel parts of the deformed steel plate is measured at latest in the pass before the final draft, the record of the thickness of the parallel part is calculated, and the difference between the record and the gage meter thickness of the thickness of the parallel part in the pass is calculated as the offset amount. The gage meter thickness of the thickness of the parallel part and the thickness of the other parallel part in the next pass is corrected based on the calculated offset amount. COPYRIGHT: (C)2007,JPO&INPIT ...

METHOD AND DEVICE FOR ROLLING MILL CONTROL

PURPOSE: To provide a rolling mill control method that suppresses sudden change in command when changing control parameter and that safely controls a rolling mill while a high responsiveness is maintained. CONSTITUTION: The parameter Fx , Fe , FR, Fd of each control mechanism is corrected by a control parameter correcting mechanism 41, with a change in the operating point. The state quantum x is subtracted from the previous value by a differential mechanism 51-1, the state quantum differential value was multiplied by the coefficient Fx by a state feedback mechanism 52, and a deviation value is determined for the manipulated variable of a screw-down component and a velocity component. This deviation value is integrated to the previous manipulated variable by an integrating mechanism 53 and outputted to a screw- down device and a roll driving device of a rolling mill 1. A prediction value is given for a few steps ahead (future) from the controlled point of time, by a command generating mechanism ...

METHOD FOR CONTROLLING PLATE THICKNESS IN ROLL CROSS ROLLING MILL

PURPOSE: To prevent the generation of deviation in a plate thickness in the width direction of a rolled stock by detecting thrust force developed in a backup roll of a work roll cross rolling mill, correcting and controlling the rolling reduction force at the work side and the drive side. CONSTITUTION: At the time of rolling, upper and lower work rolls 2 are mutually crossed, and by both rolling reduction cylinders 4, while executing the rolling reduction from the work side W and the drive side D, a rolled stock 1 is rolled. In order to execute gage meter system plate thickness control, rolling reduction signals PW, PD at the work side W and the drive side D detected by rolling reduction detectors 5, cylinder displacement signals ΔyW, ΔyD at the work side W and the drive side D detected by rolling reduction position detectors 6 and further, backup roll thrust force FTB detected by a thrust force detector 11 are received and an arithmetic processing is executed by a control device 12. As ...

METHOD FOR BEGINNING PLATE THICKNESS CONTROL IN HOT TANDEM ROLLING MILLS

PURPOSE: To promptly begin the control of plate thickness and to reduce an off-gage length by judging the convergency of a plate velocity between stands by a looper angle and an angular velocity between the stands before beginning the control of plate thickness and beginning the control of the plate thickness. CONSTITUTION: The criterion by the looper angle and the angular velocity between the stands making the element of the convergent decision of the plate velocity is set when an actually measured angle lies near the target value and the absolute value of the measured angular velocity is small and given by expression I and II. In the expressions, θref,i is the target angle of the i-th looper, θfbk,i is the measured angle of the i-th looper, α1 is the decision value in the expression I of the i-th looper and βi is the decision value in the expression II of the i-th looper. In the monitor AGC control, when both expressions I, II are satisfied to all from the looper directly before the foremost ...

ROLL ECCENTRICITY REMOVING DEVICE

PURPOSE: To prevent the variation in a plate thickness by estimating the eccentricity of backup rolls at the driving side and work side with its separation and by correcting respectively the backup roll chock position based on each eccentricity estimating signal. CONSTITUTION: Rolling load detecting devices 11, 12 at driving side and work side are provided and the angle of rotation detecting devices 21, 22 of the upper and lower backup roll B1, B2 are arranged as well. Moreover, the estimating waveform of the roll eccentricity at driving side and work side is respectively operated by providing a roll eccentricity estimation arithmetic unit 31. Then, a roll eccentricity control output arithmetic unit 41 compensates the variation in the rolling reduction position by finding a roll eccentricity waveform and the roll eccentricity control signal of reverse phase on the driving side and work side respectively based on the eccentric waveform found by the arithmetic unit 31 and the angle of rotation ...

METHOD AND DEVICE FOR CONTROLLING PLATE THICKNESS IN TANDEM ROLLING MILL

PURPOSE: To provide a method and device for controlling plate thickness in tandem rolling mill in which a load balance is not disturbed during a rolling. CONSTITUTION: A distribution gain at the time of distributing the plate thickness deviation signal, which is detected by a plate thickness meter 5 provided on the exit side of the stand 4 of a tandem rolling mill, to each stand as a speed correction signal is decided by a device 101 for deciding the distribution of quantity for correcting plate thickness, based on the signal for the loaded state of each stand taken in by motor controlling devices 21-24. This speed correction signal is added to the speed command value of each stand, which value is the output of speed command devices 31-34, and transmitted to the motor controlling devices 21-24, controlling the rotation of motors 11-14. Consequently, a stable rolling is made possible without disturbing the load balance, and improvement is expectable in the accuracy of the plate thickness ...

METHOD FOR ROLLING SHAPE

PROBLEM TO BE SOLVED: To provide the rolling method of shapes by which the shapes are rolled with high dimensional accuracy. SOLUTION: The rolling method is composed so that, in a rolling stage including at least one or more processes where three passes of universal rolling, edger rolling and universal rolling are continued, rolling load is measured at each rolling pass and roll interval is set based on the measured rolling load. In such a case, based on the measured load of the universal rolling at two passes before that universal rolling and the measured rolling load of the edger rolling at one pass before, the thickness of a material on the inlet side of that universal rolling is predicted and the roll interval between the vertical rolls of that universal rolling pass is set based on the estimated thickness of the material. COPYRIGHT: (C)1997,JPO ...

METHOD FOR CONTROLLING TENSION BETWEEN STANDS OF TANDEM ROLLING MILL

PURPOSE: To stably control tension without generating interaction between stands by finding variation of the draft position of a roll and changing the draft position of the roll of each stand by an expression based on the inlet side tensions of rolling stands and those target values. CONSTITUTION: Variations △S1, △S2,...△Sn of draft positions of the rolls are obtd. by the equation I based on inlet side tensions △T0, △T1,...△T(n-1) of (n) continuous rolling stands where n≥3 and those target values △Tt0, △Tt1,...△Tt(n-1) and draft positions of rolls of stands 1, 2,...n are changed by the variations. Cij is a function of the Laplace operator S and subjected to quantization with Qij being the function of the Laplace operator S by expressions II, III. Rij is a function of the Laplace operator S. Tensions between stands are converged stably into the respective target values without disturbing the tension control of other stands by changing draft positions of the adjacent stands. COPYRIGHT: (C ...

METHOD OF CONTROLLING TUBE THICKNESS IN PLUG ROLLING WORK

REIKANATSUENNIOKERU ITAATSUSEIGYOHOHO

CONTROLLING DEVICE FOR ROLL ECCENTRICITY

PURPOSE: To eliminate the phase lag of hydraulic rolling down, by providing a device used for obtaining the eccentricity frequency of back up rolls by counting phase signals for a fixed time and a function generator outputting the phase signals in accordance with said frequency to calculate the quantity of roll eccentricity earlier by the number of pulses equivalent to that of said phase signals. CONSTITUTION: Pulse signals (i), detected by pulse generators 3 attached to the shaft ends of back up rolls 2, are transmitted to a Fourier series expanding device 4 and to a device 5 used for determining the predicting angle of phase lag, and at the same time, signals detected by a load cell 6 are transmitted to said device 4. Further, the signals are respectively outputted from the device 5 to the device 4, and from the device 4 to a servovalve 8 used for controlling the quantity and pressure of a hydraulic oil fed to a hydraulic rolling down device 7. Thus, the phase lag of hydraulic rolling ...

CORRECTING METHOD FOR PLATE THICKNESS DURING LOW SPEED ACCELERATION AND DECELERATION IN ROLLING BAND STEEL BY SENDZIMIR MILL

PURPOSE: To control the thickness of a band steel to a desired value with high precision when rolling the band steel by a Sendzimer mill, by adjusting a work roll gap during low-speed acceleration and deceleration by controlling an AsU roll crown regulator provided to the mill in accordance with a rolling speed. CONSTITUTION: The rolling speed of a Senzimir mill is detected by a speed detector 13, nd a detection signal is sent to a controller 14, whose output is used to drive a hydraulic motor 15 for rack operation. Namely, the rack 12 of an AsU roll crown regulator A is moved and a siding plate 9 is rotated through a gear 11. Part of a bearing shaft 10 fixed to the eccentric position of the side plate 9 is bent and a gap between the upper and lower work rolls of the Sendzimir mill is controlled adequately to control the thickness of a rolled steel plate to a desired value with high precision. COPYRIGHT: (C)1982,JPO&Japio ...

ARITHMETIC UNIT FOR MASS-FLOW SHEET THICKNESS

PURPOSE: To accurately output an outlet side sheet thickness by correcting a fixedly set advancing ratio in accordance with actually changing advancing ratio in acceleration and deceleration operations. CONSTITUTION: A sheet thickness H2x from a No.2 thickness tracking device 18 and a thickness output h2 from a No.2 thickness detector 9 detecting outlet side sheet thicknesses of a No.2 rolling stand 6 are inputted to an advancing ratio correction factor arithmetic unit 19; K=h2/H2x is calculated to find an advancing ratio correction factor K, which is outputted to a sheet thickness arithmetic unit 17, which multiplies a prescribed equation finding an outlet side sheet thickness right under a rolling roll on a basis of the mass-flow law by the above factor K to always control the fixedly set advancing ratio. Thus, the accurate sheet thickness is outputted in acceleration or deceleration operations of a line. COPYRIGHT: (C)1988,JPO&Japio ...

FLYING THICKNESS CHANGE CONTROL METHOD OF THICK PLATE

PURPOSE: To reduce the loss of yield by performing the set change of roll gap so as to come to the target values from a flying thickness changing quantity, detected value of cylinder position and measured value of thickness. CONSTITUTION: About the length of each order of slab 10, the forward slip is corrected by use of a gage meter model. Thus, an estimated length is calculated, a slab is rolled/controlled up to the measured value of rolling length made larger than the estimated length in an AGC controller 3. About the thickness of each order, the set change of roll 41 gap is performed in the AGC controller 3 so as to come to the individual target value from the set flying thickness changing quantity, the value of position detector 8 for a cylinder 7 with which the set change of roll 41 gap is performed and the measured value of thickness. In this way, the flying thickness change of thick plates in which the order of product with plural tolerances of thickness is contained can be done.

СПОСОБ РЕГУЛИРОВАНИЯ ТОЛЩИНЫ ПОЛОСЫ ПРОКАТНОЙ КЛЕТЬЮ

Способ регулирования толщины полосы прокатной клетью, заключающийся в том, что измеряют возмущение толщины полосы до клети, сопровождают результат измерения до входа в клеть, отрабатывают его в клети перемещением ее нажимных винтов с определенной скоростью в течение определенного времени, измеряют отклонение от заданного значения толщины полосы после выхода ее из клети, отличающийся тем, что воздействуют на скорость нажимных винтов как по возмущению, так и по отклонению после перемножения этих воздействий и реального дифференцирования полученного произведения.

Способ управления станом с перфорацией и порезкой гнутых профилей на ходу и устройство для его осуществления

Изобретение относится к машиностроению , в частное ги к оборудованию обработки металлов давлением, и может быть использовано при производстве гнутых профилей на профилегибочных станах с перфорацией и порезкой их на ходу. Цель ис лбретения - расширение функциональных возможностей путем изготовления гнутых профилей как готовых изделий з сборных конструкциях машин и сооуженмй, Исходную полосу перед формованием, гнутого профиля пропускают м:-рез пэ/ ковь; - перфоратор, Чтобы л;-;ния резл не сме.Д .эс;.- относительно пзрфс- р;:циснных с - ь остмй, з каждое; цикле оеза o iр цаемую , отмеряют оди.чакозым числом LusroB валкового перфоратора, а за m ШЙ;ОБ до окончания щ.,ля измеряют зс- тазшуюся чг;/гь кер -юй дпины контактными мерительными роликами, 1;мерение заканчивают в момент окок ан лреза. Измеренную длину сравнивают с длиной, соответствующей m Lj.sraM валкового перфоратора. Полученную разнсить используют для ксррокции заданной ср..ой Е. следующем цикле реза. Ус . рсйсп э для резл.-;зации ...

Способ автоматического регулирования толщины полосы

Способ регулирования толщины полосы на реверсивном стане прокатки-волочения

Устройство для автоматического регулирования толщины полосы на непрерывном стане холодной прокатки

Устройство для автоматической установки кассет с валками гибщика планшет по ширине сляба

Устройство для автоматического регулирования толщины полосы на входе стана непрерывной прокатки

Устройство для регулирования размеров проката на проволочном прокатном стане

Изобретение относится к регулирующим устройствам в прокатном производстве и может быть использовано на проволочных прокатных станах, работающих с натяжением металла в межклетевом промежутке чистовой группы клетей. Цель изобретения - повышение качества проката путем повышения точности размеров готового проката. С изменением технологических условий прокатки в очаге деформации первой клети, приводящих к изменению размеров проката, происходит изменение межклетевого натяжения по величине и знаку, направленное на стабилизацию выходных размеров проката. При этом степень изменения натяжения при изменении технологических условий прокатки благодаря блоку управления и двум управляемым пропорциональным звеньям при прокатке различных марок стали различна, что обеспечивает повышение точности размеров готового проката различных марок стали. 3 ил.

CONTROL APPARATUS OF ROLLING MILL

A control apparatus of a rolling mill includes a load top/bottom distributor distributing loads as top and bottom side loads, a load top/bottom variation identification mechanism identifying load variation components occurring in connection with a rotational position of rolls from the top and bottom side loads, and top/bottom identified load variation storage storing, for each rotational position of rolls, top and bottom side variation components of the load in a kiss-roll condition identified by the load top/bottom variation identification mechanism. A manipulated variable computer computes a roll gap instruction value based on the top and bottom side variation components of the rolling load identified by the load top/bottom variation identification mechanism, and the top side variation component and the bottom side variation component of the load in a kiss-roll condition stored in the top/bottom identified load variation storage. 1. A control apparatus of a rolling mill for reducing periodic disturbances which are caused mainly by roll eccentricity , in gauge control during rolling of a metal material , comprising:a load detecting device for detecting a load in a kiss-roll condition and a rolling load;a load top/bottom distribution device which distributes loads detected by the load detecting device as a top side load and a bottom side load at a prescribed ratio;a load top/bottom variation identification device which identifies load variation components occurring in connection with a rotational position of rolls from the top side load and the bottom side load which are distributed by the load top/bottom distribution device;a top/bottom identified load variation storage device which stores, for each rotational position of rolls, a top side variation component and a bottom side variation component of the load in a kiss-roll condition which are identified by the load top/bottom variation identification device;a manipulated variable computation device which computes a ...

High Precision Thickness Control on a Rolling Mill for Flat Rolled Metal

The high precision rolling design utilizes a high speed hydraulic roll position control along with a high accuracy roll gap measurement. The lower work roll position is fixed and the upper work roll is positioned by a hydraulic roll force cylinder using an inner and outer control loop. The inner loop is a cylinder position control that moves the upper work roll. The outer loop uses a measurement of the work roll gap to trim the inner cylinder positioning control. Both control loops coordinate together to provide a high precision and even strip thickness tolerance to +/−0.15 mils or less. Both sides of the upper work roll are controlled separately to achieve the overall tolerance goal. 1. A single stand rolling mill with a thickness control system designed to roll a flat metal product comprising:A) a pair of work rolls, wherein one work roll is designed to be separately movable on each side of said rolling mill for metal thickness control purposes,B) wherein said thickness control system is designed to position said movable work roll on both sides of said rolling mill, a) a roll force cylinder designed to position said movable work roll,', 'b) a roll gap sensor, wherein said roll gap sensor has an accuracy of +/−0.08 mils or less,', 'c) an outer roll gap position control loop, wherein said outer roll gap position control loop is connected to said roll gap sensor,', 'd) wherein said outer roll gap position control loop is additionally connected to an inner roll force cylinder position control loop,', 'e) wherein said an inner roll force cylinder position control loop is connected to a hydraulic control valve,', 'f) wherein said hydraulic control valve is connected to said roll force cylinder, and', 'g) said hydraulic control valve and associated hydraulic system is designed to move said movable work roll 0.001 inches in 50 milliseconds or less,, 'C) wherein said thickness control system comprises the following features on each side of said movable work rollD) whereby ...

METHODS AND APPARATUS TO MONITOR MATERIAL CONDITIONING MACHINES

Methods and apparatus to monitor conditioning machines are disclosed herein. An example system includes a plurality of work rolls to process a strip material. A first sensor detects a first distance between an upper surface of the strip material and a first reference location and a second sensor detects a second distance between an upper surface of the strip material and a second reference location. A controller determines a difference value between the first distance and the second distance to detect material curvature of the strip material. 1. A system comprising:a plurality of work rolls to process a strip material;a first sensor to detect a first distance between an upper surface of the strip material and a first reference location;a second sensor to detect a second distance between an upper surface of the strip material and a second reference location; anda controller to determine a difference value between the first distance and the second distance to detect material curvature in the strip material.2. The system of claim 1 , wherein the first reference location is at a first height relative to the strip material and the second reference location is at a second height relative to the strip material claim 1 , the first height being substantially equal to the second height.3. The system of claim 1 , wherein the first and second distances are measured simultaneously.4. The system of claim 1 , further comprising a plunge adjustor to adjust a plunge depth of the work rolls if the difference value deviates from a threshold value.5. The system of claim 1 , wherein the first and second sensors are mounted to a frame of the leveler adjacent an exit of the work rolls.6. The system of claim 1 , wherein the first sensor is mounted at a first distance from a central axis of a work roll adjacent the exit work rolls and the second sensor is mounted at a second distance from the central axis of the work roll adjacent the exit work rolls.7. The system of claim 1 , further ...

AUTO GAUGE SYSTEM AND METHOD FOR ROLL FORMING MACHINE

An automatically adjusting auto gauge system comprises a servo motor that provides rotational motion; at least one of a gearbox and linear actuator driven by the one or more servo motors to transfer the rotational motor of the servo motor to linear motion; a group of roll former passes, each including a cam arm, an eccentric cam, a push rod, a top set of roll tooling, a bottom set of roll tooling; a bar operably coupled to the gearbox and the cam arms of the group of roll former passes, the bar driven by the gearbox to impart linear motion to the cam arms, which in turn imparts rotational motion to each eccentric cam, which in turn imparts linear motion, raising or lowering the top set of roll tooling via the push rod, adjusting a gap between the top and bottom sets of roll tooling. 1. An auto gauge system that automatically adjusts passes for different gauges of steel , comprising:a servo motor that provides rotational motion;at least one of a gearbox and linear actuator driven by the one or more servo motors to transfer the rotational motor of the servo motor to linear motion;a roll pass assembly including a group of roll former passes, each roll former pass including a cam arm, an eccentric cam, a push rod, a top set of roll tooling, a bottom set of roll tooling;a bar operably coupled to the gearbox and the cam arms of the group of roll former passes, the bar driven by the gearbox/linear actuator to impart linear motion to the cam arms, which in turn imparts rotational motion to each eccentric cam, which in turn imparts linear motion, raising or lowering the top set of roll tooling via the push rod, adjusting a gap between the top and bottom sets of roll tooling larger or smaller, adjusting passes for different gauges of steel.2. The auto gauge system of claim 1 , further including a matching roll pass assembly adjacent to the roll pass assembly and a cam connection shaft operably coupling respective eccentric cams of the roll pass assembly and the matching roll ...

Roll Dimpler Apparatus and Method for Preparing Metal Blanks

A device and method of preparing metal blanks including applying a series of dimples in metal feed stock. 1. A roll dimpler comprising:A frame to support at least one set of opposed wheel mechanisms, where each mechanism comprises a male dimpling wheel and an opposed female dimpling wheel; andA compliant variable pressure device to apply a selected steady pressure between the male dimpling wheel and the opposed female dimpling wheel; andA lube-free gib set guiding the compliant variable pressure device and holding the dimple wheel square to the sheet metal.2. A method of preparing metal blanks comprising:Separating opposed dimpling roller wheels to accommodate metal coil stock;Feeding straightened metal coil stock into the separated dimpling wheels;Closing the opposed dimpling roller wheels onto the straightened metal coil feed stock;Stamping test blanks;Measuring dimple height;Adjusting a compliant pressure device and male dimple height to achieve desired dimple height in the metal coil stock; andContinuously feeding metal coil stock through the dimpling roller wheels, where the metal coil stock friction rotates the dimpling wheels dimpling the stock.3. A method for preparing a sheet of metal for processing into a stack of metal blanks , the method comprising:adjusting one or more dimpler heads to position sufficient to accommodate expected material thickness of the sheet of metal, where a first of the set of produce a line of dimples in the desired location on the straightened metal sheet; andpassing the sheet of metal between the at least one dimpler head, where friction between the male dimpling wheel, the sheet of metal and the female dimpling wheel induces rotation and formation of a repeating dimple pattern in the sheet of metal.4. The method as set forth in claim 3 , further comprising decoiling a roll of metal into a sheet of metal prior to the dimpling process and utilizing the force created by the decoiler to turn the dimpling wheels.5. The method as set ...

PLATE THICKNESS CONTROL DEVICE AND PLATE THICKNESS CONTROL METHOD

A plate thickness control device controlling plate thickness of a hot rolling mill that includes a rolling stand. The plate thickness control device includes: a pyrometer disposed on an entry side of the rolling stand; a difference calculation part that outputs a difference temperature between a lock-on temperature of the plate-to-be-rolled measured by the pyrometer and a measurement value of a portion other than a tip portion of the plate-to-be-rolled measured by the pyrometer; a tracking part that transfers the difference temperature from the position of the pyrometer to immediately below the rolling stand based on plate speed of the plate-to-be-rolled; and a computation part that calculates a screw-down amount of the rolling stand based on the difference temperature transmitted from the tracking part. 1. A plate thickness control device for controlling the plate thickness in a hot rolling mill with a rolling stand , the plate thickness control device comprising:a pyrometer disposed on an entry side of the rolling stand;a difference calculation part configured to output a difference temperature between a lock-on temperature of a plate-to-be-rolled measured by the pyrometer and a measurement value other than a head end portion of the plate-to-be-rolled measured by the pyrometer;a tracking part configured to transfer the difference temperature from a first position of the pyrometer to a second position immediately below the rolling stand based on a plate speed of the plate-to-be-rolled; anda computation part configured to calculate a screw-down amount of the rolling stand based on the difference temperature transmitted from the tracking part, wherein a control part configured to perform, at least, differential control on the difference temperature, and', 'a screw-down amount calculation part configured to calculate the screw-down amount based on an output value of the control part., 'the computation part includes'}2. The plate thickness control device according to ...

METHODS AND APPARATUS TO DETERMINE A PLUNGE DEPTH POSITION OF MATERIAL CONDITIONING MACHINES

Methods and apparatus to determine a plunge depth position of material conditioning machines are disclosed. An example method for setting a plunge depth of a leveler includes incrementally adjusting, via an actuator, a first work roll relative to a second work roll between a plurality of incremental plunge depth positions; measuring a pressure value in the actuator at the respective incremental plunge depth positions; associating the measured pressure values with the corresponding incremental plunge depth positions; detecting a smallest one of the measured pressure values; and identifying a first one of the incremental plunge depth positions corresponding to the smallest one of the measured pressure values. 1. A method for setting a plunge depth of a leveler comprising:incrementally adjusting, via an actuator, a first work roll relative to a second work roll between a plurality of incremental plunge depth positions;measuring a pressure value in the actuator at the respective incremental plunge depth positions;associating the measured pressure values with the corresponding incremental plunge depth positions;detecting a smallest one of the measured pressure values; andidentifying a first one of the incremental plunge depth positions corresponding to the smallest one of the measured pressure values.2. The method of claim 1 , further comprising processing a strip material at the identified first one of the incremental plunge depth positions.3. The method of claim 2 , further comprising receiving material characteristics of the strip material prior to incrementally adjusting the first and second work rolls between the incremental plunge depth positions.4. The method of claim 3 , wherein receiving material characteristics comprises receiving a width value and a thickness value of the strip material.5. The method of claim 1 , wherein incrementally adjusting the first and second work rolls comprises incrementally adjusting a plunge depth between the first and second work ...

Method and apparatus for automatic mill zero correction for strip width

The change in the mill modulus of the stand of a rolling mill due to the particular strip width of a run strip of material is taken into account by reference to the unloaded mill modulus of the stand and a desired roll gap opening is calculated on the basis of an error relative to the actual roll gap opening in order to achieve a desired strip thickness setting.

System for automatic adjusting of stand eqvivalent rigidity

Rolling process control method

FIELD: regulation of hot and/or cold rolling processes. SUBSTANCE: method involves setting rolling program for rolling process control system, with program involving data on initial and final sizes, material characteristics, rolling temperatures etc. Control system has units for controlling predetermined values of subordinate, preferably free, individual devices for regulating variable functional parameters of separate stands of rolling mill, for instance, rolling force, rotational speed, roll position etc. Method further involves conducting calculations by model equation on the basis of prepared and statistically processed, process variable measured values; adapting parameters to actual parameters and determining predetermined values of regulators. In case changes in rolling process requirements occur, particularly, when manual mode is changed for automatic mode, or when final thickness and/or temperature are varied, adaptation of parameters is effectuated, with set values used prior to changes in requirements, being employed as basis for adaptation. EFFECT: increased efficiency and improved quality of rolled products. 3 cl, 2 dwg 96938 140с ПЧ ГЭ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2 078 626 ' (51) МПК 13) Сл В 21В 37/00 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 93053893/02, 14.02.1992 (30) Приоритет: 20.02.1991 ОЕ Р 4105321.4 (46) Дата публикации: 10.05.1997 (56) Ссылки: НМ. Зеутед. АррИсаНоп о{ аЧарНуе сомго|! ш гоШпта т! агеа, езресайЙу ог рае тИ5$. Ргоссе4та$ о? {пе РАС 6ТН \МОКЕО сопдгез$. ЦЗА, 1975. (86) Заявка РСТ: ОЕ 92/00104 (14.02.92) (71) Заявитель: Сименс АГ (0Е) (72) Изобретатель: Гюнтер Зергель [ОЕ] (73) Патентообладатель: Сименс АГ (ОЕ) (54) СПОСОБ РЕГУЛИРОВАНИЯ ПРОЦЕССА ПРОКАТКИ (57) Реферат: Изобретение относится к прокатному производству и предназначено для регулирования процесса горячей и/или холодной прокатки. Сущность изобретения заключается в том, что регулирование процесса горячей и/ ...

Auto-tuning method of sheet thickness control

본 발명은 냉간압연에서 냉연판 두께를 제어하는 방법에 관한 것으로서, 냉간압연에서 첫번째 스탠드 후단의 두께계(2)를 이용하여 일정시간에 두께를 샘플링(Sαmpling)한 후 그 편차량과 로드셀(1)의 압연하중을 이용 연사기(11)로 를 구하고, α * = α + α 를 이용하여 구한 새로운 α * 로 (여기서, P: 압연하중, α: 제어파라미터 변동량, hx: X -rαy 두께계에서 감지한 실제두께 편차량, M: 밀정수) 비스라자동두께제어기(BISRA AGC)(7)의 제어 파라미터 고정값 α를 대신하여 온라인으로 자동튜닝함으로써 제어옵셋량을 줄여 피드백자동두께제어기(Feedback AGC)(8)의 수렴속도로 빠르게 하여 두께 편차량을 빨리 없애는 자동튜닝방법으로, 냉간압연에서 제어파라미터를 온라인상에서 최적적인 값으로 자동튜닝으로 인해 목표두께로 수렴하는데 종래보다 더 빠르게 됨으로써 특히 용접부와 같이 압연 조건의 급변구간에서 두께 정도 및 실수율 향상으로 생산성이 크게 향상되고 고품질의 냉연판을 얻을 수 있는 장점이 있고, 후공정에서의 생산성 및 작업성을 동시에 향상시킬 수 있으며, 이와 같은 두께계를 이용한 자동튜닝 기술은 열간압연과 같은 압연공정에서 유사하게 응용할 수 있는 장점이 있는 판두께 제어장치의 자동튜닝방법이다. The present invention relates to a method for controlling the thickness of a cold rolled sheet in cold rolling, and after sampling the thickness at a predetermined time using a thickness meter (2) at the rear end of the first stand in cold rolling, the deviation amount and the load cell (1). To the weaving machine (11) , And α * = α + With new α * obtained using α (where P: rolling load, α: control parameter variation, hx: Actual thickness deviation detected by the X- rαy thickness meter, M: Integer constant) The control offset amount is automatically tuned online instead of the control parameter fixed value α of the BISRA AGC (7). It is an automatic tuning method that quickly eliminates the thickness variation by speeding up the convergence speed of feedback AGC (8) .In cold rolling, the control parameter converges to the target thickness by automatic tuning to the optimum value online. Since it is faster than the conventional method, the productivity is greatly improved and a high quality cold rolled plate can be obtained by improving the thickness degree and the error rate, especially in the sudden change section of the rolling condition such as a welded part, and at the same time, the productivity and workability in the post-process The automatic tuning technology using the thickness gauge can have similar advantages in rolling ...

热轧带钢的厚度控制方法及应用

本申请涉及一种热轧带钢的厚度控制方法及应用，该控制方法包括：包括以下步骤：获取N个轧机中各轧机最大压下速率，且各所述轧机的秒流量相等；在第N个轧机在第一运行时长内的最大厚度调节量大于对应的厚度偏差调节任务时，所述第N个轧机根据相应扫描周期、自身的积分控制系数以及对应带钢的当前厚度偏差参考计算值获得的辊缝调节量进行调节；且第N个轧机之前的轧机被配置为保持钢带厚度不变的第一状态；动态调整所述N个轧机的压下速率，平衡各轧机的负荷。上述热轧带钢的厚度控制方法，调节过程带钢厚度不容易出现震荡和超调现象，带钢版型好，厚度均一，从而保证带钢的质量。

ロ−ル偏芯状態の計測方法

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

ロ−ル偏心制御の位相遅れ補正方法

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Apparatus for measuring concentricity of wire-rod rolling roll

PURPOSE: A concentricity measuring apparatus for a wire-rod rolling roll is provided to simply and precisely measure an external diameter and the concentricity of a roll. CONSTITUTION: A concentricity measuring apparatus(1) for a wire-rod rolling roll comprises: a roll support unit which is included in an equipment base(10) and wherein a wire-rod rolling roll is rotatably set; a roll pressing and conveying unit(50) which moves forward and backward in the equipment base in order to be ascended and descended and wherein the wire-rod rolling roll is settled; and a rolling roll measurement unit(70) which is associated with the equipment base and measures the concentricity of the wire-rod rolling roll.

Rolling mill gage control actuator system

一种厚规格窄带钢厚度控制方法

本发明提出一种厚规格窄带钢厚度控制方法，属于轧制自动控制技术领域，包括：采集PDI数据；计算轧件运行速度；计算轧件通过轧线特定位置的时间及对应的采样点数目；根据采样点数目确定轧件厚度的计算方式；计算轧件扭转造成的测量偏差；使用测量偏差补偿测厚仪的实测数据，得到补偿后的测厚仪的实测数据；使用补偿后的厚度测量值进行厚度控制，完成轧制过程。本发明在现有系统基础上，仅通过对数据分析和处理，即可以实现厚规格窄带钢的厚度测量，无须对现有控制系统进行修改，能够保证厚度的测量精度，安全可靠，为厚度自动控制系统的正常投用提供了良好的基础。

Apparatus for determining band rigidity at continuous hot rolling process

УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯЖЕСТКОСТИ ПОЛОСЫ В ПРОЦЕССЕ НЕПРЕРЫВНОЙ ГОРЯЧЕЙ ПРОКАТКИ, включающее два аналогичных кднала измерени , причем каждый канал содержит датчики усили  прокатки и раствора рабочих валков, первый и второй элементы сравнени , первые входы которых соединены с выходами соответствующих датчиков, а вторые входы соединены с выходами задатчиков усили  прокатки и раствора валков, первый и второй усилители, входы которых соединены соответственно с выходами первого и второго элементов сравнени , блок делени , первый вход которого соединен с выходом второго усилител , блок умножени , , первый вход которого соединен с выходом блока делени , третий элемент сравнени , первый вход которого соединен с выходом первого усилител , а второй вход соединен с выходом блока умножени , первый вычислительный блок, первый вход которого соединен с выходом третьего элемента сравнени , второй вход соединен с. выходом второго усилител , а выход соединен со вторым входом блока умножени , второй вычислительный блок, первый вход которого соединен с выходом первого вычислительного блока, выход соединен со. вторым входом блока делени , а также датчик наличи  металла, выход которого соединен с третьим входом первого вычислительного блока, и датчик ширины полосы, выход которого соединен со вторым входом второго вычислительного блока, отличающеес  тем, что, с целью увеличени  точности определени  жесткости полосы отдельно с левой и правой сторон прокатной клети-, (Л оно дополнительно снабжено блоком делени  дл  каждого канала, а трес тьи элементы сравнени  дополнительно снабжены третьим, четвертым и п тым входс1ми, причем первые входы дополнительных блоков делени  соединены с выходами первых усилителей , вторые входы дополнительных блоков делени  соединены с датчиком ширины полосы, выход дополнительного блока делени  первого канаю ла соединен с третьим входом третье00 го элемента сравнени  второго канала , выход дополнительного блока оо о делени  второго канала соединен с четвертым ...

Device for automatic thickness-control in rolling mill

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method and device for control of plate thickness

Method for early warning thickness deviation of strip steel on line

本发明公开了一种在线预警带钢厚度偏差的方法，利用测厚仪采集出侧测量带钢厚度和入侧测量带钢厚度的数据，计算出出侧带钢厚度预测值，即出侧带钢厚度预测值h 预 与出侧测量带钢厚度h 出 进行对比，当偏差Δδ＝h 预 ‑h 出 超出钢带厚度公差范围时，对出侧测量带钢厚度h 出 进行报警。本发明实现在线及时预测实际厚度、事前预警，简单易行、反馈及时，不仅解决了人工测量误差大和滞后的问题，也杜绝了连续批量钢带厚度公差超标降废的损失，实施效果显著。

Apparatus for determining metal presence between rolling stand rolls

Prediction of rolling load by calibrating plasticity factor of rolled material

본 발명은 압연실적 데이터를 이용하여 소성계수를 최적으로 보정하는 계수를 구하고 이를 이용하여 예측압연하중과 소성계수를 보정함으로써, 롤갭설정을 고도화하고 두께제어 응답성을 높일 수 있는 압연재 소성계수 보정에 의한 예측압연하중 보정방법에 관한 것이다. 이러한 본 발명에 따른 압연재 소성계수 보정에 의한 예측압연하중 보정방법은, 소성계수의 보정계수와 코일번호와 두께변동량 예측이 양호한 코일수를 초기화하는 제 1 단계와; 상기 코일번호에 해당하는 코일 압연실적데이터(압연하중, 롤갭, 두께)를 읽고 각 스탠드별 소성계수에 상기 소성계수의 보정계수를 곱하여 상기 각 스탠드별 소성계수를 보정하는 제 2 단계와; 상기 각 스탠드별 두께오차 발생인자(입측소재 두께 변동, 운전자 롤갭 조정, 압연기 설정오차)에 의한 각 스탠드별 압연하중 변동량과 각 스탠드별 출측 두께 변동량과 최종 스탠드의 두께 변동량을 계산하는 제 3 단계와; 상기 제 3 단계에서 구한 각 두께오차 발생인자에 의한 최종 스탠드의 두께 변동량의 합을 계산하는 제 4 단계와; 상기 계산된 최종 스탠드의 두께 변동량의 합과 실측된 최종 스탠드의 두께 변동량과의 오차가 임계치보다 작으면 상기 두께변동량 예측이 양호한 코일수를 1 증가시키는 제 5 단계와; 모든 코일에 대해 상기 제 2 단계 내지 제 5 단계를 반복 수행하는 제 6 단계와; 상기 제 6 단계 수행 후 소성계수의 보정계수와 상기 두께변동량 예측이 양호한 코일수를 저장하는 제 7 단계와; 상기 소성계수의 보정계수가 0이 될 때까지 상기 소성계수의 보정계수에서 일정 상수를 감산하면서 상기 제 2 단계 내지 제 7 단계를 반복 수행하는 제 8 단계와; 상기 제 8 단계 수행 후 최적의 소성계수의 보정계수를 선정하고, 상기 소성계수의 보정계수를 이용하여 예측압연하중과 소성계수를 보정하는 제 9 단계를 포함한다. 압연기, 소성계수, 판두께, 압연하중, 롤갭

Method of controlling multistand rolling mill

Plate thickness controlling method in case of rolling steel plate

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Rolling mill

Rolling mill plate type controlling method for thick high-level marine steel

一种针对厚规格高级别海工钢的轧机板型控制方法，属于宽厚板轧制技术领域。该方法主要为控制钢板轧制、水冷、矫直等步骤中的工艺参数。优点在于：该方法通过调节部分参数，设定合理堆冷时间，大大提高了板型合格率，生产方法简单，板形良好，可适用于大批量生产。

Control device of sheet thickness

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method for improving thickness precision of rolling target of medium plate

本发明公开了一种提高中厚板轧制目标厚度精度的方法，该方法具体包括如下步骤：S1、计算轧件在倒数第3道次出口处的厚度测量平均值与厚度设定值的差值T 3E ；S2、基于差值T 3E 对末道次的辊缝设定值进行修正。通过设置在轧机后的测厚仪，在倒数第三道次的出口，测量轧件的实际热态厚度，从而计算出常温下的轧件平均厚度，厚度反馈模型计算该平均厚度与倒数第三道次设定的轧件出口厚度偏差，作为辊缝附加调整量作用在终轧道次的辊缝设定上，可缩小钢板终轧厚度与设定目标厚度的偏差，克服常规的末道次厚度反馈方法不能修正当前钢板终轧厚度的缺陷。

Compensating method for roll eccentricity of rolling mill

Apparatus for compensating back-up roll eccentricity

Automatic gearshift device

Использование: в системах управлени  коробками передач транспортных средств. Сущность изобретени : выбираетс  желаема  передача, а переключение с текущей передачи на выбранную осуществл етс  при достижении значени  скорости автомобил , соответствующего выбранной передаче . За вленное устройство может быть использовано дл  изменени  скорости автомобил , который на большой скорости выходит на крутой подъем. 3 з.п. ф-лы, 7 ил.

Apparatus for filtering eccentricity of rolls in automatic regulation of strip thickness

УСТРОЙСТВО ДЛЯ ФИЛЬТРАЦИИ ЭКСЦЕНТРИСИТЕТА ВАЛКОВ ПРИ АВТОМАТИЧЕСКОМ РЕГУЛИРОВАНИИ ТОЛЩИНЫ ПОЛОСЫ , содержащее датчик усили , первый , второй и третий сумматоры, первый и второй интеграторы, первый и второй блоки выделени  модул , блок дифференцировани , источник опорного напр жени , ключ, компаратор .и элемент задержки, отличающеес  тем, что, с целью повьаоени  качества полосы за счет увеличени  точности регулировани  толщины полосы, оно дополнительно содержат Нервый и второй блоки умножени  и датчик скорости прокатки в клети, причем выход датчика усили  соединен с первым входом первого Iсумматора, выход которого соединен с первым входом первого блока умножени , выход которого соединен с первым входом первого интегратора, выход которого соединен с вторым входом первого сумматора и  вл етс  выходом устройства, выход перво-го сумматора соединен также с первым входом блока дифференцировани  и входом первого блока выделени  модул , выход блока дифференцировани  через ключ и второй блок выделени  модул  соединен с первым входом второго сумматора, выход второго сумматора соединен с первым входом второго блока умножени , выход коi торого соединен с входом второго интегратора , выход которого соединен, с первым входом третьего и со вторым входом второго сумматоров, третий вход второго и второй вход третьего сумматоров соединен с источником опорного напр жени , выход третьего сумматора через компаратор соединен с вторым входом первого интегратора, О а СО 4i выход компаратора соединен через эле мент задержки .с BTOptiM входом ключа, выход первого блока выделени  модул  соедииен с втйрым входом компаратора ,датчик скорости прокатки полосы в клети соединен с вторыми входами :р первого и второго блоков умножени  9) к блока дифференцировани . A DEVICE FOR FILTRATING THE EXCENTRISITY OF ROLLS DURING AUTOMATIC REGULATION OF THE STRIP THICKNESS, containing a force sensor, first, second and third adders, first and second integrators, first and second module allocation units, ...

Rolling mill control system

This rolling mill for compensating the mill molds and the offset value of the roll gap, has a number of measuring means for data, including material size, roll gap, and reaction force associated with the rolls. An arithmetic processing unit, e.g. a computer, receives the data during a number of successive sampling periods to execute predetermined processing, separately calculating the most reliable values of a mill molds and offset of the roll gap to use such value as input data for controlling the rolls. The processing is provided for each pair of rolls. Pass setting controls improve rolling accuracy by calculating data during actual rolling to feed back data to a control system.

Method and device for production of flat rolled metal products

FIELD: technological processes. SUBSTANCE: invention relates to a method of making flat metal products, in particular rolls from a strip, in endless or semi-infinite mode, in which metal product is continuously supplied to rolling mill, which contains, in general, at least 4 stands, in which rolling mill stands are successively rough draft stands and finishing stands. Provided is variation of thickness on the move. At least rollers speed of the first stand of rolling mill and their gap are not changed during thickness change on the move. Transition from current thickness to subsequent thickness is performed by application of new adjustment of parameters, for example gap between rolls, speed of rolls and interstand tension, to all rolling stands involved in change of thickness on the move. Number of stands involved in change of thickness on the move, starting from the last stand of finishing stands, is obtained taking into account distribution of rolling force of each stand, so that new distribution of forces caused by thickness variation does not lead to any output of the rolling force of any stand from acceptable tolerance range. EFFECT: higher reliability, stability of process, simplified control of stands, reduced wear and improved quality of finished strip. 10 cl, 11 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 735 643 C1 (51) МПК B21B 37/18 (2006.01) B21B 37/24 (2006.01) B21B 1/46 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B21B 37/18 (2020.02); B21B 37/24 (2020.02); B21B 1/46 (2020.02) (21)(22) Заявка: 2020100239, 10.01.2020 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ДАНИЕЛИ ЭНД К. ОФФИЧИНЕ МЕККАНИКЕ С.П.А. (IT) Дата регистрации: 05.11.2020 (56) Список документов, цитированных в отчете о поиске: RU 2172652 C2, 27.08.2001. RU 2264872 C2, 27.11.2005. DE 19520832 A1, 25.04.1996. (45) Опубликовано: 05.11.2020 Бюл. № 31 2 7 3 5 6 4 3 R U (54) СПОСОБ И УСТРОЙСТВО ДЛЯ ...

Metal strip rolling method

FIELD: rolling of metal strip in roughing rolling mill and finishing rolling mill. SUBSTANCE: method involves regulating process parameters in roughing rolling mill depending on predicted value for changing width of metal strip in finishing rolling mill; modeling dependence of changes in metal strip width on parameters of rolling process in neuronic circuit; adaptively changing circuit parameters upon each pass of metal strip through finishing rolling mill depending on values measured or calculated during passage of metal strip and actual changes in width. Direct communication circuit with hidden layer of sigmoid responsive members may be used as neuronic circuit. Adaptive linear neuron may used in neuronic circuit. EFFECT: increased efficiency by improved quality of prediction due to employment of neuronic circuit. 8 cl, 3 dwg ЕСЭ9Этс Тс ПЧ ГЭ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2134 621‘ (51) МПК 13) СЛ В 21В 1/22, 37/22, © 05 В 13/02, © 11 С 11/54 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 97101897102, 21.06.1995 (30) Приоритет: 07.07.1994 ЕР 94110599.1 (46) Дата публикации: 20.08.1999 (56) Ссылки: ЗЦ 1722636 А, 30.03.92. $Ц 1771839 А, 30.10.92. \!О 9300181 А, 07.01.93. ОЕ 4301130 А, 22.07.93. ЕР 0460892 А, 11.12.91. УР 05-038511 А, 19.02.93. 4Р 05-185124 А, 27.07.93. (85) Дата перевода заявки РСТ на национальную фазу: 07.02.97 (86) Заявка РСТ: ЕР 95/02503 (27.06.95) (87) Публикация РСТ: \М/О 96/01705 (25.01.96) (98) Адрес для переписки: 129010, Москва, ул.Б.Спасская 25, стр.3, Союзпатент, начальнику отдела электроники и физики Емельянову Е.И. (71) Заявитель: Сименс АГ (0Е) (72) Изобретатель: Томас Мартинетц (0Е), Томас Поппе (0Е), Гюнтер Зергель (0Е), Отто Грамков (ОЕ) (73) Патентообладатель: Сименс АГ (0Е) (54) СПОСОБ ПРОКАТКИ МЕТАЛЛИЧЕСКОЙ ЛЕНТЫ (57) Реферат: Изобретение используется при прокатке металлической ленты в черновом прокатном стане и чистовом прокатном стане. Технический результат: ...

Apparatus for compensating roll eccentricity at automatic control of strip thickness

1. УСТРОЙСТВО ДЛЯ КОМПЕНСАЦИИ ЭКСЦЕНТРИСИТЕТА ВАЛКОВ ПРИ АВТС 1АТИЧЕСКОМ РЕГУЛИРОВАНИИ ТОЛЩИНЫ ПОЛОСЫ, содержгиаее следшцую систему , включающую последовательно соединенные сумматор и интегратор, охваченные отрицательной обратной св зью, компаратор, первый вход которого соединен с выходом сумматора, а выход - с управл ющим входом интегратора , и блок модул , о т л ичающеес  тем, что, с целью повышени  точности работы и упрощени  конструкции устройства, оно дополнительно содержит перестраиваемые по частоте фильтры высокой и .низкой частот, причем вход фильтра высокой частоты также соединен с выходом сумматора, а выход - с входом блока, модул , выход блока модул  соединен с входом фильтра низкой частоты, выход которого соединен с входом компаратора, а управл ющие входы фильтров высокой и низкой частот соединены с датчиком скорости прокатки, введенным в устройство . 2. Устройство по п. 1, отличающеес  тем, что перестраиваемые по частоте фильтры высокой и низкой частот состо т кгикдый кз последовательно соединенных соответственно второго и третьего сумматора и второго и третьего интеграторов, охваченных отрицательными обратными с св з ми, и широтно-импульсного модул тора , причем-входы широтно-импульс-Я ных модул торов  вл ютс  управл ющими входами фильтров, а выходы соединены с управл ющими входами второго и третьего интеграторов, входами фильтров  вл ютс  входы второго и третьего сумматоров, выходом фильтра высокой частоты  вл етс  выход второго сумматора, а выходом фильтра низкой частоты  вл етс  выход третьего интегратора. S1 ТГ 1. A DEVICE FOR COMPENSATION OF THE EXCENTRISITATION OF ROLLS AT AVTS 1ATHIC REGULATION OF A STRIP THICKNESS, containing the next system including a series-connected adder and an integrator, covered by negative feedback, a comparator, the first input of which is connected to the output of the adder, and a fuse, connected to the output, and its output, which is connected to the output of the accumulator, and its output, which is connected to ...

Operating method for a multi-stand rolling mill train with strip thickness determination on the basis of the continuity equation

将带材(6)以已知的入口厚度(d1-d4)输送给多机架的轧机列的机架(1-5)之一(2-5)即所研究的机架并且该带材(6)以一种带材厚度(d2-d5)从所研究的机架(2-5)中移出来。检测测量参量(vR、vW)，所述测量参量(vR、vW)关于所研究的机架(2-5)表征带材(6)的入口侧的速度(v1-v4)和带材(6)的出口侧的速度(v2-v5)。根据所检测的测量参量(vR、vW)，关于所研究的机架(2-5)来求得所述带材(6)的入口侧的速度(v1-v4)和所述带材(6)的出口侧的速度(v2-v5)。关于所研究的机架(2-5)根据所述入口厚度(d1-d4)、所述带材(6)的入口侧的速度(v1-v4)以及所述带材(6)的出口侧的速度(v2-v5)来求得所述带材厚度(d2-d5)。在考虑所求得的带材厚度(d2-d5)的情况下来采取其它措施。用于所述带材(6)的入口侧的速度(v1-v4)的测量参量(vW)是直接布置在所研究的机架(2-5)前面的机架(1-4)的辊子圆周速度(vW)。作为替代方案或者补充方案，用于所述带材(6)的出口侧的速度(v2-v5)的测量参量(vW)是所研究的机架(2-5)的辊子圆周速度(vW)。对带材(6)在相应的机架(2-5)中的前滑进行建模。根据相应的辊子圆周速度(vR)和所述带材(6)在相应的机架(1-5)中的前滑来求得所述带材(6)的相应的速度(v1-v5)。

A method for controlling the roll eccentricity by using bandpass filter

본 발명은 밴드패스 필터를 이용한 롤 편심 제어방법에 관한 것으로서 보다 상세하게는, 궤환제어가 적용되는 압연공정에서 필터를 이용하여 압연 롤 편심으로 인한 주기성을 가지는 외란을 제거함으로써 주기적인 두께 변동을 제거하는 밴드패스 필터를 이용한 롤 편심 제어방법에 관한 것이다. The present invention relates to a roll eccentric control method using a bandpass filter, and more particularly, by removing the disturbance having periodicity due to the rolling roll eccentricity by using the filter in the rolling process to which the feedback control is applied to remove the periodic thickness variation It relates to a roll eccentric control method using a band pass filter. 이를 위하여 본 발명은 롤 편심에 의한 편심 주파수에 대응하는 압연소재의 주기적인 출측 두께 변동이 발생하는 압연공정에서의 밴드패스 필터를 이용한 롤 편심 제어방법에 있어서, 전달함수 특성이 (여기서, ω는 편심 주파수, 상기 Q는 소재의 소성변형계수 임)인 필터를 이용하여 상기 편심 주파수를 제거하여 상기 출측 두께 변동의 외란을 제거하는 것을 특징으로 한다. To this end, the present invention is a roll eccentric control method using a band pass filter in the rolling process in which the rolling exit thickness variation of the rolled material corresponding to the eccentric frequency due to the roll eccentricity, the transfer function characteristics (Where ω is an eccentric frequency and Q is a plastic strain coefficient of the material) by using the filter to remove the eccentric frequency, characterized in that to remove the disturbance of the exit thickness fluctuation. 밴드패스 필터, 궤환제어, 편심, 전달함수, 편심 주파수, 소성변형계수 Band pass filter, feedback control, eccentricity, transfer function, eccentric frequency, plastic strain

Apparatus for automatic controlling of rolled stock thickness

УСТРОЙСТВО ЛЛЯ АВТОМАТИЧЕСКОГО УПРАВЛЕНИЯ ТОЛЩИНОЙ ПРОКАТА, содержащее датчик толщины подката, датчик толвдины проката датчик положени  нахсимного устройства, блок определени  отношени  жесткости полосы к жёсткости клети, блок определени  регулирующего перемещени  валков и блок управлени  нажимным устройством , причем первый вход блока определени  отношени  жесткости полосы к жесткости клети соединен с выходом датчика толщины подката, второй его вход соединен с выходом датчика толщины проката, а третий вход - с выходом датчика положени  нажимного устройства, второй вход блока определени  регулирующего перемещени  валков соединен с выходом датчика толщины подката, третий его вход соединен с выходом датчика толщины проката , а четвертый вход - с выходом датчика положени  нажимного устройства , выход блока определени  регулирующего перемещени  валков подсоединен к входу блока управлени  нажимным устройством, отличающеес  тем, что, с целью повыиени  точности регулировани  толщины проката, оно дополнительно содержит блок вычислени  текущего среднего значени  отношени  жесткости полосы к жесткости клети, вход которого сое динен с выходом блока определени  отношени  жесткости полосы к жесткости клети, а выход блока вычислени  . текущего среднего значени  отношени  жесткости полосы к жесткости клети подсоединен к первому входу блока определений регулирующего перемещени  валков. эо 00 00 00 00 AUTOMATIC CONTROL OF THE ROLLER THICKNESS EQUIPMENT, containing a rolling gauge, a rolled tolvdi sensor, a position sensor of the axle device, a strip stiffness to stiffness ratio determination unit, a roll stiffness ratio detecting unit, a pressure control unit, and the first input of the stiffness ratio determining rigidity control unit, and the first input of the stiffness ratio determination unit the stand is connected to the output of the gauge of the thickness of the rolled, its second input is connected to the output of the gauge of the thickness of the rental, and the third ...

A kind of cold rolling Up and down speeding tabularium thickness compensation control method

本发明提供一种冷轧轧制升降速过程中板带厚度补偿控制方法，包括：轧前准备工作，保持稳定的轧制工艺；选取不同板带，在AGC厚度控制下板带出口厚度稳定后，在后续道次中升降速轧制板带，实时记录相关轧制数据进行轧制速度‑轧制力关系的测试；实时计算轧制力补偿量，依据弹跳方程计算出轧机的辊缝补偿量，将辊缝调节量发送到AGC厚度控制系统；若轧机出口测厚仪测得的板带厚度偏差超出预定的偏差范围，则对轧制力补偿量进行二次补偿，否则按照当前辊缝调节量进行AGC厚度控制。本发明采用易于操作的方式控制传动系统并记录实际输出速度、轧制力、厚度偏差数据，获得轧机速度‑轧制力补偿系数曲线，提高升降速轧制过程中厚度控制精度并提高轧制过程稳定性。

Rolling mill

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Controlling device of sheet thickness

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Apparatus for automatic control of predetermined cross section strip thickness

1.УСТРОЙСТВО ДЛЯ АВТОМАТИЧЕСКОГО . РЕГУЛИРОВАНИЯ ТОЛЩИНЫ ПОЛОСЫ ЗАДАННОГО ПРОФИЛЯ, содержащее датчик толщины полосы, датчики входной и выходной скорости полосы, измеритель входной толщины, делитель измерител  обжати , регул тор обжати , задатчик номинальной выходной толщины , переключатель, систему перестановки валков и вычирлительный блок, содержащий блок вычитани  и делитель, причем первый и второй входы измерител  входной толщины соединены соответственно с выходом датчика толщины и выходом датчика входной скорости, первый вход дели- . тел  соединен с выходом датчика выходной скорости полосы, первый выход задатчика номинальной выходной толщины соединен с первым входом переключател , а выход регул тора обжати  соединен с входом системы перестановки валков, отличающеес  тем, что, с целью повышени  качества прокатываемых полос, а также обеспечени  возможности прокатки полос заданной длины с монотонноизмен ющейс  заданной толщиной и увеличени  выхода годного металла, оно дополнительно содержит измеритель длины выход щей из клети полосы, задатчик длины выход щей из клети полосы, ключ, компаратор, триггер. масштабный преобразователь и измеритель скорости перестановки валков, причем выход датчика выходной скорости соединен с входами измерител  длины выход щей из клети полосы и первым входом ключа, выход .измерител  выходной длины через ключ соединен с первым входом компаратора, второй вход-которого соединен с выходом задатчика длины выход щей из клети полосы, выход задатчика длины выход щей из клети полосы соединен также с первым входом вычислительного блока, второй вход вычислительного блокасоединен с датчиком выходной скорости, выход компа.ратора соединен с вторым входом ключа.и через триггер с третьим входом переключател , первый и второй входы ко (О торого -соединены соответственно с i -первым и вторым выходом задатчика номинальной выходной толщины, первый и второй выходы переключател  соединены с третьим и четвертьм входами вычислительного блока, выход ...

Method and apparatus for rolling metal band

분괴 트레인(1) 및 피니싱 트레인(2)에서 금속 밴드(5)를 로울링할 때, 금속 밴드가 피니싱 트레인으로부터 나올 때 미리 정해진 목표 밴드 폭을 갖도록, 피니싱 트레인(2)에서의 금속 밴드(5)의 폭변화에 대한 예측값(y pre )에 의존하여 분괴 트레인(2)에서 로울링 공정을 조정하는 것은 공지되어 있다. When rolling the metal band 5 in the destructive train 1 and the finishing train 2, the metal band 5 in the finishing train 2 such that the metal band has a predetermined target band width when exiting the finishing train. It is known to adjust the rolling process in the disintegration train 2 in dependence on the predicted value y pre for the change in width). 공정에 작용하는 영향 변수와 폭변화 사이의 관계를 정확히 알지 못함에도 불구하고, 폭변화를 정확하게 예측하기 위해서, 상기 관계가 신경 회로망(13)내에 시뮬레이트되고, 회로망의 회로망 파라미터는 각 금속 밴드(5)가 피니싱 트레인(2)을 통과한 후에, 통과하는 동안 측정 또는 계산된 영향 변수(x nach )와 측정된 실제 폭변화(y ist )에 의존하여 최적으로 수정된다. Despite not knowing exactly the relationship between the influence variable acting on the process and the width change, in order to accurately predict the width change, the relationship is simulated in the neural network 13, and the network parameters of the network are defined for each metal band (5). After passing through the finishing train 2) is optimally modified depending on the measured or calculated influence variable (x nach ) and the measured actual width change (y ist ) during the passage.

Device for adjustment of eccentricity of rolling mill rolls

A component of a rolling load variation which is due to eccentricities of upper and lower backup rolls of the rolling mill is obtained as a first eccentricity compensation signal by removing a rolling load variation component due to a variation of thickness of a material to be rolled from a rolling load variation occurred during the rolling operation. A rolling load variation value due to the roll eccentricity of the backup rolls is obtained from a rolling load variation occurred during rotations of work rolls which are in contact with each other under a load and is memorized as a second roll eccentricity compensation signal. A first signal is obtained by multiplying the first roll eccentricity compensation signal with a coefficient which is larger than 0 and smaller than 1, a second signal is obtained by multiplying 3 the second roll eccentricity compensation signal with another coefficient which is larger than 0 and smaller than 1, and the first and second signals are added to obtain a roll eccentricity compensation signal for the rolling mill.

Rolling method for slab

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method and apparatus for automatic control of rolled stock width

Control setting device and control setting method

본 발명에 관한 제어 설정 장치(200)는, 실행 파라미터 정보를 기억하는 실행 파라미터 정보 기억부(206d)와, SGF 테이블을 기억하는 SGF 테이블 기억부 (206b)와, 마무리 스프레이 코드 테이블을 기억하는 마무리 스프레이 코드 테이블 기억부(206c)와, 강종 패밀리의 성분을 나타내는 성분 정보 테이블을 기억하는 성분 정보 기억부(206e)와, 강종 패밀리에서의 제어 설정치의 조합의 결정이 요구되면, 성분 정보 테이블과, 설정 요구 신호에 포함되는 성분 정보, 목표 판두께 및 목표 판폭과, 제 1의 제어 정보와, 실행 파라미터 정보에 의거하여, 제어 설정치의 조합을 결정함과 함께, 강종에서의 제어 설정치의 조합의 결정이 요구되면, 제 2의 제어 정보와, 설정 요구 신호에 포함되는 강종, 목표 판두께 및 목표 판폭과, 실행 파라미터 정보에 의거하여, 제어 설정치의 조합을 결정하는 제어 설정 결정부(201b)를 구비한다. The control setting device 200 according to the present invention includes an execution parameter information storage section 206d for storing execution parameter information, an SGF table storage section 206b for storing an SGF table, A component information storage unit 206e for storing a component information table indicating the components of the steel species family; and a control unit 206e for determining a combination of the control set values in the steel species family, The combination of the control set values is determined based on the component information included in the set request signal, the target plate thickness and the target plate width, the first control information, and the execution parameter information, and the combination of the control set values Based on the second control information, the type of steel included in the setting request signal, the target plate thickness and the target plate width, and the execution parameter information, The control settings to determine the combination and a determination section (201b).

A method of reduce think gauge abrasion-resistant stee steel plate end to end with plate body thickness difference

本发明公开了一种减小厚规格耐磨钢钢板头尾与板身厚度差的方法，特别适合于生产40～80mm厚的耐磨钢钢板。通过控制所述轧制的钢板最后两个轧制道次的咬入速度为0.8～1.2m/s，咬入长度0.15～0.25m，轧制速度1.8～2.5m/s，并通过减小钢板头尾一定距离的辊缝能有效消除40～80mm厚耐磨钢钢板头尾与板身的厚度差。

Plate thickness control device for rolled material

압연기의 출측에 있어서의 압연재의 두께의 정밀도를 높일 수 있는 압연재의 판 두께 제어 장치를 제공한다. 압연재의 판 두께 제어 장치는, 압연기의 입측에 있어서의 압연재의 두께의 실측값과 기준값의 제1 편차에 기초하여 롤 갭의 제1 변화량을 설정하는 제1 설정부와, 상기 압연기의 입측에 있어서의 압연재의 두께의 실측값과 속도의 실측값과 상기 압연기의 출측에 있어서의 압연재의 속도의 실측값에 의하여 산출되는 상기 압연기의 출측에 있어서의 압연재의 두께 추정값과 기준값의 제2 편차에 기초하여 롤 갭의 제2 변화량을 설정하는 제2 설정부와, 상기 제1 설정부에 의하여 설정된 제1 변화량과 상기 제2 설정부에 의하여 설정된 제2 변화량에 기초하여 상기 압연기에 있어서의 롤 갭의 조작량을 설정하는 제3 설정부와, 상기 압연기의 입측에 있어서의 제1 편차와 상기 압연기의 출측에 있어서의 제2 편차의 비교 결과에 기초하여 상기 제1 설정부의 게인을 조정하는 조정부를 구비하였다. A plate thickness control device of a rolled material capable of increasing the precision of the thickness of the rolled material at the exit side of the rolling mill. A sheet thickness control apparatus for a rolled material is provided with a first setting section for setting a first variation amount of a roll gap based on a first deviation of an actual thickness value of a rolled material at an entrance side of a rolling mill and a reference value, Of the thickness of the rolled material at the output side of the rolling mill calculated by actually measured value of the thickness of the rolled material in the rolling mill and actual measured value of the velocity and the measured value of the velocity of the rolled material at the exit side of the rolling mill, Based on a first variation amount set by the first setting section and a second variation amount set by the second setting section in the rolling mill, Based on a result of comparison between a first deviation at the entrance of the rolling mill and a second deviation at the exit of the rolling mill, and a third setting section for setting an operation amount of the roll gap of the rolling mill And an adjustment unit for adjusting the phosphorus.

Rolling mill control method and device

제어파라메타 변경시의 지령의 급변을 억제해 고융답성을 유지해 나가면서 안정된 제어를 하는 압연제어방식을 제공하는 것이다. 각 제어기구의 제어파라메타 Fx, Fe, Fr, Fd는 동작점의 변화에 따른 제어파라메타 수정기구 41서 수정된다. 압연기 1로부터 상태량 x는 차분기구 51-1에서 전회값에서 감산되어 상태량 차분값이 상태 피이드백 기구 52에서 계수 Fx와 승상되어 압하성분과 속도성분의 조작량 편차가 구해진다. 이 편차값은 적산기수 53에서 전회 조작량에 적산되어 압연기 1의 압하장치 및 틀 구동장치로 출력된다. 지령발생기구 42와 압축판 두께 검출계로부터 제어시점으로부터 수스텝 앞의(미래)예견값이 부여된다. 이러한 수스텝별로 예견값과 각각의 전회값과의 차분값을 구해 피이드 포워드 기구 57 혹은 58의 계수와 승산해 복수 스텝앞까지 고려한 성분별 조작량 편차를 구한다.

Monitoring thickness control method based on improved estimation compensation

本发明提供一种基于改进预估补偿的监视厚度控制方法，采用一阶惯性模型预测不包含延时的出口厚差；使用同步传输模型获得延时后的预测出口厚度，并与出口测厚仪测量值相比较，然后进行滤波得到延时后模型误差；计算比例积分控制器的初始优化参数，并根据现场条件自适应调节，然后依据总误差计算监视AGC控制量。本发明在预测出口厚差的反馈通道中加入了滤波器，通过设计合适的滤波器，可增强系统稳定性，相比Smith预估补偿方法可明显降低系统对模型精度的要求，使得在整个轧制过程中监视AGC都能保持良好的控制性能。

System for regulation of percentage reduction in planishing mill

Plant control equipment

Metal band rolling method (METAL BAND ROLLING PROCESS)

분괴 트레인(1) 및 피니싱 트레인(2)에서 금속 밴드(5)를 로울링할 때, 금속 밴드가 피니싱 트레인으로부터 나올 때 미리 정해진 목표 밴드 폭을 갖도록, 피니싱 트레인(2)에서의 금속 밴드(5)의 폭변동에 대한 예측값(y pre )에 의존하여 분괴 트레인(2)에서 로울링 공정을 조정하는 것은 공지되어 있다. 공정에 작용하는 영향 변수와 폭변동 사이의 관계를 정확히 알지 못함에도 불구하고, 폭변동을 정확하게 예측하기 위해서, 상기 관계가 신경 회로망(13)내에 시뮬레이트되고, 회로망의 회로망 파라미터는 각 금속 밴드(5)가 피니싱 트레인(2)을 통과한 후에, 통과하는 동안 측정 또는 계산된 변수(X nach )와 측정된 실제 폭변동(y ist )에 의존하여 최적으로 수정된다.

A kind of method for reducing Wide and Thick Slab and cutting damage

本发明涉及一种减少宽厚板切损的方法，通过合理的控制钢板头尾鱼尾值及边部内凹值可以有效的减少钢板切边量，从而提高宽厚板的成材率。与现有技术相比，使用本发明方法后的钢板切损量明显减少，每块钢板的成材率可提高0.2％‑0.7％左右。

Plate thickness control unit

Automatic controlling device of sheet thickness in rolling mill

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Automatic plate thickness controller

Method for reducing necking in rolling process

본 발명은 압연 공정에서의 폭 네킹 저감 방법에 관한 것으로, 제어부가 사상압연기를 통과하여 권취기에 진입하는 스트립의 폭 정보를 입력받는 단계, 제어부가 폭 정보에 기초하여 폭 네킹량을 산출하는 단계 및 제어부가 폭 네킹량을 기준치와 비교하여 권취기의 핀치롤 및 맨드릴 중 적어도 하나 이상의 리드율을 보정하는 단계를 포함하며, 본 발명에 따르면 사상압연기를 통과하여 권취기에 진입하는 스트립에 폭 네킹이 발생하는 경우 핀치롤과 맨드릴의 리드율을 보정하여 폭 네킹의 발생을 저감할 수 있기 때문에 생산되는 코일의 폭 품질을 향상시킬 수 있다. The present invention relates to a method of reducing widths in a rolling process, comprising the steps of: receiving width information of a strip passing through a finishing mill and entering a winding machine; calculating a width width based on width information; The control unit corrects at least one lead ratio of the pinch roll and the mandrel of the winding machine by comparing the width of the width with a reference value. According to the present invention, width necking occurs in the strip passing through the finishing mill and entering the winding machine It is possible to reduce the occurrence of width necking by correcting the lead ratio of the pinch roll and the mandrel, thereby improving the quality of the produced coil.

METHOD OF FUNCTIONING FOR A MULTI-HOLE ROLLING MACHINE WITH DETERMINATION OF THE STRIP THICKNESS BASED ON THE CONTINUITY EQUATION

1. Способ функционирования для многоклетьевого прокатного стана, ! - причем полоса (6) подается в одну из прокатных клетей (1-5) (рассматриваемую прокатную клеть) прокатного стана с известной входной толщиной (d1-d4) и выходит из рассматриваемой прокатной клети (2-5) с толщиной (d2-d5) полосы, ! причем определяются измеренные параметры (vR, vW), которые характерны относительно рассматриваемой прокатной клети (2-5) для скорости (v1-v4) полосы (6) со стороны впуска и скорости (v2-v5) полосы (6) со стороны выпуска, ! - причем на основе определенных измеренных параметров (vR, vW) относительно рассматриваемой прокатной клети (2-5) определяется скорость (v1-v4) полосы (6) со стороны впуска и скорость (v2-v5) полосы (6) со стороны выпуска, ! - причем относительно рассматриваемой прокатной клети (2-5) на основе входной толщины (d1-d4), скорости (v1-v4) полосы (6) со стороны впуска и скорости (v2-v5) полосы (6) со стороны выпуска определяется толщина (d2-d5) полосы, ! - причем с учетом определенной толщины (d2-d5) полосы принимаются дополнительные меры, отличающийся тем, что ! - измеренным параметром (vW) для скорости (v1-v4) полосы (6) со стороны впуска является окружная скорость (vW) валков прокатной клети (1-4), непосредственно предшествующей рассматриваемой прокатной клети (2-5), и/или измеренным параметром (vW) для скорости (v2-v5) полосы (6) со стороны впуска является окружная скорость (vW) валков рассматриваемой прокатной клети (2-5), ! - что опережение полосы (6) в соответствующей прокатной клети (2-5) моделируется, и ! - что соответствующая скорость (v1-v5) полосы (6) определяется на основе соответствующей окружной скорости (vR) валков и опережения полосы (6) в соответствующей прокатной клети (1-5). ! 2. Способ РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 139 416 (13) A (51) МПК B21B 37/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2010139416/02, 10.02.2009 (71) Заявитель(и): СИМЕНС АКЦИЕНГЕЗЕЛЛЬШАФТ (DE) ...

Method of setting plate rolling draft schedule

피압연판을 압연하기 위한 패스 스케줄의 설정 방법은, 총 압연 패스수를 설정하는 공정과, 상기 총 압연 패스수에 대한 복수의 패스 스케줄을 가정하는 공정과, 상기 복수의 패스 스케줄의 각각의 패스 스케줄에 대해, 각 패스에 있어서의 상기 피압연판의 특징값과 그 특징값의 이상값의 차분을 각 패스의 출구측 판 두께의 거듭제곱으로 나눈 값을 지표로 하는 평가 함수를 이용하는 공정과, 상기 복수의 패스 스케줄 중, 상기 평가 함수의 값이 최소인 패스 스케줄을 설정하는 공정을 구비한다. The method of setting a pass schedule for rolling a rolled sheet includes a step of setting a total number of rolling passes, a step of assuming a plurality of pass schedules for the total number of rolling passes, and a pass of each of the plurality of pass schedules. A process using an evaluation function that uses a value obtained by dividing the difference between a feature value of the rolled plate in each path and an ideal value of the feature value in each path by a power of the thickness of the exit side plate of each path; And setting a pass schedule of which the value of the said evaluation function is minimum among the said plurality of pass schedules. 피압연판, 패스 스케줄, 판 크라운, 평가 함수, 압연기 Rolled Plate, Pass Schedule, Plate Crown, Evaluation Function, Rolling Mill

Control device and control method for rolling mill and computer readable storage medium

本发明为去除因团块状的硬度不均匀而发生的、残存在出离侧板厚的稍许偏移误差的轧机的控制装置、轧机的控制方法及控制程序。在被轧制材料存在团块状变化的硬度不均匀的情况下，现有的监督程序控制(积分控制)无法去除出离侧板厚干扰，存在偏移状的板厚偏差的问题。解决手段为，从串列式轧制的前段机座或可逆式轧制的前轧道的轧制结果预测硬度不均匀的变化比率，对积分控制加以修正，从而抑制板厚偏差的偏移误差。

Patent JPH0379088B2

Apparatus for automatic control of strip length

1. УСТРОЙСТВО ДЛЯ АВТОМАТИЧЕСКОГО РЕГУЛИРОВАНИЯ ТОЛЩИНЫ ПОЛОСЫ, содержащее датчик толщины полосы, датчики входной и выходной скорости полосы, измеритель входной толщины, делитель регул тор обжати , вычислительный блок, задатчик номинальной выходной толщины и переключатель, причем первый и второй входы измерител  входной толщины соединены соответственно с выходом датчика толщины и выходом датчика входной скорости, першлй вход делител  соединен с выходом датчика выходной скорости полосы , первый выход задатчика номинальной выходной толщины соединен с первым входом переключател , а выход регул тора обжати  соединен со входом системы перестановки валков, отличающеес  тем, что, с целью обеспечени  возможиости прокатки полос заданной длины с монотонно иэмен кщейс  заданной толщиной и тем самым снижени  расхода металла в конструкци х, оно дополнительно содержит измеритель длины выход щей полосой, задатчик длины выход щей полосы, ключ, компаратор,триг- , гер, причем выход датчика выходной скорости полосы соединен с входами измерител  длины выход щей полосы и первым входом ключа, выход измерител  длины выход щей полосы через ключ соединен с первым входом компаратора , второй вход которого соединен с выходом задатчика длины выход щей полослл, выход задатчика длины выход щей полосы соединён также с первым входом вычислительного блока , второй вход вычислительного блока соединен с датчиком выходной скорости полосы,выход компаратора соединен со вторым входом ключа и через триггер с третьим входом переключател , второй вход которого соединен со вторьм выходом задатчика номинальной выходной толщины, первый и второй выхода переключател  соединены с третьим и четвертым входами вычислительного блока, выход вычислительш ного блока соединен с первым входом регул тора обжати , второй вход которого соединен с выходом.измерител  входной толщины полосы. § 2,Устройство по П.1, о т л и i4 а ю щ е е с   тем, что ЁЫЧИСПИ; тельный блок содержит делитель,блок вычитани  и блок умножени , причем ...

Method and apparatus for automatic thickness control in rolling mill

Method of operation of multi-stand rolling mill with strip depth determination proceeding from continuity equation

FIELD: process engineering. SUBSTANCE: invention relates to metal forming. Strip 6 is fed to one of mill stands 1-5 with known inlet thickness d1-d4 and leaves mill stand 2-5 with thickness d2-d5. Measurement parameters vR, vW are measured that are typical for strip speed v1-v4 on inlet side and speed v2-v5 on outlet side. Measured parameters vR, vW are used to define strip speed v1-v4 and v2-v5. On the basis of inlet depth d1-d4, speed v1-v4 and speed v2-v5 defined is strip depth d2-d5. Measured parameter vW for strip speed v1-v4 can be represented by roll circumferential speed vW at mill stand 1-4 ahead of stand 2-5. Advance of strip 6 in appropriate mill stand 2-5 is simulated. Appropriate strip speed v1-v5 is defined on the basis of appropriate circumferential speed vR of rolls and strip advance at appropriate mill stand 1-5. EFFECT: perfected control over rolling mill. 23 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 507 016 (13) C2 (51) МПК B21B 37/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010139416/02, 10.02.2009 (24) Дата начала отсчета срока действия патента: 10.02.2009 (73) Патентообладатель(и): СИМЕНС АКЦИЕНГЕЗЕЛЛЬШАФТ (DE) R U Приоритет(ы): (30) Конвенционный приоритет: 27.02.2008 DE 102008011275.5 (72) Автор(ы): ФЕЛЬКЛЬ Ханс-Йоахим (DE) (43) Дата публикации заявки: 10.04.2012 Бюл. № 10 2 5 0 7 0 1 6 (45) Опубликовано: 20.02.2014 Бюл. № 5 (56) Список документов, цитированных в отчете о поиске: JP 06 210338 A, 02.08.1994. RU 2193937 C1, 10.12.2002. JP 04158912 A, 02.06.1992. RU 2156175 C2, 10.12.2002. DE 3303829 C2, 15.06.1989. RU 2067905 C1, 20.10.1996. 2 5 0 7 0 1 6 R U (86) Заявка PCT: EP 2009/051503 (10.02.2009) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.09.2010 (87) Публикация заявки РСТ: WO 2009/106422 (03.09.2009) Адрес для переписки: 129090, Москва, ул.Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. А.В.Мицу, ...

Thickness control method and system for a single-stand / multi-pass rolling mill

내용 없음.

Roll eccentricity removing device for rolling mill

Auto tuning method of plate thickness controller

본 발명은 냉각압연에서 냉연판 두께를 제어하는 방법에 관한 것으로서, 냉간압연에서 첫번째 스탠드 후단의 두께계(2)를 이용하여 일정시간에 두께를 샘플링(Sampling)한 후 그 편차량과 로드셀(1)의 압연하중을 이용 연산기(11)로 를 구하고, 를 이용하여 구한 새로운 α*로 (여기서, P:압연하중, Δα:제어파라미터 변동량,

Apparatus for compensating effect of rolling rolls eccentrity

Thickness control method for rolling heavy plate and control apparatus thereof

Disclosed are a thickness control method for a rolling heavy plate and a control apparatus thereof. The thickness control method for a rolling heavy plate of the present invention comprises the steps of: a control unit′s receiving an input of rolling information from a higher control unit to calculate a rolling pass schedule; the control unit′s rolling according to the rolling pass schedule to calculate the deformation resistance of the prior pass; the control unit′s reflecting the deformation resistance of the prior pass and the temperature deviation between the central part and the end part of the materials generated in a heating furnace, which is received from the higher control unit to calculate the thickness compensation quantity of the front end of the current pass; and, the control unit′s applying the thickness compensation quantity of the front end to the control of thickness of the current pass to perform rolling.

Apparatus for compensating back-up roll eccentricity

Gauge control system of a cold rolling mill

A kind of thickness of single-stand cold-rolling machine and the decoupling control method and system of tension

本发明提供一种单机架冷轧机的厚度与张力的解耦控制方法，计算得到前馈AGC控制量所对应的速度补偿量；计算得到秒流量AGC控制量所对应的速度补偿量；计算得到监视AGC控制量所对应的速度补偿量；将各AGC方式对应的速度补偿量进行求和，得到总速度补偿量，将总速度补偿量转换为加速转矩补偿量，将该加速转矩补偿量提供给入口卷取机的传动控制单元，由传动控制单元控制入口卷取机的转矩，在厚度控制时对入口张力进行补偿。本方法实现了根据厚度控制量对入口张力的预控，削弱了厚度控制和张力控制之间的强耦合关系，进而提高了整体厚度控制和张力控制的精度，提高了成材率。

Roll eccentricity removing method

Controlling method of sheet thickness in strip rolling

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Feed-forward automatic plate thickness control method

A kind of method and apparatus controlling mill milling finished steel

本发明公开了一种控制轧机轧制成品钢材的方法和装置。该方法包括：获取虚拟焊缝信息，虚拟焊缝信息包括每卷待轧制钢材的厚度、成品钢材的厚度和/或每卷待轧制钢材的宽度；根据虚拟焊缝信息确定成品钢材的重量；根据成品钢材的重量确定成品钢材的虚拟焊缝，虚拟焊缝是成品钢材在每卷待轧制钢材上的切割位置；根据虚拟焊缝与交接点的距离确定控制参数，交接点是轧机的入口区与轧机区的交接位置；通过控制参数控制每卷待轧制钢材改变规格成为成品钢材，成品钢材是预定规格和预定重量的钢材。通过本发明解决了无法根据重量需求直接轧制成品钢材的问题，根据预定重量直接轧制为预定规格的成品钢材，无需后续分切处理，节约钢材和时间。

Rolling method of thick plate

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Patent JPS5234030B2

Patent JPS6230042B2

A kind of milling method of strip

本发明公开一种带钢的轧制方法，所述轧制方法包括：根据板坯的厚度和粗轧机组的轧制承受极限，确定所述中间坯的厚度值，所述板坯的厚度根据需要轧制成的带钢的厚度确定；判断所述中间坯的厚度值是否在所述的中间坯厚度要求值内；若是，则根据所述中间坯的厚度值对所述板坯进行粗轧、飞剪和精轧，获得所述带钢。通过根据板坯的厚度和粗轧机组的轧制承受极限，确定所述中间坯的厚度值，从而使得所述中间坯的厚度尽可能的降低，进而减少了中间坯的切头切尾重量，提高了成材率，降低生产成本，改善了现有技术中的轧制方法轧制的中间坯的厚度较厚，增加了切头切尾的重量，极大降低了带钢成品的成材率，增加了生产成本的技术问题。

Apparatus for automatic maintaining of rolled stock constant thickness

Optimizing apparatus for gauge controller

WALZSTRASSE

Plate thickness control device for rolled material

압연기의 출측에 있어서의 압연재의 두께의 정밀도를 높일 수 있는 압연재의 판 두께 제어 장치를 제공한다. 압연재의 판 두께 제어 장치는, 압연기의 입측에 있어서의 압연재의 두께의 실측값과 기준값의 제1 편차에 기초하여 롤 갭의 제1 변화량을 설정하는 제1 설정부와, 상기 압연기의 입측에 있어서의 압연재의 두께의 실측값과 속도의 실측값과 상기 압연기의 출측에 있어서의 압연재의 속도의 실측값에 의하여 산출되는 상기 압연기의 출측에 있어서의 압연재의 두께 추정값과 기준값의 제2 편차에 기초하여 롤 갭의 제2 변화량을 설정하는 제2 설정부와, 상기 제1 설정부에 의하여 설정된 제1 변화량과 상기 제2 설정부에 의하여 설정된 제2 변화량에 기초하여 상기 압연기에 있어서의 롤 갭의 조작량을 설정하는 제3 설정부와, 상기 압연기의 입측에 있어서의 제1 편차와 상기 압연기의 출측에 있어서의 제2 편차의 비교 결과에 기초하여 상기 제1 설정부의 게인을 조정하는 조정부를 구비하였다.

Automatic sheet thickness control device

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Automatic control system for rolling mill

Automatic strip thickness control device

Automatic thickness control on a four-high rolling mill - using computer to control all the process variables

Appts. on a rolling mill for controlling the thickness of a rolled product passing through one stand, the novelty being that means are provided for measuring (a) the present exit thickness w.r.t. (b) the present rolling effort; (c) the present roll-gap without the workpiece; (d) the known elasticity of the rolling mill stand; (e) the plasticity (P2) of the piece; and means for (f) calculating a predetermined entry thickness; and for (g) controlling (a) taking account of (e) and using a pre-determined relationship existing between (a), (f) and a pre-determined value for (b). The plasticity (P2) is pref. obtd. using P2 = (G1 - G2)/F2 where G1 is (f) above; G2 = (a) and F2 is (b) above.

Automatic adjustment device for tandem rolling mill

Strip or plate caliber control - in metal rolling mills

Calibre control assembly for a rolling mill, with at least one stand of rolls, having a controlled gap between the rolls through which passes the workpiece to be rolled, comprising means for determining an error in calibre in a part of the workpiece at a pre-determined distance upstream from the stand, and for controlling the opening of the rolls in accordance with such error, as well as means for determining the period for which it controls the opening of the rolls and which can be terminated by the roll opening control means, when this part of the workpiece reaches that particular roll stand and which can control the opening of the rolls for a time equal to that period.

Patent FR2110419A1

Strip thickness continuous control appts - using an analogue retarding appts a slow correction loop and an automatic adjustment loop

Appts. consists of a calculating system which determines the difference between the theoretical and desired supplies of strip at the entry and exit from to the rolls and the actual supply at the entry. These values are proportional to the product of strip speed and thickness measured at a given point. The system also controls the strip thickness control apparatus from deviation between the desired value and measured value. The value of the strip thickness deviation is stored in an analogue retarding apparatus during the time necessary for the correction to be carried out at the precise moment when the measured point passes under the rolls. A slow correction loop utilisers the strip thickness deviation at the roll exit and corrects it progressively using an amplifier integrator. An automatic adjustment loop for the correction gain uses the difference between a precalculated fraction of the thickness deviation at a given point and the thickness deviation at the roll exit. This loop functions alternately with the slow correction loop.

DEVICE AND METHOD FOR DETECTING THE SEPARATION FORCE OF CYLINDERS OF A ROLLING MILL

DISPOSITIF ET PROCEDE PERMETTANT D'OBTENIR UN SIGNAL PLUS PRECIS REPRESENTANT LA FORCE DE SEPARATION DES CYLINDRES D'UN LAMINOIR EN VUE D'UNE UTILISATION AVEC UN SYSTEME DE COMMANDE AUTOMATIQUE DE CALIBRE. IL COMPREND: A.DES MOYENS POUR PRODUIRE UN SIGNAL DE FORCE REPRESENTANT LA FORCE DETERMINEE PAR LA PRESENCE DE LA PIECE ENTRE LES CYLINDRES; B.DES MOYENS POUR PRODUIRE UN SIGNAL DE CONTRAINTE REPRESENTANT LES CONTRAINTES PRODUITES DANS LA CAGE DU LAMINOIR PAR LA PRESENCE DE LA PIECE ENTRE LES ROULEAUX; C.DES MOYENS 76, 80, 84 POUR COMBINER LE SIGNAL DE FORCE ET LE SIGNAL DE CONTRAINTES POUR ENGENDRER UN SIGNAL DE COMMANDE; ET D.UN SYSTEME DE COMMANDE D'INTERVALLE SENSIBLE AU SIGNAL DE COMMANDE POUR, EN REPONSE, COMMANDER LES MOYENS DE REGLAGE D'INTERVALLE. APPLICATION AUX LAMINOIRS. DEVICE AND PROCESS FOR OBTAINING A MORE PRECISE SIGNAL REPRESENTING THE SEPARATION FORCE OF THE CYLINDERS OF A ROLLER FOR USE WITH AN AUTOMATIC CALIBER CONTROL SYSTEM. IT INCLUDES: A. MEANS FOR PRODUCING A FORCE SIGNAL REPRESENTING THE FORCE DETERMINED BY THE PRESENCE OF THE PART BETWEEN THE CYLINDERS; B. MEANS TO PRODUCE A STRESS SIGNAL REPRESENTING THE STRESSES PRODUCED IN THE ROLLER CAGE BY THE PRESENCE OF THE PART BETWEEN THE ROLLERS; C. MEANS 76, 80, 84 FOR COMBINING THE FORCE SIGNAL AND THE STRESS SIGNAL TO GENERATE A CONTROL SIGNAL; AND D. AN INTERVAL CONTROL SYSTEM SENSITIVE TO THE COMMAND SIGNAL TO, IN RESPONSE, CONTROL THE INTERVAL ADJUSTMENT MEANS. APPLICATION TO LAMINERS.

Automatic gauge control - of cold rolled strip with compensation for delay in thickness measurement