hot roll mill hydraulic system

  • Hot Rolling Mill Hydraulic Gap Control ( HGC

     · In this article the AGC (Automated Gauge Control) system of a hot rolling mill is analyzed and different methods are described to improve its performance. The mill stretch compensation and other disturbances during the rolling process are compensated and a rolling speed dependent adaptive PI controller is developed to accomplish fine thickness control. The improved system has been validated

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  • Products › Flat › Hot Strip Mills Modern rolling mills

    The Hot Strip Mill represents the most productive solution for flat rolled products. It provides the highest level of productivity together with a large product mix and outstanding quality. Yearly productivity of Hot Strip Mills can vary from 2 to 6 Mtpy depending on the configuration that is selected.

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  • HOT STRIP MILLS Mechanical Equipmentsms-siemag

     · Drum-type shear with hydraulic knife clamping device in a hot strip mill. RECENT REFERENCES 2005 Corus IJmuiden Netherlands 2004 Outokumpu Avesta Sweden 2004 Shanghai Meishan Corp. China 2003 Outokumpu Tornio Finland 2003 Ternium formerly Sidor (Techint Group) Venezuela 2002 PT Krakatau Steel Indonesia 2001 Corus IJmuiden Netherlands

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  • The Hot Rolling ProcessCalifornia Steel

    The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point then roll them thinner and longer through 12 successive rolling mill stands driven by motors totaling 77 000 hp and finally coiling up the lengthened steel sheet for transport to the next process.

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  • Rolling of steel in Hot Strip MillIspatGuru

     · The position of each roll is fed back to the finishing mill s sophisticated automation system which along with information from the load cells that monitor rolling force and from the X-ray gauge measuring final strip thickness work to smoothly adjust the roll gaps and speeds to maintain stable rolling of strip to the necessary thickness in

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  • The Hot Rolling ProcessCalifornia Steel

    The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point then roll them thinner and longer through 12 successive rolling mill stands driven by motors totaling 77 000 hp and finally coiling up the lengthened steel sheet for transport to the next process.

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  • Dynamic matrix predictive control for a hydraulic looper

     · Controlling the looper height and strip tension is important in hot strip mills because these variables affect both the strip quality and strip threading. Many researchers have proposed and applied a variety of control schemes for this problem but the increasingly strict market demand for strip quality requires further improvements. This work describes a dynamic matrix predictive control (DMC

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  • 18 Roll Hydraulic Rolling MillCold Rolling Mill- Hani Tech

    18 Roll Hydraulic Rolling Mill There are two types of 18-roll hydraulic rolling mill—-Z-high type and S-high type in which 4 sets of side support devices are added to the HC six roll mill. The rolling mill is suitable for processing stainless steel carbon steel and non-ferrous metal strips.

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  • SMS group CVC ® plus bending and shifting systems

     · Short-stroke CVC ® system with integrated backup roll balancing system and a shifting stroke of ±150 millimeters. Succesful product Within the next few years the CVC ® system was integrated in a large number of various types of hot rolling mills due to its simple and efficient operating principle combined with robust and reliable mechanical

    Chat Online
  • Products › Flat › Hot Strip Mills Modern rolling mills

    The Hot Strip Mill represents the most productive solution for flat rolled products. It provides the highest level of productivity together with a large product mix and outstanding quality. Yearly productivity of Hot Strip Mills can vary from 2 to 6 Mtpy depending on the configuration that is selected.

    Chat Online
  • Modeling and Simulation of Electric-hydraulic Control

     · Hydraulic bending roll system has become one of key equipments to control the exit strip shape in strip rolling mills. The hydraulic bending roll system of a hot rolling mill was researched and analyzed and its mathematics models were founded in whole based on the action principle of some representative hydraulic components. At last the hydraulic bending roll system was simulated with

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  • A BASIC UNDERSTANDING OF THE MECHANICS OF

     · In the late 1990s finally ICDP enhanced with carbide improved roll performance and started a new phase for this old grade still successfully in use today in work rolls for early finishing stands of finishing hot strip mills (replacing high chromium iron and HSSsee further down) and for plate mills.

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  • Designing of Hot Strip Rolling Mill Control System

    Aimed at the complex demand of hot strip rolling mill in practicing the configuration of the coiler and the technological process is analyzed. The arithmetic of coiling tension and the control process is introduced. The frame of the tension adjusting system is given. The coiler control system hardware is designed. The system is designed scientifically with steady control and meets demand of

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  • SMS group CVC ® plus bending and shifting systems

     · Short-stroke CVC ® system with integrated backup roll balancing system and a shifting stroke of ±150 millimeters. Succesful product Within the next few years the CVC ® system was integrated in a large number of various types of hot rolling mills due to its simple and efficient operating principle combined with robust and reliable mechanical

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  • Strip Thickness Control of Cold Rolling Mill with Roll

     · roll necks due to irregularities in the mill rolls and/or roll bearings 11 . These irregularities cause cyclic deviations in the strip thickness at the output of a mill stand. Figure 3. depicts the effects of eccentricity on the output strip thickness 6 . When the entry strip is passed through the roll stand with 4.1. the velocity . v. in

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  • Hot Rolling Mill Hydraulic Gap Control ( HGC

     · In this article the AGC (Automated Gauge Control) system of a hot rolling mill is analyzed and different methods are described to improve its performance. The mill stretch compensation and other disturbances during the rolling process are compensated and a rolling speed dependent adaptive PI controller is developed to accomplish fine thickness control. The improved system has been validated

    Chat Online
  • Measuring Systems in Hot Strip Mills

     · ogy in Hot Strip Mills since 1998. The following IMS measuring sys-tems are integrated into one gaug-ing system in this example of a typi-cal Hot Strip Mill configuration • width measurement at the Roughing Mill entry • isotope profile measurement at the Roughing Mill exit • width and crop length measure-ment and optimisation system

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  • (PDF) Hot Rolling Mill Hydraulic Gap Control (HGC

    The positive roll bending force influences the mill stretch force but does not have any effect on the rolling force. TaperingThe hot rolled strip is later processed by a cold rolling mill and to facilitate the threading operation tapering is applied.

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  • A BASIC UNDERSTANDING OF THE MECHANICS OF

     · cooling system. Problems of this kind can never really be calculated but they have a detrimental effect on all rolling schedules including stresses in the roll. As regards "abnormal" rolling conditionswhich are more or less very "normal" for rolling millsroll damage often occurs with consequences for the mill and the rolled product.

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  • Modeling and Simulation of Electric-hydraulic Control

     · mills. The hydraulic bending roll system of a hot rolling mill was researched and analyzed and its mathematics models were founded in whole based on the action principle of some representative hydraulic components. At last the hydraulic bending roll system was simulated with MATLAB by

    Chat Online
  • 18 Roll Hydraulic Rolling MillCold Rolling Mill- Hani Tech

    18 Roll Hydraulic Rolling Mill There are two types of 18-roll hydraulic rolling mill—-Z-high type and S-high type in which 4 sets of side support devices are added to the HC six roll mill. The rolling mill is suitable for processing stainless steel carbon steel and non-ferrous metal strips.

    Chat Online
  • Closed-Loop System in Hydraulic Automatic

     · control approach for the thickness profile of strips in a tandem hot rolling mill 9 . Kovari 10 studied the e ect of internal leakage in a hydraulic actuator on dynamic behaviors of the hydraulic positioning system. Li et al. 11 presented a robust output-feedback control algorithm with an

    Chat Online
  • The Hot Rolling ProcessCalifornia Steel

    The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point then roll them thinner and longer through 12 successive rolling mill stands driven by motors totaling 77 000 hp and finally coiling up the lengthened steel sheet for transport to the next process.

    Chat Online
  • SpoolHydraulic System

     · We Spool Hydraulics India Pvt. Ltd a leading Engineering Business Group. of companies have taken over Intertech Engineers Assets Skilled work force. Intertech Engineers had been in manufacturing of Hydraulic system like Hydraulic Power pack Hydraulic cylinders Hydraulic Presses supply of Complete hydraulic solution from last 14 Years.

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  • A BASIC UNDERSTANDING OF THE MECHANICS OF

     · cooling system. Problems of this kind can never really be calculated but they have a detrimental effect on all rolling schedules including stresses in the roll. As regards "abnormal" rolling conditionswhich are more or less very "normal" for rolling millsroll damage often occurs with consequences for the mill and the rolled product.

    Chat Online
  • Coupling vibration model for hot rolling mills and its

    Firstly a coupling dynamic mathematic model of hot rolling mill vibration which includes the roll system the mill rack the hydraulic subsystem automatic position control () mill modulus control AGC and rolling process is proposed.

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  • Stretch Leveler Machine Hydraulic Roller Levelers

    Brush Roll Scale Collection System If you are a service center that roller levels or stretch levels hot-rolled material then you are familiar with the problems associated with scale dust. Airborne scale dust can cause havoc on your coil processing equipment by clogging air filters on electrical cabinets hydraulic air filter systems and HVAC

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  • SMS group CVC ® plus bending and shifting systems

     · Short-stroke CVC ® system with integrated backup roll balancing system and a shifting stroke of ±150 millimeters. Succesful product Within the next few years the CVC ® system was integrated in a large number of various types of hot rolling mills due to its simple and efficient operating principle combined with robust and reliable mechanical

    Chat Online
  • Steel Mill applicationsBrant Hydraulics

    BRANT HYDRAULICS has extensive experiences and capabilities on building heavy-duty cylinders for steel mill applications. Steel mills cylinders have been one of our strength over years and our customers are always satisfy with our cylinders. Over the years our steel mill applications has covered the whole steel making production line. We have experiences in doing ALL the steel mill cylinders

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  • Hydraulic gap control of rolling mill based on self-tuning

    2.2 Mathematical model. The control block of the HGC system can be seen in Fig. 4 where r denotes the HGC reference and x p denotes the actuator piston position.. The operation principle of a valve-controlled hydraulic cylinder is shown in Fig. 5 where p 0 and p s is the return pressure and supply pressure respectively. A 1 and A 2 are the areas of the cavity and the rod cavity

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  • Hot Rolling Mill Hydraulic Gap Control ( HGC

     · In this article the AGC (Automated Gauge Control) system of a hot rolling mill is analyzed and different methods are described to improve its performance. The mill stretch compensation and other disturbances during the rolling process are compensated and a rolling speed dependent adaptive PI controller is developed to accomplish fine thickness control. The improved system has been validated

    Chat Online
  • HOT STRIP MILLS Mechanical Equipmentsms-siemag

     · with hydraulic sideguides and the associated automation system horizontal adjusting systems in the roughing stand minimize camber and wedge and thus ensure the rolling of a straight transfer bar. The forward stands of a finishing mill are equipped with hydraulic adjusting systems to safeguard stable strip travel while the close thickness tolerances of

    Chat Online
  • 18 Roll Hydraulic Rolling MillCold Rolling Mill- Hani Tech

    18 Roll Hydraulic Rolling Mill There are two types of 18-roll hydraulic rolling mill—-Z-high type and S-high type in which 4 sets of side support devices are added to the HC six roll mill. The rolling mill is suitable for processing stainless steel carbon steel and non-ferrous metal strips.

    Chat Online
  • Steel Mill applicationsBrant Hydraulics

    BRANT HYDRAULICS has extensive experiences and capabilities on building heavy-duty cylinders for steel mill applications. Steel mills cylinders have been one of our strength over years and our customers are always satisfy with our cylinders. Over the years our steel mill applications has covered the whole steel making production line. We have experiences in doing ALL the steel mill cylinders

    Chat Online
  • What Are the Characteristics of Rolling Mill Hydraulic

    In the rolling work on the one hand we must pay attention to controlling the running status of the rolling mill machine and on the other hand we must ensure that the hydraulic piping system is operating normally.Therefore in order to meet the production requirements the rolling mill piping subsystem mainly includes auxiliary hydraulic pressure servo-hydraulic pressure thin oil

    Chat Online
  • Measuring Systems in Hot Strip Mills

     · ogy in Hot Strip Mills since 1998. The following IMS measuring sys-tems are integrated into one gaug-ing system in this example of a typi-cal Hot Strip Mill configuration • width measurement at the Roughing Mill entry • isotope profile measurement at the Roughing Mill exit • width and crop length measure-ment and optimisation system

    Chat Online
  • HOT STRIP MILLS Mechanical Equipmentsms-siemag

     · Drum-type shear with hydraulic knife clamping device in a hot strip mill. RECENT REFERENCES 2005 Corus IJmuiden Netherlands 2004 Outokumpu Avesta Sweden 2004 Shanghai Meishan Corp. China 2003 Outokumpu Tornio Finland 2003 Ternium formerly Sidor (Techint Group) Venezuela 2002 PT Krakatau Steel Indonesia 2001 Corus IJmuiden Netherlands

    Chat Online
  • Modelling of the hydraulic work roll bending control

    For modern hot rolling mills the typical hydraulic circuit was designed to control the roll bending force during rolling process. The most common operating modes of the roll bending system were studied rolling start and stop. The bending roll control system was designed in the form of functional blocks connecting the actuators sensors and sided subsystems of the rolling control.

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  • Closed-Loop System in Hydraulic Automatic

     · control approach for the thickness profile of strips in a tandem hot rolling mill 9 . Kovari 10 studied the e ect of internal leakage in a hydraulic actuator on dynamic behaviors of the hydraulic positioning system. Li et al. 11 presented a robust output-feedback control algorithm with an

    Chat Online
  • Modeling and Identification of Hydraulic System on Rolling

     · The identification of a hydraulic system on a hot rolling mill is described. The rolling mill is in operation at The Danish Steelworks Ltd. in Frederiksværk Denmark. The hydraulic system is used for thickness control of the rolled plates. A non linear model for the system is

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  • What Are the Characteristics of Rolling Mill Hydraulic

    In the rolling work on the one hand we must pay attention to controlling the running status of the rolling mill machine and on the other hand we must ensure that the hydraulic piping system is operating normally.Therefore in order to meet the production requirements the rolling mill piping subsystem mainly includes auxiliary hydraulic pressure servo-hydraulic pressure thin oil

    Chat Online

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