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Hot Rolling Mill Hydraulic Gap Control

When rolling with automated profile control is introduced at the plate mill it imposes strict requirements to accuracy of automated gauge control The structure of the Hydraulic Gap Control HGC

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Introduction of hot rolling mill hydraulic gap control
  • Automatic Gauge Control AGC Hydraulic Gap Control HGC
    Automatic Gauge Control AGC Hydraulic Gap Control HGC

    Honeywells Automatic Gauge Control AGC and Hydraulic Gap Control HGC incorporated with the MetalsMaster gauging system enable mills to deliver the right gauge thickness with the least product variation

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  • Nonlinear Hydraulic Gap Control A Practical Approach
    Nonlinear Hydraulic Gap Control A Practical Approach

    Modern rolling mills contain several feedback loops and the roll gap is usually adjusted by a hydraulic system Since the HGC is part of the most inner control loop in this cascaded structure the use of a controller with high dynamics for the hydraulic positioning system is essential due to

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  • Hydraulic power unit cold roll mill gap control Henan
    Hydraulic power unit cold roll mill gap control Henan

    Hot Rolling Mill Hydraulic Gap Control HGC thickness control improvement Peter Kucsera Zsolt Bres buda University Tavaszmez u 1517 H1084 Budapest HungaryWork roll bending forces are applied using hydraulic cylinders to the work roll shafts located at both roll ends As a simplified explanation positive or crownin 4

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  • Thickness Control for a Steel Beam MATLAB Simulink
    Thickness Control for a Steel Beam MATLAB Simulink

    Figure 2 Rolling Mill Stand The desired H shape is impressed by two pairs of rolling cylinders one per axis positioned by hydraulic actuators The gap between the two cylinders is called the roll gap The goal is to maintain the x and y thickness within specified tolerances

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  • Identification and optimization for hydraulic roll gap
    Identification and optimization for hydraulic roll gap

    Jun 12 2015 Abstract In order to improve the control performance of strip rolling mill theoretical model of the hydraulic gap control HGC system was established HGC system offline identification scheme was designed for a tandem cold strip mill the system model parameters were identified by ARX model and the identified model was verified

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  • Automatic Gauge Control in Rolling Process Based on
    Automatic Gauge Control in Rolling Process Based on

    Automatic rolling process is a highspeed system which always requires highspeed control and communication capabilities Meanwhile it is also a typical complex electromechanical system distributed control has become the mainstream of computer control system for rolling mill Generally the control system adopts the 2level control structurex2014basic automation Level 1 and process

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  • Influence of Internal Leakage in Hydraulic Capsules on
    Influence of Internal Leakage in Hydraulic Capsules on

    In hot rolling mills the plastic deformation of the strip is realized at high force and plastic strain speed controlled by electrohydraulic servo actuators These hydraulic servo actuators hydraulic capsules are capable to adjust the rolling gap at great rolling force dynamically The dynamic behaviour of the rolling mills AGC automatic gap adjustment system mainly depends on the

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  • Strip Thickness Control of Cold Rolling Mill with Roll
    Strip Thickness Control of Cold Rolling Mill with Roll

    stress experienced by the strip material in the roll gap 78 That is F Y wL avg 5 where w width of the strip R is radius of work roll 32 Output Thickness Equation In the cold rolling process and the precision is strip thickness of cold rolled strips of key quality products Conventional Automatic roll gap Control where Gauge

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  • PDF Modelling and control of a hot rolling mill
    PDF Modelling and control of a hot rolling mill

    Hydraulic automatic gauge control AGC is a very important part of rolling mill for magnesium plate rolling The control effect of automatic gauge control system influences the quality of the

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  • rolling mill conveyor hydraulic circuit
    rolling mill conveyor hydraulic circuit

    P Kucsera et al Hot Rolling Mill HGC Thickness Control Improvement 94 load between passes and for accurate positioning during rolling two hydraulic cylinders are installed The position of the cylinders is controlled by servo valves and the corresponding position controllers

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  • Figure 1 from Strip Thickness Control of Cold Rolling Mill
    Figure 1 from Strip Thickness Control of Cold Rolling Mill

    DOI 104236eng201461005 Corpus ID 30768077 Strip Thickness Control of Cold Rolling Mill with Roll Eccentricity Compensation by Using Fuzzy Neural Network articleHameed2014StripTC titleStrip Thickness Control of Cold Rolling Mill with Roll Eccentricity Compensation by Using Fuzzy Neural Network authorWaleed Ishaq Hameed and Khearia A Mohamad journalEngineering

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  • Hydraulic gap control of rolling mill based on selftuning
    Hydraulic gap control of rolling mill based on selftuning

    Dec 05 2016 A closedloop control system for the hydraulic gap control HGC that is driven by electrohydraulic servo valves is developed for practical application Based on the mathematical model estimated by a system identification technique the control algorithm is designed and the fuzzy inference rules are established

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  • PDF Influence of Internal Leakage in Hydraulic Capsules
    PDF Influence of Internal Leakage in Hydraulic Capsules

    In hot rolling mills the dynamic control of rolling gap and force is realized with help of electrohydraulic servo actuators socalled hydraulic cylinder capsule which can adjust the rolling

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  • State of the art in hot rolling process control
    State of the art in hot rolling process control

    The complex control systems have been applied to hot rolling processes and now the control area covers the whole line The process technology of hot strip mill has matured however the development of advanced control in this area is still active for the reason that the demand to improve quality has become increasingly severe

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  • SUPERIOR MILL PERFORMANCE Primetals Technologies
    SUPERIOR MILL PERFORMANCE Primetals Technologies

    Primetals Technologies installed and equipped the No 2 Hot Strip Mill at Usiminas with some of the worlds most advanced hotrolling technologies The demand for a highreduction mill capable of rolling advanced steel grades at thinner gauges and with improved strip crown and shape control was fully met

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  • hydraulics of rolling mill
    hydraulics of rolling mill

    Aluminum hot rolling mills Achenbach Buschhtten Co KG Sliding Mode Control of Strip Rolling Mill Hydraulic AGC System Hydraulic automatic gauge control AGC is a very important part of rolling mill for magnesium plate rolling The control effect of automatic gauge control system

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  • Nonlinear Hydraulic Gap Control A Practical Approach
    Nonlinear Hydraulic Gap Control A Practical Approach

    Modern rolling mills contain several feedback loops and the roll gap is usually adjusted by a hydraulic system Since the HGC is part of the most inner control loop in this cascaded structure the use of a controller with high dynamics for the hydraulic positioning system

    Get Price
  • Hot Rolling Mill Hydraulic Gap Control HGC thickness
    Hot Rolling Mill Hydraulic Gap Control HGC thickness

    PDF Hot Rolling Mill Hydraulic Gap Control HGC thickness control improvement Zsolt Bres and Akram KAHLI 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

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  • roll mill hydraulic loading cylinder sale
    roll mill hydraulic loading cylinder sale

    Hot Rolling Mill Hydraulic Gap Control HGC thickness control Hot Rolling Mill HGC Thickness Control Improvement 94 load between passes and for accurate positioning during rolling two hydraulic cylinders are Chat Now Machinery for Sale Galaxie Corporation

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  • PDF Hot rolling mill hydraulic gap control HGC
    PDF Hot rolling mill hydraulic gap control HGC

    When rolling with automated profile control is introduced at the plate mill it imposes strict requirements to accuracy of automated gauge control The structure of the Hydraulic Gap Control HGC

    Get Price
  • 60 YEARS OF ROLLING MILL TECHNOLOGY By Ford B
    60 YEARS OF ROLLING MILL TECHNOLOGY By Ford B

    Rolling mills are not a standard machine tool nor are they built for stock They are designed and builttoorder to specifically accomplish an end product or process At one point during the industrial revolution in America the United States led the world in hot and cold rolling plate mills slabbing mills and blooming mills

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  • Rolling of hot strip and strip defects IspatGuru
    Rolling of hot strip and strip defects IspatGuru

    Jan 14 2017 Precise control of gauge of rolled strip can be done by adjusting the roll gap Gauge control in hot strip rolling mills is achieved through measurement of strip thickness using xray gauge and adjusting the strip tension using feedback control system hydraulic jacks are used which control the elastic deformation of rolls according to

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  • hydraulic power unit cold roll mill gap control
    hydraulic power unit cold roll mill gap control

    hydraulic power unit cold roll mill gap control Better gap control improves quality and speed It also serves as an emergency power source to fully open the roll gap should electrical power be lost Plus the hydraulic power unit can be located away from the roll mill thereby reducing installation space requirements even more But the list of advantages goes on The motors low

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