application of an agc in hot strip rolling mills

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application of an agc in hot strip rolling mills

2019-10-09T08:10:48+00:00

  • Improvement and Application of Automatic Gauge Control

    Mill Modulus Control (MMC) is one of important methods on Automatic Gauge Control (AGC) systems of strip rolling mills It would result in a slower adjusting speed of strip rolling gap to combine

  • 预计阅读时间:4 分钟
  • Application of RBFPID to MNAGC in Hot Continuous

      It is always primary object to improve gauge control accuracy in hot strip mills Limitation based on conventional PID is emerged when the controlled system is complex, nonlinear and timevariety A new control strategy based on RBFPID is introduced and has been applied in high nonlinear, timevarying hydraulic MN AGC of 1700ASP

  • Research on Mill Modulus Control of Strip Rolling AGC

    The novel GMAGC system has been applied successfully in a hot strip mill, the application results show that the thickness control precision is improved significantly, with the novel GMAGC system

  • 预计阅读时间:7 分钟
  • Shape and Gauge Control of Strip in a Cold Rolling Mill

      In cold rolling mills (and in particular in tandem rolling mill) the thickness control ie the automatic gauge control (AGC) regulation is achieved with sophisticated controllers which need to take into account that loopers are not present (as in the case of hot strip mill) and hence the regulation activity of all the stands is to be

  • Research on Mill Modulus Control of Strip Rolling AGC

      Recently, the accuracy of hot strip gauge is strictly demanded, and the strip thickness becomes the most important quality in hot strip rolling In order to improve the quality of the hot strip gage and to reduce the strip thickness deviation, the automatic gauge control (AGC) system now is widely used in modern hot strip mills Mill modulus control (MMC) is one of important methods in AGC

  • Automation and Thickness Control in Hot Strip Mill –

      Fig 1 Structure of a typical automation system for hot strip mill process Level 0 – It is the lowest level of control and includes, for example, the control loops for hydraulic capsules used to position the rolls in the rolling mills and for the main electric motors powering the mill Level 1 – It is primarily concerned with inpiece control At this level, the quality parameters such as

  • 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 structure#x2014;basic automation (Level 1) and process

  • Cited by: 3[PDF]
  • Hot Rolling Mill Hydraulic Gap Control (HGC) thickness

      P Kucsera et al Hot Rolling Mill HGC Thickness Control Improvement – 98 – Another way to determine the thermal expansion of the work roll is the modelling of the heat transfer between the work rolls and the strip This depends on the roll speed, strip thickness, the properties of the strip, roll gap, contact time and cooling parameters

  • [PDF]
  • Strip Thickness Control of Cold Rolling Mill with Roll

      The strip exits the roll bite with thickness h out at its centerline and with speed v out [6,7] In flat rolling, the strip is squeezed between two rolls so that its thickness is reduced by an amount called the draft [7]: dh h = − in out (1) where d = draft, mm by [8]: L Rh h = − (in out ) (2) The true strain experienced by the

  • 文件大小: 733KB
  • Wrapper Roll Control System of Hot Strip Mill SpringerLink

    Wrapper roll is one of the most important components in rolling coiler And it has great relation to the quality of the final products Based on the programming and optimization experience, a hot strip coiler with new coiling process, which operates with position control and pressure control is introduced

  • (PDF) 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

  • Application of RBFPID to MNAGC in Hot Continuous

      It is always primary object to improve gauge control accuracy in hot strip mills Limitation based on conventional PID is emerged when the controlled system is complex, nonlinear and timevariety A new control strategy based on RBFPID is introduced and has been applied in high nonlinear, timevarying hydraulic MN AGC of 1700ASP

  • Research on Mill Modulus Control of Strip Rolling AGC

      Recently, the accuracy of hot strip gauge is strictly demanded, and the strip thickness becomes the most important quality in hot strip rolling In order to improve the quality of the hot strip gage and to reduce the strip thickness deviation, the automatic gauge control (AGC) system now is widely used in modern hot strip mills Mill modulus control (MMC) is one of important methods in AGC

  • Improvement and application of Automatic Gauge Control

    Mill Modulus Control (MMC) is one of important methods on Automatic Gauge Control (AGC) systems of strip rolling mills It would result in a slower adjusting speed of strip rolling gap to combine the former AGC system and MMC simply without changing the compensating coefficient of rolling efficiency, which was deduced in detail by some inferential reasoning formulas

  • [PDF]
  • Hot Rolling Mill Hydraulic Gap Control (HGC) thickness

      P Kucsera et al Hot Rolling Mill HGC Thickness Control Improvement – 98 – Another way to determine the thermal expansion of the work roll is the modelling of the heat transfer between the work rolls and the strip This depends on the roll speed, strip thickness, the properties of the strip, roll gap, contact time and cooling parameters

  • [PDF]
  • Strip Thickness Control of Cold Rolling Mill with Roll

      The strip exits the roll bite with thickness h out at its centerline and with speed v out [6,7] In flat rolling, the strip is squeezed between two rolls so that its thickness is reduced by an amount called the draft [7]: dh h = − in out (1) where d = draft, mm by [8]: L Rh h = − (in out ) (2) The true strain experienced by the

  • An Application of the Model Based Predictive Control in a

      A rolled strip in a hot rolling mill can be a final product or further rolled through cold rolling mills in order to produce a thinner coil The quality defects generated in a hot rolling mill seriously affect the quality of the following process Therefore, quality control in a hot strip mill is very important

  • [PDF]
  • The Hot Rolling Process California Steel

    The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semifinished 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

  • [PDF]
  • Principles and Applications of Metal Rolling

      327 Cold rolling of sheet, strip and foil 146 4 Rolling Equipment and Systems 168 41 Mill Stand Components and Mechanisms 168 411 Rolling mill rolls 169 412 Roll neck bearings 186 413 Roll chocks 197 414 Mill housings 201 415 Mechanisms for roll adjustment and roll balance 205 416 Roll change device 217

  • Wrapper Roll Control System of Hot Strip Mill SpringerLink

    Wrapper roll is one of the most important components in rolling coiler And it has great relation to the quality of the final products Based on the programming and optimization experience, a hot strip coiler with new coiling process, which operates with position control and pressure control is introduced

  • Application of RBFPID to MNAGC in Hot Continuous

      It is always primary object to improve gauge control accuracy in hot strip mills Limitation based on conventional PID is emerged when the controlled system is complex, nonlinear and timevariety A new control strategy based on RBFPID is introduced and has been applied in high nonlinear, timevarying hydraulic MN AGC of 1700ASP

  • [PDF]
  • Research on Intelligence of AGC System in Hot Strip Mill

    [3] Z X Li and X H Liu, Research of the Gauge Control System for 2160 Hot Strip Mill at Shrugging, Metallurgical Industry Automation, 2010, 100102 [4] X C Zhang, Development and Application of AGC Control System for 1500mm Hot Continuous Rolling in Lagging, Information Technology, 2015, 8083 [5] F

  • Improvement and application of Automatic Gauge Control

    Mill Modulus Control (MMC) is one of important methods on Automatic Gauge Control (AGC) systems of strip rolling mills It would result in a slower adjusting speed of strip rolling gap to combine the former AGC system and MMC simply without changing the compensating coefficient of rolling efficiency, which was deduced in detail by some inferential reasoning formulas

  • Table 1 from Strip Thickness Control of Cold Rolling Mill

    In rolling mill, the accuracy and quality of the strip exit thickness are very important factors To realize high accuracy in the strip exit thickness, the Automatic Gauge Control (AGC) system is used Because of roll eccentricity in backup rolls, the exit thickness deviates periodically

  • [PDF]
  • GENERAL ASPECTS OF ROLL COOLING FOR HOT

      The socalled selective roll cooling is applied mainly for cold rolling mills to control the asymmetrical flatness deviations the strip width There are furthermore across applications for special castrolling mills for narrowgauge hot strip production Normally, two rows of nozzles are used in one header The row of nozzles directed to

  • [PDF]
  • Hot Rolling Mill Hydraulic Gap Control (HGC) thickness

      P Kucsera et al Hot Rolling Mill HGC Thickness Control Improvement – 98 – Another way to determine the thermal expansion of the work roll is the modelling of the heat transfer between the work rolls and the strip This depends on the roll speed, strip thickness, the properties of the strip, roll gap, contact time and cooling parameters

  • Highest performing Hot Strip Mills Primetals Technologies

    HOT STRIP MILL — HIGHEST PERFORMANCE FOR NEW AND EXISTING STEEL MILLS The demand for hot rolled strip is growing in multiple ways To remain competitive, new and existing mills must meet this challenge in the best possible way The

  • [PDF]
  • 1 Hot rolling and rolling defects: 11 Front and back

      Hot rolling and rolling defects: force is to apply a small tensile force on the strip Application of tensile force longitudinally 17 Rolling mill control: Production of continuous sheets and strips is one of the attractive features of modern rolling mills However, control of sheet thickness and crosssection is

  • [PDF]
  • Principles and Applications of Metal Rolling

      327 Cold rolling of sheet, strip and foil 146 4 Rolling Equipment and Systems 168 41 Mill Stand Components and Mechanisms 168 411 Rolling mill rolls 169 412 Roll neck bearings 186 413 Roll chocks 197 414 Mill housings 201 415 Mechanisms for roll adjustment and roll balance 205 416 Roll change device 217

  • Wrapper Roll Control System of Hot Strip Mill SpringerLink

    Wrapper roll is one of the most important components in rolling coiler And it has great relation to the quality of the final products Based on the programming and optimization experience, a hot strip coiler with new coiling process, which operates with position control and pressure control is introduced