rolling mills control
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rolling mills control

Rolling mill control: architecture and applications IET ...

1998-3-4  Considers some of the distributed aspects of the control of modern metal rolling mills. Such mills have a range of ever more ambitious targets, for example product quality, yield, metallurgy and throughput. These aims are supported by high levels of mill sophistication, in terms of plant equipment, instrumentation, actuators and control hardware. In spite of this sophistication, automation has ...

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ROLLING MILL CONTROL - WEAN UNITED INC,US

Rolling mill controls generally are concerned with effecting a change in the roll setting as a function of a change in the rolling pressure. Prior patents that, at least in part, envision such a control are U. S. Pat. No. 2,726,541 that issued to R. B. Sims on Dec. 13, 1955 and No. 3,496,743 that issued to M. D. Stone on Feb. 24, 1970.

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Advanced Control for Hot Rolling Mills SpringerLink

Summary. Hot strip rolling mills are characterised by a process which has many interactions, is distributed with dominant transport delays and has a lack of measurements due to the severe environment. There is ever increasing market demand for better product quality of the steel strip hence the requirement for higher performance controllers.

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Tandem Cold Metal Rolling Mill Control SpringerLink

The tandem rolling of cold metal strip is a large, highly complex nonlinear multivariable process the control of which poses a significant engineering challenge. Existing controllers have proven to be susceptible to disturbances and uncertainties in process variables and attempts to increase robustness to these phenomena have had their own ...

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Looper and tension control in hot rolling mills: A survey ...

2007-7-1  This paper considers some of the control issues in hot rolling mills. Hence to set the context, first we give a brief description of a typical process. The role of a hot strip mill process is to roll the slabs produced in a continuous casting process and produce strips of thickness 0.8–20 mm. Fig. 1 shows

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Advanced Process and Quality Control in Hot Rolling

2006-9-30  3.1 Key Feature of Process Control: Detection of Periodic Defects Rolls and rollers are the most heavily used parts of a rolling mill. Due to wear from contacting hot material with great force, their lifetime is limited. Although rolls are refurbished in the roll shop regularly, they occasionally crack before the end of the usual production cycle.

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Shape control systems - ANDRITZ

Shape control systems supplied by ANDRITZ Sundwig are used in most rolling mill types in the steel, stainless steel, and nonferrous metal industries. Shape control systems are also used in tension levelers for controlling the strip shape.

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

2013-11-12  description of the cold rolling process is presented. In Section 3, a mathematical model has been driven for sin-gle-stand cold rolling mill. In Section 4, architecture and learning algorithm Fuzzy Neural Networkof have been presented. In Section 5, thickness control with roll ec-centricity compensation has been proposed. In Section 6,

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FEATURING ROLLING AND PROCESSING

2018-3-13  Referred to as “ultra-thin rolling control,” the system is essentially an adapted control concept that has been successfully applied many times in tandem cold mills. When rolling below a certain strip thickness, the control mode is switched from speed control

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The development of the theory of metal rolling and its ...

2017-8-9  mill and control must be based. Rolling theory can be divided into two broad and general cate- gories, that which applies to hot - rolling and that which applies to cold rolling. In hot - rolling the yield stress characteristic of the metal is strain -rate dependent and frictional force between the roll and stock is

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8.36 Rolling Mill Controls - Free

2013-5-18  2116 8.36 Rolling Mill Controls K. J. JENTZEN (1985, 1995) B. G. LIPTÁK (2005) Types of Drives: Eddy-current clutches, DC static converters, AC variable frequency Control Techniques: Analog, digital, programmable Partial List of Suppliers: Allen-Bradley; Avtek Systems; Eaton; General Electric; Louis Allis; Parametrics Div. of Zero-max Industries;

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ROLLING MILL CONTROL - WEAN UNITED INC,US

Rolling mill controls generally are concerned with effecting a change in the roll setting as a function of a change in the rolling pressure. Prior patents that, at least in part, envision such a control are U. S. Pat. No. 2,726,541 that issued to R. B. Sims on Dec. 13, 1955 and No. 3,496,743 that issued to M. D. Stone on Feb. 24, 1970.

Read More
Advanced Control for Hot Rolling Mills SpringerLink

Summary. Hot strip rolling mills are characterised by a process which has many interactions, is distributed with dominant transport delays and has a lack of measurements due to the severe environment. There is ever increasing market demand for better product quality of the steel strip hence the requirement for higher performance controllers.

Read More
Rolling mills First Control Systems AB

FirstOpNet DCS system for Cold Rolling Mills with adaptive control. The DCS control system designed by First Control is based on modern control technology with self-tuning control to achieve maximal production performance. Experience from several installations shows that the self-tuning regulator reduces the thickness deviations by 50-75% ...

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Observer-based Multivariable Control of Rolling Mills ...

1998-9-1  Observer-based multi variable flatness control of a cold rolling mill. Control Eng. Practice, 1-6,917-925. Hoshino, I., Y. Okamura and H. Kimura (1996). Observer-based multi variable tension control of aluminum hot rolling mills. Proc. tM 35th IEEE CDC. Kimura, H. (1985). Observer-based regulator synthesis.

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Tandem Cold Metal Rolling Mill Control SpringerLink

The tandem rolling of cold metal strip is a large, highly complex nonlinear multivariable process the control of which poses a significant engineering challenge. Existing controllers have proven to be susceptible to disturbances and uncertainties in process variables and attempts to increase robustness to these phenomena have had their own ...

Read More
Thickness control strategies of plate rolling mill

2021-10-28  Hot strip rolling production is a high-speed process which requires high-speed control and communication system, but because of the long distance between the delivery stand of the finishing mill ...

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Advanced Process and Quality Control in Hot Rolling

2007-11-2  Advanced Process and Quality Control in Hot Rolling Mills Using Eddy Current Inspection Autor: SVEN KLING Speaker: Markus WITTE PRÜFTECHNIK NDT GmbH Ismaning, Germany +49 89 99 616 152 [email protected] Abstract Eddy current testing is a common method for the surface inspection of semi-finished products.

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

2013-11-12  description of the cold rolling process is presented. In Section 3, a mathematical model has been driven for sin-gle-stand cold rolling mill. In Section 4, architecture and learning algorithm Fuzzy Neural Networkof have been presented. In Section 5, thickness control with roll ec-centricity compensation has been proposed. In Section 6,

Read More
FEATURING ROLLING AND PROCESSING

2018-3-13  Referred to as “ultra-thin rolling control,” the system is essentially an adapted control concept that has been successfully applied many times in tandem cold mills. When rolling below a certain strip thickness, the control mode is switched from speed control to roll-gap control while the strip tension is kept constant.

Read More
8.36 Rolling Mill Controls - Free

2013-5-18  2116 8.36 Rolling Mill Controls K. J. JENTZEN (1985, 1995) B. G. LIPTÁK (2005) Types of Drives: Eddy-current clutches, DC static converters, AC variable frequency Control Techniques: Analog, digital, programmable Partial List of Suppliers: Allen-Bradley; Avtek Systems; Eaton; General Electric; Louis Allis; Parametrics Div. of Zero-max Industries; Reliance Electric; Wer Industrial

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DIGITAL OPTIMAL CONTROL OF MULTI-STAND ROLLING

2014-2-22  rolling mills, the optimal control problem is defined. In the design procedure, time delays in thickness measurment and control input are taken into account. The proposed strategy significantly improves the results of previous investigations from practical point of

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Tandem Cold Metal Rolling Mill Control SpringerLink

The tandem rolling of cold metal strip is a large, highly complex nonlinear multivariable process the control of which poses a significant engineering challenge. Existing controllers have proven to be susceptible to disturbances and uncertainties in process variables and attempts to increase robustness to these phenomena have had their own ...

Read More
Observer-based Multivariable Control of Rolling Mills ...

1998-9-1  Observer-based multi variable flatness control of a cold rolling mill. Control Eng. Practice, 1-6,917-925. Hoshino, I., Y. Okamura and H. Kimura (1996). Observer-based multi variable tension control of aluminum hot rolling mills. Proc. tM 35th IEEE CDC.

Read More
Rolling mills First Control Systems AB

FirstOpNet DCS system for Cold Rolling Mills with adaptive control. The DCS control system designed by First Control is based on modern control technology with self-tuning control to achieve maximal production performance. Experience from several installations shows that the self-tuning regulator reduces the thickness deviations by 50-75% ...

Read More
Thickness control strategies of plate rolling mill

2021-10-28  Hot strip rolling production is a high-speed process which requires high-speed control and communication system, but because of the long distance between the delivery stand of the finishing mill ...

Read More
[PDF] Hot Rolling Mill Hydraulic Gap Control ( HGC ...

2015-6-6  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.

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Looper and tension control in hot rolling mills: A survey ...

2007-7-1  This paper considers some of the control issues in hot rolling mills. Hence to set the context, first we give a brief description of a typical process. The role of a hot strip mill process is to roll the slabs produced in a continuous casting process and produce strips of thickness 0.8–20 mm. Fig. 1 shows

Read More
Rebar Rolling Mills Control Cooling Method after Rolling

2019-7-12  The effect of the rebar rolling mills cooling after rolling can be divided into two categories according to the rebar before rolling, quick cold deformation austenite recrystallization state:. One is the deformation of austenite is fully recrystallization,

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Advanced Process and Quality Control in Hot Rolling

2007-11-2  Advanced Process and Quality Control in Hot Rolling Mills Using Eddy Current Inspection Autor: SVEN KLING Speaker: Markus WITTE PRÜFTECHNIK NDT GmbH Ismaning, Germany +49 89 99 616 152 [email protected] Abstract Eddy current testing is a common method for the surface inspection of semi-finished products.

Read More
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