Hot Rolling Mill Roll Eccentricity

[title]

hot rolling mill roll eccentricity

15061996· The roll eccentricity in a rolling mill may define the limit of achievable thickness tolerances and thus is subject of interest for the automation equipment in hot rolling mills as well as in cold rolling mills Today's demand on thickness tolerances less than 08% require efficient methods for roll eccentricity identification and compensation This paper should present a solution for,Roll Eccentricity Control for Strip Rolling Mills,,01/07/1987· SIMULATION RESULTS In eccentricity control, the following practical considerations apply to production rolling mills and thus should be cons idered in the des ign of relevant simulation studies: • the incoming feed can introduce periodic disturbances in the form of hot rolled thickness disturbances or uncoiler induced tension fluctuations, • apparently small levels of hysteresis can produce significant thickness errors, • eccentricityActive compensation of roll eccentricity in rolling mills,,This paper is concerned with the active compensation of the roll eccentricity-induced periodic disturbances in the strip exit thickness of hot and cold rolling mills. The roll eccentricity may be caused by different reasons, like e.g. inexact roll grinding or nonuniform thermal expansion of the rolls. The increasing demands on the thickness tolerances require new methods for the active,

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[title]

Neural network for identification of roll eccentricity in,

15/06/1996· The roll eccentricity in a rolling mill may define the limit of achievable thickness tolerances and thus is subject of interest for the automation equipment in hot rolling mills as well as in cold rolling mills. Today's demand on thickness tolerances less than 0.8% require efficient methods for roll eccentricity identification and compensation. This paper should present a solution for,How To Control Eccentricity Problem In Hot Rolling Mill,Hot rolling mill roll eccentricity. HOT ROLLING PRACTICE An Attempted Recollection. How to control eccentricity problem in hot rolling mill roll eccentricity control with the force feed. The diagram below shows the layout of a rolling mill, with thick steel going in one side, and thin . Variation in the rolling load may however be due to factors other than variations in the gauge of the,Active compensation of roll eccentricity in rolling mills,,This paper is concerned with the active compensation of the roll eccentricity-induced periodic disturbances in the strip exit thickness of hot and cold rolling mills. The roll eccentricity may be caused by different reasons, like e.g. inexact roll grinding or nonuniform thermal expansion of the rolls. The increasing demands on the thickness tolerances require new methods for the active,

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[title]

Neural network for identification of roll eccentricity in,

15/06/1996· The roll eccentricity in a rolling mill may define the limit of achievable thickness tolerances and thus is subject of interest for the automation equipment in hot rolling mills as well as in cold rolling mills. Today's demand on thickness tolerances less than 0.8% require efficient methods for roll eccentricity identification and compensation. This paper should present a solution for identifying rollHow To Control Eccentricity Problem In Hot Rolling Mill,Hot rolling mill roll eccentricity. HOT ROLLING PRACTICE An Attempted Recollection. How to control eccentricity problem in hot rolling mill roll eccentricity control with the force feed. The diagram below shows the layout of a rolling mill, with thick steel going in one side, and thin . Variation in the rolling load may however be due to factors other than variations in the gauge of the,Online Monitoring System Design for Roll Eccentricity,roll bearings in mill stand can be defined as roll eccen tricities, which will not o nly result in the periodic disturbances on strip thickness, but also can cause the degradation on contr ol

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US3543549A - Rolling mill control for compensating for

Nor can it always be completely defined by metrology for if it has its source in a structural defect in the roll this would only appear when the force response of the rotating roll body was...Hot Rolling Mill Hydraulic Gap Control (HGC) thickness,,Control; Mill stretch compensation; Roll eccentricity compensation; Thickness control; Adaptive; Predictive control 1 Introduction Nowadays, the competitive nature of different sectors (industry, agriculture,) depends on technological improvements [1]. There is a growing demand for high accuracy in thickness control in metal rolling area. If the required accuracy of hot rolling mills can,Upgrading of Hot Finishing Mill to 4-Stands, and,,Roll eccentricity elimination control PC1: Rougher master, table master PC2: Rougher sub-machine control master PC3: Machines around rougher mill control master, Automatic gauge control PC4: Slab cooling temperature control Figure 2 Configuration of computer control system for hot strip rolling mill Roll thermal crown calculation Finisher set-up calculation/learning ABS: Absolute AGC ASC,

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[title]

Method of measuring and compensating roll eccentricity

A rolled plate with uniform thickness and flatness from a rolling mill is a goal constantly pursued by many steel plate manufacturers. Among the various factors which affect the thickness and flatness of the rolling plate, eccentricity of the backup roll is most decisive. Many systems and methods have been proposed and devised therefore for compensating the roll eccentricities to minimize the thickness variations ofhot rolling mill roll eccentricity - pochiraju.co.in,Feb 16, 1999,The roll eccentricity in a rolling mill may define the limit of,thus is subject of interest for the automation equipment in hot rolling mills as well as... Get Price. Roll Eccentricity Control Using Identified Eccentricity of Top/Bottom,Roll Eccentricity Control Using Identified Eccentricity of Top/Bottom Rolls by Roll,roll eccentricity, back up roll, hot strip,GENERAL ASPECTS OF ROLL COOLING FOR HOT & COLD ROLLING,rolling mill, dedicated roll cooling systems are required to fulfill the required functions. Examples are suitable roll cooling and lubricationsystems to fully utilize the advantages of HSS rolls in hot strip mills, and selective roll cooling systems as a method to control the flatness of the strip in cold rolling mills. Cooling and lubricating is furthermore essential for the plateout for,

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[title]

Active compensation of roll eccentricity in rolling mills,

Abstract: This paper is concerned with the active compensation of the roll eccentricity-induced periodic disturbances in the strip exit thickness of hot and cold rolling mills. The roll eccentricity may be caused by different reasons, like e.g. inexact roll grinding or nonuniform thermal expansion of the rolls. The increasing demands on the thickness tolerances require new methods for the active compensation ofNeural network for identification of roll eccentricity in,,15/06/1996· The roll eccentricity in a rolling mill may define the limit of achievable thickness tolerances and thus is subject of interest for the automation equipment in hot rolling mills as well as in cold rolling mills. Today's demand on thickness tolerances less than 0.8% require efficient methods for roll eccentricity identification and compensation. This paper should present a solution for identifying rollActive compensation of roll eccentricity in rolling mills,,Simulation results for a cold rolling mill and measurement results for a hot strip mill demonstrate the feasibility and the excellent performance of the design. This paper is concerned with the active compensation of the roll eccentricity-induced periodic disturbances in the strip exit thickness of hot and cold rolling mills. The roll eccentricity may be caused by different reasons, like e.g,

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[title]

US3543549A - Rolling mill control for compensating for

All rolls for rolling mills are eccentric to some degree i.e. however carefully a roll is ground, the roll barrel is eccentric with respect to the roll necks by which the roll is rotatably...hot rolling mill roll eccentricity - BINQ Mining,20/12/2012· et al. Roll eccentricity control for strip rolling mills (1987): This paper describes a controller design for a hot rolling mill.The main purpose of the algorithm is to improve the control of the cross-width thickness prole ofMethod of measuring and compensating roll eccentricity,A rolled plate with uniform thickness and flatness from a rolling mill is a goal constantly pursued by many steel plate manufacturers. Among the various factors which affect the thickness and flatness of the rolling plate, eccentricity of the backup roll is most decisive. Many systems and methods have been proposed and devised therefore for compensating the roll eccentricities to minimize the thickness variations of

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[title]

Upgrading of Hot Finishing Mill to 4-Stands, and,

Roll eccentricity elimination control PC1: Rougher master, table master PC2: Rougher sub-machine control master PC3: Machines around rougher mill control master, Automatic gauge control PC4: Slab cooling temperature control Figure 2 Configuration of computer control system for hot strip rolling mill Roll thermal crown calculation Finisher set-up calculation/learning ABS: Absolute AGC ASC,hot rolling mill roll eccentricity - pochiraju.co.in,Feb 16, 1999,The roll eccentricity in a rolling mill may define the limit of,thus is subject of interest for the automation equipment in hot rolling mills as well as... Get Price. Roll Eccentricity Control Using Identified Eccentricity of Top/Bottom,Roll Eccentricity Control Using Identified Eccentricity of Top/Bottom Rolls by Roll,roll eccentricity, back up roll, hot strip,GENERAL ASPECTS OF ROLL COOLING FOR HOT & COLD ROLLING,rolling mill, dedicated roll cooling systems are required to fulfill the required functions. Examples are suitable roll cooling and lubricationsystems to fully utilize the advantages of HSS rolls in hot strip mills, and selective roll cooling systems as a method to control the flatness of the strip in cold rolling mills. Cooling and lubricating is furthermore essential for the plateout for,

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[title]

Rolling Technology and Theory for the Last 100 Years: The,

When the rolling rolls with eccentricity rotate and swing, by which the thickness at the exit of roll gap changes such as the roll gap is controlled. If mill modulus is small, the change of roll gap seems really small, which is caused by swinging of the roll during rotating. Therefore, it is found that small mill modulus is effective for the change of roll gap caused by inside factors of,,,

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