hot rolling mill roll eccentricity - dystrybutorydowody.pl

how to control eccentricity problem in hot rolling mill. · an off-line eccentricity identification method which is performed when there is no plate rolling through the mill and with the top work roll and the bottom work roll in tight contact, said off-line eccentricity identification method determining the eccentricity values of N first points which equally divide a …

how to control eccentricity problem in hot rolling mill

Upgrading of Hot Finishing Mill to 4. an overview of the hot finisher mill after the upgrade and describes the new control technology and hot rolling pro-cess control system that were introduced 2 GENERAL DESCRIPTION The hot rolling mill of the Fukui Works went into service in May 1983 as a world-class facility equipped with large rolling stands capable of producing wide...

roll eccentricity control

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hot rolling mill roll eccentricity

how to ntrol eccentricity problem in hot rolling mill. how to ntrol eccentricity problem in hot rolling mill. P kucsera et al hot rolling mill hgc thickness control improvem ent 102 where v is mill speed and l is the distance bet ween the wo rk ro lls and the x ray. If you want to learn about our products please call or write mail consultation.

Roll Eccentricity Control for Strip Rolling Mills - ScienceDirect

Awtm/ia Abstract: An in-depth review of the roll eccentricity control design problem is prov­ided which encompasses a number of recent, novel, design contributions and includes experimental results from two separate steel, tandem cold rolling mill installations. A unifying approach to eccentricity control ~nables the diverse range of published ...

Methods To Control Eccentricity In Forged Rolls

hot rolling mill roll eccentricity. Roll Eccentricity Control for Strip Rolling Mills. An in-depth review of the roll eccentricity control design problem is provided which encompasses a number of recent, novel, design contributions and includes experimental results from two separate steel, tandem cold rolling mill installations.

hot rolling mill roll eccentricity - villagoofy.nl

methods to control eccentricity in forged rolls. hot rolling mill roll eccentricity - BINQ Mining Dec 20, 2012 Roll Eccentricity Control Using Identified Eccentricity of Top, roll eccentricity, back up roll, hot strip mill, repetitive, Roll eccentricity is a periodic disturbance caused by a structure of back up rolls in rolling mills,...

hot rolling mill roll eccentricity - Ezio

US3543549A Rolling mill control for compensating for the. Roll eccentricity correction system and method US4038848A en 19740531 19770802 Hitachi Ltd Method and apparatus for controlling eccentricity of rolls in rolling mill DE2605183A1 en 19750212 19760826 Hitachi Ltd Means for controlling the thickness of the rolling in a rolling mill. Read ...

How to control eccentricity problem in hot rolling mill …

The rolling process is shown in Fig. 2.1: Rolling is done both hot and cold. It is accomplishes in rolling mills. A rolling mill is a complex machine having two or more working rollers, supporting rollers, roll stands, drive motor, reducing gear, flywheel, coupling gear etc. Rollers may be plain or grooved depends upon the shape of rolled product

rolling mill roll eccentricity control

Study on Roller Eccentricity Compensation in a Cold Mill. With the increase request of strip quality, the roller eccentricity has become the important factor of influencing product quality On the practical model of Cold-rolling Mill of 300, this paper establishes eccentricity compensation control practice of Cold-rolling Mill of 300 which applies wavelet transform method Based on …

how to control eccentricity problem in hot rolling mill …

basic rollimg mills – Grinding Mill China. 187 MTW Milling Machine 187 SCM Ultrafine Mill Complete Hot Rolling Mills Design Housingless Vertical Mill Stand Modelling and control of …

Roll Eccentricity Control Using Identified Eccentricity of …

Roll eccentricity is a periodic disturbance caused by a structure of back up rolls in rolling mills, and it affects product thickness accuracy. It cannot be measured directly by sensors, so it should be identified by measured thickness or measured roll force. When there is a large difference of diameters between top and bottom back up roll, the performance of roll eccentricity control …

Strip Thickness Control of Cold Rolling Mill with Roll …

consistent with data reported from operating mills which . Figure 3. Effects of roll eccentricity on output strip thick- ness. usually includes its effects. The eccentricity components remaining in the mill exit thickness after compensation. In the model, roll eccentricity modifies Equation (5) as [12]: out. F hS e M =++ (7) where. e is the ...

how to control eccentricity problem in hot rolling mill

Eccentricity in Rolling Mills (Automated Gauge Control) system, of a hot rolling mill is analyzed and different methods are described to improve its performance. Tandem Cold Metal Rolling The mill stretch compensation and other disturbances during the rolling process are compensated and a rolling speed dependent, adaptive PI controller is ...

how to control eccentricity problem in hot rolling mill

Roll Eccentricity Control for Strip Rolling Mills. 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 …

how to control eccentricity problem in hot rolling mill

Method and apparatus for the detection and correction. Automatic Gauge Control of Plate Rolling Mill, the production of a hot-rolled plate calls for high accuracy in, Eccentricity Comp Work Roll Bending Mill ModulusAnother control problem, The diagram below shows the layout of a rolling mill,, Solution of eccentricity problem:Jan 13, Apparatus for the detection, measurement and …

how to control eccentricity problem in hot rolling mill

hot rolling mill roll eccentricity Cold Rolling Mill Thickness Control Using The Cascade-Correlation, Backup Roll Thickness gauge, Application of Dynamic Deadband Eccentricity Filter in GM-AGC, The problem of roll eccentricity has become one of important factors to affect the quality of strips as downstream industries require ....

How to control eccentricity problem in hot rolling mill

Roll Eccentricity Control for Strip Rolling Mills A design of automation systems for the competi tive summary of the background to the control ofproduction of metal strip products thickness in rolling mills is described in an The thickness control problem is further earlier paper by Edwards (1987) exacerbated by the fact that tolerances are For a single stand mill, control is commonly

how to control eccentricity problem in hot rolling mill

Active compensation of roll eccentricity in rolling mills. This paper is concerned with the active compensation of the roll eccentricity induced thickness of hot and cold rolling mills gauge control in

Position Control and Active Eccentricity Compensation in …

DOI: 10.1524/auto.1999.47.8.342 Corpus ID: 111540017; Position Control and Active Eccentricity Compensation in Rolling Mills @inproceedings{Kugi1999PositionCA, title={Position Control and Active Eccentricity Compensation in Rolling Mills}, author={Andreas Kugi and Kurt Schlacher and Georg Keintzel}, year={1999} }

how to control eccentricity problem in hot rolling mill

Back-Up-Roll Eccentricity Gauge Variations in Cold ... based control scheme for this rolling mill problem. ... eccentricity control for strip rolling mills: ... >>GET MORE Strip Thickness Control of Cold Rolling Mill with Roll ...

Rolling Mill Roll Eccentricity Control - hsdc.pl

Rolling Mill Tutorial - Control System Design. Rolling Mill Tutorial. Before continuing, make sure you have read Chapter 5. System Description. Another control problem (besides the continuous caster) arising in the steel industry is the control of the exit steel thickness in a rolling mill. The diagram below shows the layout of a rolling mill ...

how to control eccentricity problem in hot rolling mill

LM Vertical Mill integrates crushing, drying, grinding, classifying and conveying together, and it is specialized in processing non-metallic minerals, pulverized coal and slag. Its coverage area is reduced by 50% compared with ball mill, and the energy consumption is …

how to control eccentricity problem in hot rolling mill

Unwind/rewind eccentricity control for rolling mills ... 6/3/1990 The cause of the problem is fourfold, i.e., cyclic disturbances are caused by (1) dimensional abnormalities (ovalness and eccentricity) of the coils, (2) a resonance condition resulting from a mass/spring system exhibited by the coil being connected to the mill via the strip of material being unwound or rewound, …

how to control eccentricity problem in hot rolling mill

Roll Eccentricity Control for Strip Rolling Mills . Jul 01, 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 …

How To Control Eccentricity Problem In Hot Rolling Mill

How To Control Eccentricity Problem In Hot Rolling Mill. and roll eccentricity problem is the ii the structure of four high 4 h rolling mill so as the strip gauge control system is presented hot rolling and 5 mill stands in cold rolling Learn More Hot Rolling And Rolling . Get Price; Roll eccentricity compensation based on anti aliasing

How To Control Eccentricity Problem In Hot Rolling Mill

an overview of the hot finisher mill after the upgrade, and describes the new control technology and hot rolling pro-cess control system that were introduced. 2. GENERAL DESCRIPTION The hot rolling mill of the Fukui Works went into service in May, 1983 as a world-class facility, equipped with large rolling stands capable of producing wide ...

Rolling Mill Roll Eccentricity Control

01/07/1987 An in-depth review of the roll eccentricity control design problem is provided which enco. Email:[email protected] Telephone:+86 371 67999188. HOME; PRODUCTS; ABOUT US; ... how to control eccentricity problem in hot rolling mill,Roll Eccentricity Control for Strip Rolling Mills. SIMULATION RESULTS In eccentricity control ...

hot rolling mill roll eccentricity - uniekebruidstaarten.nl

hot rolling mill roll eccentricity . Upgrading of Hot Finishing Mill to Stands, and . hot-rolled coils, thereby effecting pass cutting in the cold-rolling process. 3) To realize a high-productivity hot-rolling mill by replac-ing the computer control system with one of the latest design that achieved a significant degree of automa-tion. Get price

how to control eccentricity problem in hot rolling mill

an overview of the hot finisher mill after the upgrade, and describes the new control technology and hot rolling pro-cess control system that were introduced. 2. GENERAL DESCRIPTION The hot rolling mill of the Fukui Works went into service in May, 1983 as a world-class facility, equipped with large rolling stands capable of producing wide ...

how to control eccentricity problem in hot rolling mill

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

how to control eccentricity problem in hot rolling mill

9th INTERNATIONAL ROLLING MILL ACADEMY isc ltd com. 9th INTERNATIONAL ROLLING MILL ACADEMY 5 9 November 2007 Glasgow Scotland The lectures will be given by leading international experts in hot and cold mill control systems As well as providing an in depth understanding of the theory they will also explain the practical issues of implementing rolling …

How To Control Eccentricity Problem In Hot Rolling Mill

Quality Control System For A Hot-rolled Metal Surface. system that secures 100 % control of the surface of rolled metal (of the upper and lower side) detects automatically and classifies the defects полосы in the real time mode was mounted in the domestic practice in the first time in 2003 on hot rolling mill 2000 jsc «novolipetsk iron &,the complete technology book …

how to control eccentricity problem in hot rolling mill …

ep0435595a2 - thickness control system for a rolling mill . A rolling mill (32) has a hydraulic roll-gap control system (66) for setting the roll gap between two work rolls (3, 4) of the rolling mill and a mill modulus control unit (54) for supplying a correction signal (C p ) to the hydraulic roll-gap control system based on the difference between a reference rolling pressure and the actual ...

Looper and tension control in hot rolling mills: A survey

Looper and tension control, shown in Fig. 2, is important in hot strip mills because they affect both the dimensional quality and the mass flow of a strip. The high strip tension between stands induces width shrinkage, thickness reduction and moreover can produce an edge wave on a strip. However, it does make the mass flow more stable and hence ...