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backup roll contour of a stcrown tandem cold rolling mill

Anew FSR (flexible shapebackuproll) was developed and applied in 1700 mmtandemcoldrollingmills.Alot of good actual effects of FSR, such as evident improvement in profile and flatness of strips, non-occurring edge spalling, wear uniform, and remarkable decrease inrollconsumption were validated by long-term industrial applications.

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BackuprollcontourofaSmartCrowntandemcoldrollingmill
BackuprollcontourofaSmartCrowntandemcoldrollingmill

Enhancing the self-maintenance of thebackuprolland the workrollAfter the FSRbackuprollis used, the states ofrollcontact androllwear are improved, and thecontourofG.H. Yang et aL,BackuprollcontourofaSmartCrowntandemcoldrollingmill361 thebackuprolland the workrollin good self-maintenance is made, and the consumption ...

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Design and Application of an OptimumBackupRollContour
Design and Application of an OptimumBackupRollContour

Design and Application of an OptimumBackupRollContourConfigured with CVC WorkRollin Hot StripMill... many modern hot andcoldrollingmillsare equipped with "continuously variable crown ...

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Backuprollcontourfor edge drop control technology in
Backuprollcontourfor edge drop control technology in

Based on the fact that thebackuprollfor 2250 CVCtandemmillin hotrollinghas serious and non-uniform wear, and the edge spalling often happens, a newbackuprollcontournamed CVR (CVC-VCR ...

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Coupled Pickling Line &TandemColdMill| Primetals
Coupled Pickling Line &TandemColdMill| Primetals

COUPLED PICKLING LINE &TANDEMCOLDMILLHigh-capacity production of high-quality products For a wide range of products, the required strip thickness, flatness and surface quality can be achieved more economically by linking the pickling andcold-rollingprocesses.

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BackuprollcontourofaSmartCrowntandemcoldrollingmill
BackuprollcontourofaSmartCrowntandemcoldrollingmill

BackuprollcontourofaSmartCrowntandemcoldrollingmillArticle in Journal of University of Science and Technology Beijing Mineral Metallurgy Material 15(3):357-361 · June 2008 with 52 Reads

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Analysis of Chatter inTandemColdRollingMills
Analysis of Chatter inTandemColdRollingMills

backuprollsand torsion vibration of the drive system are the examples.1,2) The most likely instability caused intan-demcoldrollingmillsis due to vertical oscillations ofrolls, and the typical frequency of chatter ranges from 150 to 250Hz. Also, it has been recognised to have close relation with friction conditions inrollbites.

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Shape control with varying contactbackuprollsontandem
Shape control with varying contactbackuprollsontandem

Request PDF | Shape control with varying contactbackuprollsontandemcoldrollingmill| The configuration of conventionalbackupand workrollsfor revamped 1700tandemcoldrollingmillat ...

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Intermediaterollcontourof6-hi UCMcoldrollingmill
Intermediaterollcontourof6-hi UCMcoldrollingmill

[Show full abstract] then a VCR (varying contactbackuproll) was designed for therollingconditions of PL-TCM (pickling line combined withtandemcoldrollingmill) and has been applied to 1700 ...

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Edge Drop Control Technology of 4-HiTandemColdRolling
Edge Drop Control Technology of 4-HiTandemColdRolling

For gaining strip edge drop controllability and increasingrollgrinding precision, the edge drop control workroll(EDW) was developed and designed in 1700 mmtandemcoldrollingmill. During therollingtrial, therollconfiguration between EDW and conventionalbackuprolldidn't match well because of the large fluctuation of strip edge drop, the lower shape control ability and non-uniform ...

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RollCamber Design forColdRollingMills- ScienceDirect
RollCamber Design forColdRollingMills- ScienceDirect

Plant trials confirmed the validity of the predictions in widecoldrollingand temperrollingmills. On stands withoutrollbending facilities a traditionalroll-preheating technique is recommended for imparting a thermal camber to the work-rollsprior to their insertion in themill. Preliminary trials are briefly described.

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PDFAISTech Paper Form Version 8 140221 - Steel Plantech
PDFAISTech Paper Form Version 8 140221 - Steel Plantech

Those two separate functions make strip centering stably and accurately at the entry side of themill. 5-standTandemColdMillMost modernTandemColdMilloffive (5) stands with all 6-highmillis provided. Positive and negativeRollBenders for WorkRollsand IntermediateRolls,RollShift Device for IntermediateRollsare provided for

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PDFColdRollingTechnology Solutions forColdRollingMills
PDFColdRollingTechnology Solutions forColdRollingMills

TANDEMCOLDROLLINGMILLSProduction capacities oftandemcoldmillsusing coil-to-coil operation are typically in the range of 600,000 to 1,000,000 t/year. Today, many of the existing batchmillsare extended and modernized to continuous mode operation, and newmillsare installed for continuous operation right from the start.

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TaperRollContourDesign for Edge Drop Control of Non
TaperRollContourDesign for Edge Drop Control of Non

The taper workrollofthe 1700 mmtandemcoldrollingmillshad some problems in the course of using, and the taperrollcontourwas ground difficultly and the difference between the designedcontourand grindingcontourwas very big, and the workrollandbackuprollhad very serious and non-uniformrollwearing and even often hadrollspalling, and above those problems affected the ...

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Aset-up model fortandemcoldrollingmills- ScienceDirect
Aset-up model fortandemcoldrollingmills- ScienceDirect

It is well known that experience is playing a vital role in the selection of operating parameters intandemcoldrollingmills. In the present work, an attempt is made to develop a set-up model fortandemcoldrollingmillto maximize the throughput.

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Integrated design ofrollcontoursfor strip edge drop and
Integrated design ofrollcontoursfor strip edge drop and

In order to solve strip edge drop and crown problem for accurate "dead flat" transverse thickness profile of electrical steel sheet in 4-hightandemcoldrollingmills,the 3D finite element model ofrollstacks and strip deformation was built incoldrollingprocess.

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PDFDesign and Optimization ofRollingMillChock
PDFDesign and Optimization ofRollingMillChock

rolling.Rollingmillconfiguration and four high stand of reversingcoldmillare shown in figure 1 and 2 respectively. Figure [1]Rollingmillconfiguration 3. Types ofRollChocks Therollchocks are broadly categorized into 4 types which is shown in fig 3TopBackupRollChock 1. Top WorkRollChock 2. Bottom WorkRollChock 3.

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Influence ofRollProfile Configuration on High-Strength
Influence ofRollProfile Configuration on High-Strength

According to the characteristic of high-strength strip, therollprofile configuration and change of CVCtandemcoldmillare analyzed. Through the establishment of FEM model, the influences of three representative forms ofrollprofile configuration on high-strength strip flatness control in CVCcoldrollingmillare compared, which are conventionalback-uproll/ CVC intermediateroll, back ...

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Axial Force Analysis andRollContourConfiguration of
Axial Force Analysis andRollContourConfiguration of

In order to analyze the influence of technical parameters on workrollaxial force of four-high continuous variable crown (CVC)mill, the deformation analyzing model with toprollsystem and strip was established based on influence function method. Then a CVC workrollcurve designing scheme was proposed and it was carried out on somecoldrollingmillconsidering the requirement of ...

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RollingMills: 6 Different Types ofRollingMills[Guide
RollingMills: 6 Different Types ofRollingMills[Guide

In this types ofrollingmill, It includes of a number of non-reversing two-highrollingmillsprovide one after other. So that the material can be passed through them all in order. This is only suitable for mass production work, as lower volumes require a quicker change of set up and they will consume a lot of labour and work.

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Stability Analysis of a Nonlinear Coupled Vibration Model
Stability Analysis of a Nonlinear Coupled Vibration Model

Abstract.Millchatter intandemcoldrollingmillis a major rejection to the quality and production of the strips. In mostmillvibration models, either therollmass is usually limited to vibrate in vertical direction and vertical-horizontal directions, or the multiplerollssystem is simplified to a single mass system.

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Spalling Prevention and Wear Improvement of ... - SpringerLink
Spalling Prevention and Wear Improvement of ... - SpringerLink

Spalling Prevention and Wear Improvement ofRollsin Steel Strip Hot-RollingProcess. Authors; Authors and affiliations ... a design process ofbackuprollprofile is proposed to homogenize contact stress distributions. ... G. Yang, J. Cao, J. Zhang, S. Jia, R. Tan,BackuprollcontourofaSmartCrowntandemcoldrollingmill. J. Univ. Sci ...

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PDFSolutions for AluminiumRollingMillsTechnology
PDFSolutions for AluminiumRollingMillsTechnology

HOTROLLINGMILLSADVANCED TECHNOLOGY FOR HIGH-QUALITY PRODUCTS Our portfolio features a full range of aluminium hotrollingmillsfor both new and revamp projects. These include: • Reversing roughingmills•Tandemmills• Twin-coilermills• Platemills• MinimillsWith our flexiblemillconfiguration, you canrollhigh quality

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Combined operating modes and frame types intandemcold
Combined operating modes and frame types intandemcold

The invention relates to a method for combining the operating modes of individualrollingframes in atandemcoldrollingmillcomprising respective pairs of workingrolls(10) andback-uprolls(12) in 4-roll frames and in addition a pair of intermediaterolls(11) in 6-roll frames, at least the workingrolls(10) and the intermediaterolls(11) interacting with devices for axial displacement.

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Winner's Engineering Solutions |RollingMills
Winner's Engineering Solutions |RollingMills

conventional four - highmills, however, remain. 6-Hi ReversingColdReductionMill. Gives the workrollsadequate support at strip edges through the action of the intermediaterollon theback- uprollso that strip shape can be preselected. Improvesrollforce distribution over the strip width and, installation and

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PDFCambering of Four HighColdMillwith the View of Reducing
PDFCambering of Four HighColdMillwith the View of Reducing

plex waves of normal four highcoldmilleffectively, but also will reduce the contact between roller ends and minishrollconsumption. This technology has created economic benefits for enterprises. Keywords: Complex Waves, Strip Shape,RollContour,RollContact,RollConsumption 1. Introduction In recent years, with the rapid development of ...

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Analysis of flatness control capability based on the
Analysis of flatness control capability based on the

Analysis of flatness control capability based on the effect function androllcontouroptimization for 6-h CVCcoldrollingmill

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JPH01266901A -Rollingmill- Google Patents
JPH01266901A -Rollingmill- Google Patents

PURPOSE: To control the sectional shape of a plate while sliding bothrollsin the axial directions by forming the copper profiles of bothrollsofthebackuprollsofamultiplerollingmillsoasto be complementary to each other in relative axial direction positions. CONSTITUTION: Thebackuprollpair 23, 24 has the same shape, and their mounting positions are set with a dislocation by 180 ...

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Optimization Technology ofRollContoursduring Skin-Pass
Optimization Technology ofRollContoursduring Skin-Pass

The hot-rolled strip skin-passmillis the important technological equipment of finishing process in the hotrollingplant, and its role is to apply a slight thickness reduction of approximately 1% - 4% to the finished products cooled to room temperature to repair flatness defects and improve the surface quality and mechanical properties. In this study, the initial flatrollcontourswere ...

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Optimization ofBackupRollChamfer Shape for Four High
Optimization ofBackupRollChamfer Shape for Four High

The elastic deformation ofrollsystem for CVCrollingmillis systematically analyzed using an influence function method.The distribution of contact pressure betweenrollsis calculated with three kinds of different chamfer shapes at the end ofbackuprollsand compared with that without chamfer.Optimal designs for parameters of straight,step and circle chamfers are done respectively.Asa...

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