reversible cold rolling mills shape control

PDF Flatness Control System of Cold Rolling Process with

The automatic flatness control system IHI Sheetflat has been applied to many cold rolling mills since 1985 The pneumatic type shape roll is used as the shape sensor Recently requirements for quality products have become much more important Therefore performance of the shape roll has also been improved to meet the requirements Strip shape is evaluated based on the Fourier s analysis...

New Rolling Method R f Reversing Cold Rolling Mill

Outline of reversing cold rolling mill and rolling method or the shape and/or thickness of the strip become worse Moreover since the The second one is such an example that a coil preparation line is provided in next to reversible rolling equipment 2 In the coil...

Tension and Thickness Control Strategy Analysis of Two

In order to lucubrate the rolling characteristic of the two stands reversible cold rolling mill and establish the tension and thickness control strategy the steady-state characteristic simulating program was established using the steady-state continuous rolling theory...

Rolling Mill Shape Control

Rolling Mill Shape Control System Description Cold rolling mills are an abundant source of control problems The problem of keeping the roll edge flat is called shape control Numerous cooling sprays are located across the roll and the flow through each spray is controlled by a valve The cool water sprayed on the roll reduces the thermal...

Decoupling control based on terminal sliding mode and

2015 Decoupling control based on terminal sliding mode and wavelet network for the speed and tension system of reversible cold strip rolling mill International Journal of Control...

China Stainless Steel Reversible Cold Rolling Mill with

Rolling Mill Cold Rolling Mill Four-Hi Reversible Cold Rolling Mill manufacturer / supplier in China offering Stainless Steel Reversible Cold Rolling Mill with Factory Price Forged Steel Working Rolls/ Forged Mill Roll/ Forged Track Roll Roller for Cold Rolling Mill Heavy Section Steel Roll and so on...

Shape Detecting and Shape Control of Cold Rolling Strip

Based on the shape detecting principle and the DSP Digital Signal Processing technology a high-precision shape detecting system of cold rolling strip is developed to meet industrial application It was successfully used in Angang 1250 mm HC 6-high reversible cold rolling mill The precision of shape detecting was 02 I the shape deviation was controlled within 6 I after the close loop...

Tension and Thickness Control Strategy Analysis of Two

In order to lucubrate the rolling characteristic of the two stands reversible cold rolling mill and establish the tension and thickness control strategy the steady-state characteristic simulating program was established using the steady-state continuous rolling theory The influences of each factor on exit thickness under different tension control methods were analyzed...

Tension and Thickness Control Strategy Analysis of Two

Oct 01 2012 0183 32 Cold Rolling Plant Jinan Iron and Steel Group Co Ltd j inan 250101 Shandong China Abstract In order to lucubrate the rolling characteristic of the two stands reversible cold rolling mill and establish the tension and thickness control strategy the steady-state characteristic simulating program was established using the steady-state...

Research and Development Trend of Shape Control for Cold

Jul 19 2017 0183 32 Shape is an important quality index of cold rolling strip Up to now many problems in the shape control domain have not been solved satisfactorily and a review on the research progress in the shape control domain can help to seek new breakthrough directions In the past 10 years researches and applications of shape control models shape control means shape detection technology and shape...

22 Automatic Flatness Control System AFC KOBE STEEL

We Kobe Steel Ltd have supplied many aluminum and non-ferrous rolling mills since 1965 We can meet your expectations and provide the best solution of the rolling mill technologies based on a plenty of our results and experienc...

China 850mm 4

Rolling Mill Metal Casting Rolling Machinery manufacturer / supplier in China offering 850mm 4- Hi Reversible AGC Cold Rolling Mill Welding Tube Moulds Tube Forming Rollers Weld Pipe Die Centrifugally Casting Icdp Mill Roll Cast Iron Roll and so on...

Coupling Mechanism of Control on Strip Profile and

Le Liu Suyan Ding Jie Gao Yiming Fang Adaptive Nonsingular Terminal Sliding Mode Backstepping Control for the Speed and Tension System of the Reversible Cold Strip Rolling Mill Using Disturbance Observers IEEE Access 101109/ACCESS20192956188 7 171246-171259 2019...

Carbon Steel Electric Rolling Mill Machines 1000mm 4 Hi

Cold Rolling Mill AGC Hydraulic 6 Hi Cold Rolling Mill 700mm Carbon Steel 390m / min Speed Automatic Cold Reversible Rolling Mill 4 Hi 650mm AGC Screw Down Type Rigid 20 High Cold Rolling Mill Machinery High Precision Stainless Steel Rolling Mill Temper Rolling Mill Hardened Temper Rolling Mill Four Roller For Carbon Steel High Elasticity...

Analysis of Startup Process and Its Optimization for a Two

Dynamic characteristic analysis of a two-stand reversible cold rolling mill in the startup process was carried out The delay algorithm of the interstand thickness was proposed A new method combined with the accelerated secant and the tangent methods was established to solve the simultaneous equations The thickness and interstand tension transition processes with different static tension...

Cold rolling shape defects of stainless steel wide strips

bone fig 3 and can occur when rolling with small diameter working rolls Cold rolling shape defects of stainless steel wide strips Chiran Andrei Moisa Bogdan Nicolescu Georgian Priceputu Ionut Bacinschi Zorica Advances in Control Chemical Engineering Civil Engineering and Mechanical Engineering ISBN 978-960-474-251-6 154...

Neural Network Dynamic Surface Backstepping Control for

Sep 15 2017 0183 32 To weaken the influences of uncertainties and system coupling items on the coordinated tracking control performance of the speed and tension system of a reversible cold strip rolling mill a control strategy is proposed based on nonlinear disturbance observers NDOs dynamic surface backstepping control and neural network adaptive approximation...

6 High Reversible Cold Rolling Mill

Originally these mills were designed to be without shape control as it was thought that the mechanical crown adjustments would suffice however modern quality and productivity requirements have meant that successfully operated mills do possess sophisticated shape control systems 17 19...

Reversing cold mills steel SMS group

Reversing Cold Mills RCM consisting of a rolling stand are the ideal plant type for an annual production in the range of 100 000 to 500 000 tons They can roll a wide range of steel grad Reversing cold mills are also a good solution for demanding silicon or stainless steels...

Decoupling control based on terminal sliding mode and

To weaken the nonlinear coupling influences among the variables in the speed and tension system of reversible cold strip rolling mill a novel dynamic decoupling control strategy is proposed based on nonsingular fast terminal sliding mode NFTSM and wavelet neural network WNN First nonlinear disturbance observers are developed to counteract the mismatched uncertainties and then input...

Research and Development Trend of Shape Control for

Research and Development Trend of Shape Control for Cold Rolling Strip 1249 123 strip shape exists in the ultra-wide strip rolling process and cold rolling mill was established by Bai et al 35 to control strip edge drop and keep the rolling process stable...

Rolling Process Working Application Defects Type of

5 Cluster Rolling Mills In this type of rolling mill there are two basic roles that are backed up by two or more rolls which are bigger than those two basic rolls These backed up rolls give more pressure to the basic rolls to heavily press the strip...

CISDI Ironmaking Steelmaking Steel Business Worldwide

CISDI is China global engineering service provider we do steel business about steelmaking ironmaking rolling mill offer material storage material handle automation control and energy saving projects We focuse on process mechanical electrical automation instrument and system integration based on core products We are state-owned engineering company provide technical services as...

SHAPE CONTROL SENSOR FOR COLD ROLLING MILLS

In cold rolling metals in multi-stand mills with parallel rolls in adjacent stands unequal tension across the strip width causes faulty shape In order to control the process it is essential to determine and measure the discrepancy in shape The present invention is directed...

reversible cold rolling mills shape control

reversible cold rolling mills shape control GM stone crusher machine is designed to achieve maximum productivity and high reduction ratio From large primary jaw crusher and impact crusher to cone crusher and VSI series for secondary or tertiary stone crushing GM can supply the right crusher as well as complete crushing plant to meet your material reduction requirements...

What is a Reversing Mill

Mar 17 2014 0183 32 A reversing mill is a rolling mill in which the workpiece is passed forward and backward through a pair of rolls The reversing mill is so named because the steel runs back and forth between the rollers reducing the thickness incrementally with each pass A reversing mill can be used to reduce material to gauge...

6 High Reversible Cold Rolling Mill

Feb 10 2012 0183 32 Originally these mills were designed to be without shape control as it was thought that the mechanical crown adjustments would suffice however modern quality and productivity requirements have meant that successfully operated mills do possess sophisticated shape control systems 17 19...

Tension and Thickness Control Strategy Analysis of Two

The shape control for 900 mm HC mill was analyzed using the emulation software of strip cold rolling control based on strip element method and the strategy of shape and profile control was formed...

A BASIC UNDERSTANDING OF THE MECHANICS OF

on wear is another issue Stresses from Hertzian pressure in 4-high cold mill back up rolls were measured years ago the results were never published but of high interest - also maybe later K H Schröder July 2003 K H Schröder A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL ROLLS File SCHROEDER_ROLLS_010703DOC...

Control Strategies of Asymmetric Strip Shape in Six

And they are applied for 900HC reversible cold rolling mill The flatness control system is designed and a simple controller is developed A Neural Network-Based Shape Control System for Cold...

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