Reversible Cold Rolling Mills Shape Control

What is a Reversing Mill? - Definition from Corrosionpedia

The purpose of the reversing mill is to reduce the thickness of the steel to the customer's specifications. The hot roll band passes back and forth between the rolls until it reaches the specified thickness. Benefits of reversing mills include: Flexible, low-cost rolling of a wide range of products. Tight strip thickness and shape tolerances.

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China 4 High Reversing Cold Rolling Mill Plant - China ...

The 4 High reversing cold rolling mill will carry out finish rolling of stainless steel coils with material thickness of 2.5-3.25mm. After several passes of rolling, it will be rolled into high-precision cold-rolled steel coils of 0.5-1.95mm, using a single-stand reversible four-roll cold rolling mill to ensure high-speed and stable production ...

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Shape Meter | Scientific.Net

It was applied in 1250 mm cold rolling mill, the actual industrial tests prove that the shape signal was stable and reliable, met the harsh condition and the online technical requirements, and could improve shape quality significantly. And the shape close loop control of the 0.18 mm thin cold strip was successful realized.

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

or in many older mills by a screw arrangement driven by an electric motor [6]. Figure 1. The rolling process (flat rolling). 3. Mathematical Model of Cold Rolling Process . 3.1. Force Equation . Define the theory for prediction of specific roll force is central to the development of a model for tandem cold rolling. Referring to, which ...

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High Precision 20 Cold Rolling Mill – the "Hand Tearable ...

The 20 cold rolling mill of AT&M is equipped with high precision Automatic Gauge Control (AGC) system and convenient rolling procedure management system, with characteristics of high rolling speed, accurate thickness, excellent shape, stable control etc. During rolling process, control accuracy of strip thickness could achieve within 2% of the ...

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Industry Machinery | サンビジョン

Company name:ANDRITZ SUNDWIG Product name:Reversible cold rolling mill Experienced rolling mill manufacturer SUNDWIG uses the knowledge needed by the cold rolling industry to We have been manufacturing flatness control systems for over 22 years. The SUNDWIG-BFI automatic shape control system is highly evaluated.

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DE2163862A1 - Two high reversing mill - with hydraulic ...

Low speed, high torque, reversible hydraulic motors are employed as direct drives for the rolls or spindles of hot rolling two high reversing mills. The use of these motors is cheaper in capital cost and speeds up the reversing time from 2.5 sec. for electric motor drives to 0.5 sec. The mills are used in steel mills, etc.

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China Low Price 4- Hi Reversible AGC Cold Rolling Mill ...

China Low Price 4- Hi Reversible AGC Cold Rolling Mill, Find details about China Rolling Mill, Mill from Low Price 4- Hi Reversible AGC Cold Rolling Mill - …

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Reversible Rolling Mill - Manufacturers & Suppliers in India

FAGOR reversible rolling mills guarantee high productivity, with speeds of up to 2000 m/min and quick roll change, automatic load feed and control by computerised process modelling. Our half-a-million ton per year range rolling mills provide the best performance-to-price ratio on the market. The rolling mill stand has spraying

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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.

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US3248916A - Workpiece shape control with a rolling mill ...

US3248916A US276268A US27626863A US3248916A US 3248916 A US3248916 A US 3248916A US 276268 A US276268 A US 276268A US 27626863 A US27626863 A US 27626863A US 3248916 A US3248916 A US 3248916A Authority US United States Prior art keywords workpiece roll mill thickness force Prior art date Legal status (The legal …

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6 High Reversible Cold Rolling Mill - SlideShare

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.

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skew rolling mill - Popular skew rolling mill

Skew rolling mill for steel ball production Skew rolling mill for steel ball production :Our company mainly produces Φ20mm-Φ150mm steel ball hot rolling production line.Forever Furnace steel balls have feature high accurate dimensions,rounded geometry shape,high hardness and good mechanical properties,wear-resistance,no deformation,no breakage.

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Cold rolling mill plate handling, difficult problems and ...

The shape control of the cold rolling mill is more widely used at this stage in terms of its special tools, such as the level shift of the middle roll and the skew of the roll gap. In addition, if there is a bending roll system on the cold rolling mill, the bending roll system software can be adjusted to maintain the operation.

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Research on flatness intelligent control via GA–PIDNN ...

The GA–PIDNN controller is designed mainly for 900HC reversible cold rolling mill. The flatness control system main-ly includes the design of flatness pattern recognition model, flatness predictive model and the flatness control scheme (Zhang et al. 2012).Two control means, work roll bending and intermediate roll shifting, are adopted in the process of …

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China Customized 4 HI Cold Rolling Mill Manufacturers ...

4-Hi reversible cold rolling mill. Uses and characteristics. 1. It is suitable for strip rolling of plain carbon steel, stainless steel, special steel and so on. 2. Divided into the work roll and backup roll transmission mode: ordinary electric pressing and AGC hydraulic pressing two control modes. 3.

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,single stand reversing cold mill, …

1.Load Balance Control of Top/Bottom WRs for Single Stand Reversing Cold Mill 2.Optimization of Intermediate Roll Shape Curve for Six High Reversing Cold Rolling Mill with One Stand 3.Study of Thickness Control Strategy for Single Stand Reversible Cold Rolling Mill; ...

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Industrial shape detecting system of cold rolling strip ...

The shape detecting system was successfully used in Angang 1 250 mm HC 6-high reversible cold rolling mill. The precision of shape detecting is 0.2 I and the shape deviation is controlled within 6 I after the close loop shape control is input.

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Shape and Gauge Control of Strip in a Cold Rolling Mill ...

Shape and Gauge Control of Strip in a Cold Rolling Mill. satyendra; October 6, 2020; 1 Comment ; AFC, AGC, GBC, GFG, GMC, HGC, reversing mill, SC, tandem mill, TCG, TCS, TCT, Shape and Gauge Control of Strip in a Cold Rolling Mill. The economic efficiency of metal rolling processes is strongly correlated to the quality level of the end-rolled ...

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SMS group : Reversing cold mills (steel)

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 grades. Reversing cold mills are also a good solution for demanding silicon or stainless steels. We offer you the right type of stand for every product mix.

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Axial Force Analysis and Roll Contour Configuration of ...

Load distribution optimization is a feasible way for strip shape control in the traditional rolling mills, while its effect is limited . The CVC system is developed as a more effect control method and is employed on many cold rolling and hot rolling mills . The work rolls of the four-high CVC mill both have an "S" shape and are arranged ...

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Advanced Reversing Cold Mills by Primetals Technologies ...

Single-stand reversing cold mills. Depending on the product mix, a single-stand cold rolling mill can deliver rolling capacities of 100,000 to 400,000 t/a. Rolling schedules can be carried out with an even or odd number of passes to maximize mill availability and performance.

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Performance comparison of 20 high and 12 high cold rolling ...

3) Ensure product dimensional accuracy, good plate shape and surface quality; 2. Basic requirements for cold rolling mill. The specific requirements for cold rolling mill can be summarized as follows:

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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 to this feature and is briefly illustrated in FIG. 5.

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Reversible Rolling Mill Machine manufacturers & suppliers

Sourcing Guide for Reversible Rolling Mill Machine: China manufacturing industries are full of strong and consistent exporters. We are here to bring together China factories that

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Shape Detecting and Shape Control of Cold Rolling Strip ...

Shape Detecting and Shape Control of Cold Rolling Strip Abstract: 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.

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China High Speed 4- Hi Reversible AGC Cold Rolling Mill ...

China High Speed 4- Hi Reversible AGC Cold Rolling Mill, Find details about China Rolling Mill, Cold Rolling Mill from High Speed 4- Hi Reversible AGC Cold Rolling Mill - Tangshan Weilang Trading Co., Ltd.

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China 4- Hi Reversible AGC Cold Rolling Mill for Stainless ...

China 4- Hi Reversible AGC Cold Rolling Mill for Stainless Steel, Find details about China Rolling Mill, Machinery from 4- Hi Reversible AGC Cold Rolling Mill for Stainless Steel - Tangshan Weilang Trading Co., Ltd.

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Bulk-buy 4- Hi Reversible AGC Cold Rolling Mill for ...

Check out the 2021 new 4- Hi Reversible AGC Cold Rolling Mill for Stainless Steel from Tangshan Weilang Trading Co., Ltd.. Here are multi-dimension videos for your reference such as product videos and company videos. We will offer you Rolling Mill qualifies with above-average "up-times", low maintenance requirements, and ease of operation.

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(DOC) Optimization of Cold Rolling Mill Parameter to ...

Rolling parameter setting or scheduling is an important aspect in the operation of Reversible cold rolling mills. It defines reductions in each pass, tensions (Forward & Backward), rolling forces, roll torque ( Mill top & bottom drive motor current), mill maximum speeds.

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Robust Adaptive Backstepping Control for Web Winding ...

In the cold rolling process, the web winding system (WWS) of reversible cold rolling mill, as a high precision mechanical-electrical system, plays an important role in the stable operation of rolling. The non-linear model of the WWS is characterized by a relatively strong coupling relationship between the winder tension, the main mill velocity and the unwinder …

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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 …

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Development of a virtual shapemeter based on a shape ...

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 …

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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, 10.1109/ACCESS.2019.2956188, 7, (171246-171259), (2019).

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[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 …

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Research on Gauge Control of Reversible Cold Rolling Mill ...

Abstract: With the development of economic and social, the proportion of cold-rolled strip steel in total steel consumption continues to increase.The thickness and shape of strip are important quality indicators. Automatic gauge control is one of the key technologies in strip rolling fields. It is directly related to the product quality and economic efficiency.

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