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.

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 …

JX Industrial has successfully supplied cold reversing mill with produc-tion management,historical archive by level 2 system and AFC system with shape meter internationally which has satisfied our customer about surface tolerances, quality, automation and production capacity.

Used 15.5" United 4-Hi Cold Rolling Mill for Steel: RM-450 in United States. Manufacturer: United 15" cold mill for steel / very nice mill !!! Manufacturer - United Engineering / new 1950's - Upgrades in 1995 = revamped, new thyristor drives, new hydraulic screwdowns, and new AGC Status - Installed, under p...

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 ...

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

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.

The key system in the reversible cold rolling mill is the web winding system (WWS). The WWS is a complex process characterized by multiple variables with varying parameters in time, a strong coupling and a non-linearity, various operating conditions. For many products, such as thin film tapes, highly precise control of web tension and web velocity to …

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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Study on Rolling Characteristic and Flatness Control Characteristic of4-high Two-Stand Reversible Cold Rolling MillCN

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.

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:

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

10%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.

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.

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.

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).

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.

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.

Third, robust controllers for the rolling mill system's current inside loop are designed based on the cascade control thought, so as to realize the tracking control for the speed and tension of reversible cold strip rolling mill. Theoretical analyses show that the resulting closed‐loop system is stable.

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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.

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 1962-09-21 Legal status (The legal …

The most common configuration is the single reversing mill. Various mill designs are offered that include 6-high UCMs (Universal Crown Control Mill), ZR mills and 12-high cold-rolling mills with small-diameter work rolls for the efficient rolling of materials of high hardness.

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 …

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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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 …

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.