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Research on application of Smith predictor to monitor AGC in hot strip rolling mills ... which has some negative effect on the control of strip thickness, so the monitor AGC was not a control system in time. ... rolling mills strip gauge precision Smith predictor hot strip rolling mills finishing mill x-ray thickness gauge AGC system ...
Highest performing Hot Strip Mills Primetals Technologies. HOT STRIP MILL — HIGHEST PERFORMANCE FOR NEW AND EXISTING STEEL MILLS The demand for hot rolled strip is growing in multiple ways. To remain competitive new and existing mills must meet this challenge in the best possible way. The production of hot strip is a . Cold Rolling MillU.S. Steel
Our sensors and systems in the Veri-series will help you to keep your product flatness under control from hot rolling to the final user. Our five types of solutions are tailored for flatness measurement in the different phases of the flat metal production, starting in the demanding hot rolling mill, via different types of plate and strip ...
Hot rolling mill thus helps in reducing the size of a metal thereby molding it into the desired form and shape. Rolling mills perform the function to reform the metal pieces such as billet and ingot whilst maintaining its well equipped micro structure into bar, wire, sheet, strip, and plate. Hot rolled products are frequently categorized
The Hot Finish mill forms the strip to the final dimension. ... is an essential component of modern rolling mills. Comprehensive AGC algorithms incorporate readings from dozens of sensors around the mill to control thickness to high tolerances.. ... real-time measurements that help meet specifications of various applications while maximizing ...
When rolling steel sheets on hot strip mills, to avoid a temperature drop in the rolled material, it is necessary to pass it through finishing ... Fig. 7 Improvement of gauge accuracy through application of absolute mode AGC Fig. 8 Result of automatic crown set-up control
Spring model is important restrictive factors to improve the precision of AGC control system. To improve the accuracy of strip gauge control, Study on various influencing factors of spring model has important significance in rolling process. Therefore, using ABAQUS finite element software, this paper establishes the whole stand model of strip rolling.
S.-B. Tan, M.-W. Bao, and J.-C. Liu, "Research on application of smith predictor to monitor AGC in hot strip rolling mills," in Proceedings of the Chinese Control and Decision Conference (CCDC '09), pp. 4172–4175, Guilin, China, June 2009. View at: Publisher Site | Google Scholar
Because conventional PID controller is difficult to solve the pure lag problem, so the technology of monitor AGC caused in hot strip rolling mills, the control strategy of predicted extrapolation ...
Over the years, our steel mill applications has covered the whole steel making production line, from ship unloader, sintering machine, coke ovens, torpedo cars, blast furnaces, BOF (basic oxygen furnaces), EAF (electric arc furnaces), continuous casting machines, furnaces, hot strip mills, plate mills, rolling mills, roughing stands, finishing ...
The application at each roll mill required a set of two LSV's, one located on either side of the mill. The combination measures strip entry and exit speed for determining elongation or for mass flow calculations. One of the 4-High rolling mills is a reversing mill so the strip could be moving in either direction.
Mill Modulus Control (MMC) is one of important methods on Automatic Gauge Control (AGC) systems of strip rolling mills. It would result in a slower adjusting speed of strip rolling gap to combine the former AGC system and MMC simply without changing the compensating coefficient of rolling efficiency, which was deduced in detail by some inferential reasoning formulas.
Applications Of Hot Strip Mill Wikipedia. Arcelormittal usa is part of arcelormittal, the worlds leading steel and mining companyuided by a philosophy to produce safe, sustainable steel, we are a leading supplier of quality steel products in major north american .
In response to the characteristics of large time delay, nonlinear, various disturbances in Monitor AGC system for cold rolling mill, a control strategy combining Smith predictor with Active Disturbance Rejection Control (ADRC) is proposed. Approximation ability of Extended State Observer (ESO) to estimate unknown parts of controlled plant model is promoted by model compensated ADRC.
Mar 31, 2015· ThyssenKrupp Steel Europe spent a quarter of a million euros on renovating its hot-strip rolling mill in Duisburg. The animation shows how it all works.
The novel GM-AGC system has been applied successfully in a hot strip mill, the application results show that the thickness control precision is improved significantly, with the novel GM-AGC system ...
Nov 12, 2013· been developed for hot or cold mill processes. The Brit-ish Iron and SteelResearch Association (B1SRA) AGC method based on the gaug meter principle and the feede forward AGC method using the delivery time of the strip have been widely utilized in steel rolling mills [3]. Strip products thickness precision is an important quality parameter.
Research on application of Smith predictor to monitor AGC in hot strip rolling mills
Jun 27, 2008· Abstract: Mill Modulus Control (MMC) is one of important methods on Automatic Gauge Control (AGC) systems of strip rolling mills. It would result in a slower adjusting speed of strip rolling gap to combine the former AGC system and MMC simply without changing the compensating coefficient of rolling efficiency, which was deduced in detail by some inferential reasoning formulas.
Dec 03, 2015· Rolling of steel in Hot Strip Mill. satyendra; December 3, 2015; 0 Comments ; AGC, edger, finishing mill, hot strip mill, Laminar cooling, rolling speed, scale breaker, slab. roughing mill, tension,; Rolling of steel in Hot Strip Mill. Hot strip mills in these days are either conventional hot strip mills or strip mills for rolling thin slabs.
Cold-Rolling Mill Machine Sale. Main Applications: Steel Coil Aluminum Coil Copper Coil Your Application We also provide high precision cold rolling mill and hot rolling mill You Need Better Cold-Rolling Mill at Good Price. Due to government environmental protection and Deproductivity Action, a lot of good machines are stopped, we can find you second hand rolling mills with good condition and ...
Mar 16, 2014· The novel GM-AGC system has been applied successfully in a hot strip mill, the application results show that the thickness control precision is improved significantly, with the novel GM-AGC system, over 98.6% of the strip thickness deviation of 3.0 mm class can be controlled within the target tolerances of ±20 μm.
Waterbury Farrel Automatic Gauge Control (AGC) Systems ensure close-tolerance strip at the push of a button. The system automatically maintains extremely tight gauge tolerances as the strip passes through the mill at up to 1,000 meters per minute. The Waterbury Farrel patented AGC monitors strip gauge and corrects any variation within milliseconds.
P. Kucsera et al. Hot Rolling Mill HGC Thickness Control Improvement – 98 – Another way to determine the thermal expansion of the work roll is the modelling of the heat transfer between the work rolls and the strip. This depends on the roll speed, strip thickness, the properties of the strip, roll gap, contact time and cooling parameters.
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