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Research on application of Smith predictor to monitor AGC in hot strip rolling mills
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
DOI: 10.14257/ijca.2017.10.6.06 Corpus ID: 136283877. Application of comprehensive AGC system for aluminum twin-stand cold rolling mill @article{Zhang2017ApplicationOC, title={Application of comprehensive AGC system for aluminum twin-stand cold rolling mill}, author={Fei Zhang and Xiang Wang and Shengyue Zong and Zhi Ling and Hongping Pei}, journal={International Journal of 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.
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.
In this paper, we propose an effective mechanical-electrical-hydraulic-interfacial coupling vibration model for hot rolling mills and obtain a practical measure to relieve mill vibration. First, an experiment related to mill modulus control gain in automatic gauge control (AGC) is carried out during manufacturing. Rolling mill vibration is observed to gradually be enhanced with increasing mill ...
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 ...
Hot Rolling Mill Roll Eccentricity Crushing. Temper Hot Cold Rolling Mill Steel Equipment. Cold rolling mills.Butech bliss can assist customers in selecting the proper mill configuration and sie it specifically for the application.Butech bliss can provide mills in two or four high roll configurations.Typical arrangements include reel to reel installations, in-line mills, combination
4-high rolling mills used for reduction and skinpass at its Hagen, Germany, location. In this case, each mill uti-measurement. The application at each roll mill required a set of two LSVs, one located on either side of the mill. The combina-tion measures strip entry and exit speed for determining elongation or for mass flow calculations.
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 ...
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
Hot Rolling Mills TMEIC. Hot rolling mills roll heated steel, stainless, and aluminum slabs to make hot strip with a thickness of a few millimeters to over ten millimeters. Hot coils are shipped as they are, or moved to another operation and processed to cold rolled sheet, coated steel sheet, or steel pipe.
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.
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 ...
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.
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 ...
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.
Dec 22, 2013· Main Features of a modern Hot Strip Mill. satyendra; December 22, 2013; 0 Comments ; AGC, coiler, HGC. AWC. Coil box, Reheating furnace, Main Features of a modern Hot Strip Mill. The objective of a hot strip mill (HSM) is to reheat and roll thick slabs into thin strip .
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 ...
C OUPLING VIBRATION MODEL FOR HOT ROLLING MILLS AND ITS APPLICATION. JIMIN W U, X IAOQIANG Y AN ISSN P RINT 1392-8716, ISSN O NLINE 2538-8460, K AUNAS, L ITHUANIA 1799 speed at entry and exit, respectively; ö 5, ö 6 and ö á are the strip entry angle, the strip exit angle and the neutral angle, respectively; R å is the roll speed; D Ö is the roll gap spacing along the
Feb 01, 2010· The mathematic model of control object is established based on a monitor AGC system for cold rolling mill. and the model parameters are: material The fuzzy control strategy was brought in normal PID Smith prediction controller. Based on the monitor AGC system of a cold rolling mill. the typical transfer model of controlled device was deduced.
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.
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.
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
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