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.
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 data processing algorithm is put forward. It figures out stability and dynamic nature of system that the pure lag and programmed algorithm induce.
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 …
With these result, the controller can be regulate more quickly and acquire x better effectiveness in practice. The simulation shows it. The conclusion can be extended to the controller design of other rolling mills such as hot strip rolling mills. REFERENCE [1] N.Olgac, R.Sipahi, Automatica. 40, …
Descales are a must in hot strip mills for attaining good surface quality.Present day descales employ state of the art nozzle technology with highly effective application of high pressure water (upto 400 bars). Descales are usually of closed design to prevent water from escaping.
narrow hot strip mill is here described. DOI: 10.1115/1.2361323 Keywords: hot strip rolling mills, multi-variable control, multi-objective control, dy-namic models 1 Introduction In this paper we report the results concerning the application of advanced multi-variable control techniques to hot strip mills HSM .
Descales are a must in hot strip mills for attaining good surface quality.Present day descales employ state of the art nozzle technology with highly effective application of high pressure water (upto 400 bars). Descales are usually of closed design to prevent water from escaping.
Jan 26, 2015 Experience from rolling shows that the AGC is capable to reduce thickness deviations of an magnitude of 10-30μmthe AGC is capable to reduce thickness deviations of an magnitude of 10-30μm down to 1-4μm. In this way more strip will be kept within tolerances. Normally, thedown to 1-4μm.
be satisfied in hot rolling mills; these are the dimensional quality and mass flow of the strip. The dimensional quality specification includes the thickness, width, flatness and profile of the strip. Control is performed by dedicated control sys-tems such as AGC (Automatic Gauge Control), AWC (Automatic Width Control), ASC (Auto-
Aug 01, 1981 Flatnes~ Control System for Hot Strip Mills Effect on Automatic Gauge Control Automatic gauge control (AGC) of final stand of finishing mill had not been used before flatness control was developed. The main reason is that when AGC of final stand is activated, the variation in rolling force injures flatness of the strip.
Qty. 1 Second-hand double stand cold rolling mill stand Mfc.: SMS/Germany Type: 4-Hi Double Stand Cold Rolling Mill Built: 2009 Stopped: 2017 Capacity: 800,000 Ton/Year Annual running: 6480 h Strip width: 800 – 1650 mm Thickness entry: 1.8~5.0 mm Exit: 0.3 – 2.5 mm Coil OD: 1000~2200 mm Coil ID: 610 mm Coil Weight: Max. 30 T Line Speed: max. 1350 m/min Threading Speed: 30 m/min
Narrow Strip & Plate Mills. Preet & our associates (Engineering Companies) has designed, manufactured and successfully delivered Semi Continuous narrow Hot Strip Mill. Semi Continuous Hot Strip Mill which incorporates the latest proven technology and know-how available in the steel industry. Our experienced team of engineers and design has ...
In order to improve the quality of the hot strip gage and to reduce the strip thickness deviation, the automatic gauge control (AGC) system now is widely used in modern hot strip mills. Mill...
In this article the AGC (Automated Gauge Control) system, of a hot rolling mill is analyzed and different methods are described to improve its performance. The mill stretch compensation and other disturbances during the rolling process are
Jun 01, 2007 Recently, the accuracy of hot strip gauge is strictly demanded, and the strip thickness becomes the most important quality in hot strip rolling. In order to improve the quality of the hot strip gage and to reduce the strip thickness deviation, the automatic gauge control (AGC) system now is widely used in modern hot strip mills. Mill modulus control (MMC) is one of important methods in AGC ...
Jan 01, 2015 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 …
Aug 01, 1987 Digital Simulation of Hot Strip Mill AGC System --Application of Hydraulic Mill to Hot Strip Rolling --. lshikawajima-Harima Gihou, Vol.17, No.3, pp.287-292. Tanimoto, S. (1984). New Tension Measurement and Control System in Hot Strip Finishing Mill.
Rolling Mill Technology. Rolling Mill technology is a core competency of IMS. This is where IMS truly got its start, and remains at the heart of what we do. When it comes to Rolling knowledge and experience, IMS is a world leader. IMS was one of the first companies to pioneer the application of PLC systems to all aspects of rolling mill control.
maximum rolling speed of a cold or foil mill, 8 meters of strip is produced. It is easy to see why Automatic Gauge Control (AGC) is an essential component of modern rolling mills. Comprehensive AGC algorithms incorporate readings from dozens of sensors around the mill. Some of the key AGC input parameters are speed and tension. (See Figure 1)
According to the virtual model fitted by true measured parameters, the Smith predictor in the monitor AGC was applied to predict the gauge error in the finishing mill and used this gauge error to control the …
hot steel strip rolling mill Top PDF hot steel strip rolling mill: COMPUTER SIMULATION AND EXPERIMENTAL STUDY FOR CALCULATION OF SLAB SLIP FORWARD FACTOR IN FINISHING ROLL AREA OF HOT STRIP MILL OF MOBARAKEH STEEL COMPANY Of the most important of these changes, one can ...
[3]. Z. X. Li and X. H. Liu, Research of the Gauge Control System for 2160 Hot Strip Mill at Shrugging, Metallurgical Industry Automation, 2010, 100-102. [4]. X. C. Zhang, Development and Application of AGC Control System for 1500mm Hot Continuous Rolling in …
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 data processing algorithm is put forward. It figures out stability and dynamic nature of system that the pure lag and programmed algorithm induce.
ANDRITZ Herr-Voss Stamco provides engineering and supply of new or upgraded roll change equipment for rolling mills. Mill types included are skin pass, temper, hot and cold rolling mills. Mill configurations include 2 High, 4 High and 6 High. Styles that are provided are as follows: Porter bar. Hydraulic cylinder retraction and insertion.
The rolling stand in FIG. 1, a four-high rolling stand, is used for the hot rolling or cold rolling of metallic strip material 1, which consists, e.g., of various grades of steel, and has backup rolls 2, 3 and work rolls 4, 5, each of which is pivoted in chocks 6, 7.
Jun 19, 2009 Research on application of Smith predictor to monitor AGC in hot strip rolling mills Abstract: Because of the long distance between the last finishing mill and the X-ray thickness gauge, there was a long delay time for the AGC system to get the gauge error information feedback, which has some negative effect on the control of strip thickness, so the monitor AGC was not a control system …
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.
Mar 30, 2021 Y. Zhong, S. Tan, and X. Xu, “Research and application of the feedforward AGC system in hot strip rolling mills,” Journal of Northeastern University (Natural Science), vol. 30, no. 2, pp. 169–171, February 2009. Google Scholar [39]
Apr 22, 2020 The rolling mill vibration is characterized by the coupling effects among mechanical, electrical, hydraulic and interfacial subsystems. The influence of the mill modulus control gain in automatic gauge control on the vibration in hot rolling mills was investigated. Firstly, an experiment related to the mill modulus control gain was carried out in the hot rolling mill process, and it was …
