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 View at Google Scholar View at Scopus
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
SMS DEMAG Hot Strip Mills 10 The drum-type shear installed between the roughing and finishing mills of a hot strip mill crops the trans-fer bar at its head and tail In special applications, the drum-type shear also serves to divide transfer bars and finished plat Based on the experience gained from more than 60 drum-type shears built so far.
Contact-free measurement of the temperature in steel and hot rolling mills and in metal working; Cableway; Station platform system; Finishing and coiler area; Hot strip mill, sheet mills and blooming train; Transport, logistics and storage systems in the steel mill; Rolling mill for long products; Production of fine sections and steel wire
May 07, 2015· Metal strip thickness gauge with 0001 mm accuracy for cold rolling mills (steel, brass, aluminium, Titanium Zinc, Nickel, bimetal,,) with AGC outputs, thickness range 0 - ,
agc cylinder rolling mill agc cylinder rollingmill spits agc cylinder rolling mill artsclubinstitute efficiency and raise overall productivityPrimetals in the endless rolling line of the hot strip millby providing hydraulic gap adjusting cylinders with the AGC Agc Cylinder, Agc Cylinder Suppliers and Manufacturers at CSP__ Get Price
In rolling mill, the accuracy and quality of the strip exit thickness are very important factors To realize high accuracy in the strip exit thickness, the Automatic Gauge Control (AGC) system is used Because of roll eccentricity in backup rolls, the exit thickness deviates periodically In this paper, we design PI controller in outer loop for the strip exit thickness while PD controller is .
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
Interstand Tension Control in Hot Strip Mills with Loopers Interaction of Strip Tension and Roll Gap Control Looperless Tension Control Three-Stage AGC for Tandem Cold Mills Three-Stage AGC for Tandem Hot Strip Mills Feedforward AGC for Tandem Cold Mills Flow-Stress Feedforward AGC for Tandem NIIR Project Consultancy Services (NPCS) 4/13
This paper has researched strip width model in hot strip rolling Analyzed physical phenomena influencing strip width, established calculation model in production including width spread during flat rolling, width change induced by bending, width changed by high temperature creep and thermal expansion and contraction during rolling Practical applications in domestic 1500 hot strip mill show .
Mill control system and method for metal strip rolling con trolled in response to a sequence of controller scans are pro vided A sensor suite is coupled to sense a plurality of param eters regarding the strip rolling A model responsive to the sensed parameters is configured to estimate per scan at least
HEAT TRANSFER OF LAMINAR FLOW COOLING DURING STRIP ACCELERATION ON HOT STRIP MILL RUNOUT TABLES , steel strip Accelerated cooling has been implemented in hot strip mills to reduce the heat loss on the delay , to review the previous research works of stationary, steady state moving, and mill application c ases in the following
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
Hot rolling is a metalworking process that occurs above the recrystallization temperature of the material After the grains deform during processing, they recrystallize, which maintains an equiaxed microstructure and prevents the metal from work hardening The starting material is usually large pieces of metal, like semi-finished casting products, such as slabs, blooms, and billets
Research on application of Smith predictor to monitor AGC in hot strip rolling mills
Aimed at the complex demand of hot strip rolling mill in practicing, the configuration of the coiler and the technological process is analyzed The arithmetic of coiling tension and the control process is introduced The frame of the tension adjusting system is given The coiler control system hardware is designed The system is designed scientifically with steady control and meets demand of .
Rolling - Slitting Plants for the manufacturing Industry Two-high cold rolling plants with automatically operating strip thickness measuring, regulating and controlling system, AGC-System
Application of Hot Rolling Lubrication on a Reversing Coil/Plate Mill Roll lubrication was introduced to the 4-high Steckel mill at Nucor Steel Tuscaloosa Inc in 2011 It was found that the benefits included a significant extension to roll service life and notable reduction of mill torque This paper will describe the mechanism of lubrication in
TMEIC Supplies Superior Control Systems for Hot Rolling Mills 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
tandem rolling mill or continuous rolling mill: tandem rolling mill process It is a modern rolling mills and the rolling is done by one pass The rolling is done in several passes for traditional several stands and reduction that take place successive roll The number of stands like as 2 to 18 Those are either hot or cold rolling mill typ
selection of the related rolling mill equipment The portfolio of Primetals Technologies hot strip mill technology covers all these demands The hot strip mill for ArcelorMittal in Krakow (Poland) and the hot strip mill for SAIL RSP in Rourkela (India) are two examples ,
Dec 22, 2013· 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 with a wide range of thickness Because of its huge size and large investment a hot strip mill need to have a life time of several decad
Oct 30, 2017· Metal strip thickness gauge with accuracy 0,001 mm for cold rolling mills (steel, lead, brass, aluminium, Titanium Zinc, Nickel, bimetal,,) with AGC outputs, thickness range 0 - 3,5 mm .
To enhance strip thickness accuracy and to improve the mass flow of the head end part of a strip in the 7-stand finishing mill using a hot strip measurement system, this study is being performed In this paper, the speed measurement system layout and the applications of measured strip speed incluing a neural network for predicting a forward .
Infrared sensors measure strip and sheet temperature so that rolling mill stands can be efficiently set to match the steel’s temperature Sensors can be used to detect the presence of hot metal and accurately time the roll stand operation Pyrometers can be used to measure the roll temperature as water cools the roll during the quenching process
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 system for strip rolling mills
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-
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 ,
nology for hot strip rolling mills based on distributed agents is presented aimed to the diagnosis of hot strip rolling mills with controllers In the operation of hot strip mills, human operators try to maintain rolling conditions in an appropriate situation To help the operators, it is needed to build an in-
Typical processing strip thickness: 0,15 to 8 mm Typical coil weight: 5 to 15 Ton; Skin Pass Mills Four High unidirectional Skin Pass Mills INCO manufacture either skin pass mills for Hot Rolled black material or for Cold Rolled or Galvanized material Mills can be complete or be installed in continuous treatment line Strip width up to 1800 mm