Process Control in Hot Strip Mill | Industrial Efficiency,
Process Control in Hot Strip Mill. Improved process control of the hot strip mill may lead to indirect energy savings through reduced product rejects, improved productivity, and reduced down time. The primary aim is to control the oxygen level, and hence optimize the combustion in the furnace, especially as the load of the furnace may vary over,State of the art in hot rolling process control,,01.09.2001· The process technology of hot strip mill has matured; however, the development of advanced control in this area is still active, for the reason that the demand to improve quality (dimensional accuracy, mechanical properties and surface properties) has become increasingly severe. Furthermore, the market needs for high tensile and ultrathin gauge hot strip have been increasing recently. In orderHot Strip Mill - an overview | ScienceDirect Topics,Hot Strip Mill. HSMM is one of several commercially licensed technologies developed under AISIs advanced process control programme, a collaborative effort among steelmakers and the U.S. Department of Energy to create breakout steel technologies. From: Primer on Flat Rolling (Second Edition), 2014. Related terms: Austenite; Hot Rolling; Coiling TemperatureState of the art in hot rolling process control,,The complex control systems have been applied to hot rolling processes and, now, the control area covers the whole line. The process technology of hot strip mill has matured; however, the development of advanced control in this area is still active, for the reason that the demand to improve quality has become increasingly severe.Looper and tension control in hot rolling mills: A survey,,01.07.2007· The role of a hot strip mill process is to roll the slabs produced in a continuous casting process and produce strips of thickness 0.8–20 mm. Fig. 1 shows a typical layout of a hot strip mill. Slabs are heated up to around 1200 °C in reheating furnaces and then rolled on two reversing roughing mills which reduce the thickness of bars to around 30 mm.Advanced Process and Quality Control in Hot Rolling Mills,,Advanced Process and Quality Control in Hot Rolling Mills Using Eddy Current Inspection Autor: SVEN KLING Speaker: Markus WITTE PRÜFTECHNIK NDT GmbH Ismaning, Germany +49 89 99 616 152 markus.witte@pruftechnik Abstract Eddy current testing is a common method for the surface inspection of semi-finished products. The general trend today is to perform eddy current testing on hot
Coiling Simulation and Control Method for Hot Strip,
01.09.2006· Downcoiler is one of the major facilities in hot strip mill operation. The key to good coiling is having good equipment, modem control systems, excellent maintenance and an understanding of coiling process. This study aims to develop a program that is useful for simulating coiling process and develop the improved coiling control method. Therefore, the pinching and coiling mechanism of the,Highest performing Hot Strip Mills | Primetals Technologies,Developed out of vast metallurgical know-how and experience in rolling projects, our process control and automation covers the entire process route for Hot Strip Mills. High-performance physical models, combined with neural networks and intelligent technological controls ensure the products’ excellent quality regarding dimensional tolerances and material propertiesFEATURING ROLLING AND PROCESSING - Primetals,hot-rolled strip in the finishing mill of an ESP line. Referred to as “ultra-thin rolling control,” the system is essentially an adapted control concept that has been successfully applied many times in tandem cold mills. When rolling below a certain strip thickness, the control mode is switched from speed control to roll-gap control while the strip tension is kept constant.Optimization and Model of Laminar Cooling Control,01.01.2006· Hot Strip Mill, Panzhihua Iron and Steel (Group) Co, Panzhihua 617062, Sichuan, China] Main cooling velocity section F6 Abstract: The structure of laminar cooling control system for hot rolling was introduced and the control mode, cooling strategy, segment tracking and model recalculation were analyzed. The parameters of air/water cooling models were optimized by regressing the dataThe Hot Rolling Process - California Steel,The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point, then roll them thinner and longer through 12 successive rolling mill stands driven by motors totaling 77,000 hp, and finally coiling up the lengthened steel sheet for transport to the next process. The Hot Mill rolls slabs weighing up to 30 tons between 30” and 74,Development of camber and steering control system in,19.09.2014· Abstract: Camber and off-center in hot strip rolling process cause various problems including clogging, defects on the strip, and telescope phenomenon in a coil. To reduce camber and prevent off-center, we propose the integrated camber and steering control system based on adjusting roll gap level by previously designed mathematical model.
Development of Shape Process Control System in Hot
In the process of hot strip rolling, accurate and efficient shape process control system is an important factor to ensure strip with good shape. This paper, based on advanced control concept and optimization mathematical model, aimed at Jingtang 1580 hot strip rolling project, developed advanced shape control system. Among them, the HPCS process control...A SURVEY OF THE LOOPER-TENSION CONTROL TECHNOLOGY IN HOT,,Abstract: Looper and tension control is important in hot strip mills because it affects the strip quality as well as strip threading. Moreover, the most difficult challange in the controller design and control performance comes from the interaction between looper angle and strip tension. Disturbances from several sources also cause a deterioration in control performance, and thus they should,Advanced Process and Quality Control in Hot Rolling Mills,,Advanced Process and Quality Control in Hot Rolling Mills Using Eddy Current Inspection Autor: SVEN KLING Speaker: Markus WITTE PRÜFTECHNIK NDT GmbH Ismaning, Germany +49 89 99 616 152 markus.witte@pruftechnik Abstract Eddy current testing is a common method for the surface inspection of semi-finished products. The general trend today is to perform eddy current testing on hotSHAPE AND PROFILE CONTROL FOR HOT STRIP,N2 - A computer control system for the concurrent control of shape and profile of strip from the head to the tail end in the finishing train of a hot strip mill has been developed and applied to the tandem six-high mill at Yawata Works and pair-crossed roll mill at Hirohata Works. Before designing the computer control system, a strip rolling simulator for a tandem mill was developed, the,Rolling of hot strip and strip defects – IspatGuru,14.01.2017· Control of strip thickness and cross-section is a real challenge in a hot strip rolling mill. In order to continuously monitor the thickness of strip being rolled, x-ray or gamma ray sensors are used. Precise control of gauge of rolled strip can be done by adjusting the roll gap. Gauge control in hot strip rolling mills is achieved through measurement of strip thickness using x-ray gauge and,Hot strip mills (Steel) - SMS group,You'll appreciate X-Roll ® hot strip mills from SMS group as all-round plants for high-quality hot strip. They are designed to produce flat steel from thin strip with a minimum final gauge of 1.2 millimeters to high-strength pipe steels up to 25.4 millimeters thick, including stainless steel grades.
Rolling Technology for Thin Steel Strip in Hot Strip Mill,
Thin steel strip rolling performance in the hot strip mill train has been investigated, mainly the metallurgical microstructure. A compact hot mill train producing ordinary steel strip with 1.2 mm final thickness was assumed, and the characteristics were theoretically calculated and analyzed. Strip temperature drop is large due to the thin thickness causing higher flow stress and higher,Hot Rolling Mill Hydraulic Gap Control (HGC) thickness,,Hot Rolling Mill Hydraulic Gap Control (HGC) thickness control improvement Peter Kucsera*,, to the given process and the available measurements. 1.1 Mill Stretch Compensation As the strip passes between the work rolls, the thickness is reduced. The rolling force depends on the thickness reduction, on the characteristics of the rolled material, on the friction conditions, and on further,Process control in the hot strip mill – impedance,,Davis, C. L. and Dickinson, S. J. and Peyton, A. J. (2005) Process control in the hot strip mill – impedance spectroscopy for remote analysis of steel microstructures. Ironmaking and Steelmaking, 32 (5). pp. 381-384. ISSN 1743-2812 Full text not available from this repository.Experimental Study and Application of Process Control,The performance of hot strip mill depends on the cooling process after hot rolling. One important point of improving the technology of controlled cooling after rolling is understanding the effect of process parameters. Heat transfer coefficient is a significant physical parameter during the cooling process. However, there are a lot of difficulties to...Development of Cooling Process Control Technique in,In order to ensure required mechanical properties of steel strip, various innovations in the cooling process control on the run-out table of a hot strip mill were actively promoted. The recent progress of process mathematical model and the new cooling strategy and equipment were discussed. The computer control system of high performance was introduced.Flatness control of strip in continuous hot rolling processes,tuning PI flatness control, Hot rolling processes Abstract In order to improve the flatness of hot rolled strip in hot strip finishing mills, a novel segmented looper system is developed, which called the Flatness Sensing Inter-stand Looper (FlatSIL) system. The FlatSIL system measures the tension along the direction of the strip width by using segmented rolls, and the tension profile is,
hot strip mill process flow chart
hot strip mill process flow chart. AS a leading global manufacturer of crushing and milling equipment, we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete stone crushing plant.Finishing Mill - an overview | ScienceDirect Topics,For a modern hot strip mill, process control is fully computerized, so the properties of the final product may be precisely controlled. The objectives of subsequent cold rolling include the production of sheets possessing high quality surfaces and accurate and consistent dimensions in addition to high speeds, required by the increasing demands for high rates of production. 1.5.1. The hot,Properties of Hot Rolled Strip Obtained By Calculation or,,are the basis for the control-system of the following pickling process to set up adequate process parameters in order to guarantee the required surface quality and maximal productivity. 2. The Evolution of Microstructure in the Hot Rolling Process The layout of the hot strip mill of voestalpine Stahl GmbH is shown in Fig. 1. Slabs are heated to rolling temperature in the reheating furnace,hot strip mill process flow chart diagram,Roll Mill Heat Flow Diagrams. home products two roll mill heat flow diagrams we are the leading service contact supplier paper mill process, piping and piping guide: paper making. roll selection for hot plate & strip mills vertical mill 2hi rough mill 4hi .rolling and steps in rolling,is the main metal working process and offers itself to mass production. close control of the process.rolling,Fundamentals of Roll Cooling and Control of Flatness at,,Because of the current demands on mills to process much lighter exit gauges from increased incoming hot strip thickness, much larger reductions are necessary on individual mill stands, such high reductions at a nominal width result in a larger area of contact with corresponding higher rolling force, friction and heat generation (see Fig 1 below “Area of Contact”). 1. HEAT GENERATION IN THE,Technical Report UDC 621 . 771 . 237 . 016 . 2 : 536 . 53,,ble of a hot strip mill and a control process for precise cooling of the strips using the pyrom-eter. The new strip cooling process was developed and put into commercial practice at Kashima Works and is being expanded to other mills of the company. Technical Report UDC 621 . 771 . 237 . 016 . 2 : 536 . 53 * Senior Researcher, Instrumentation & Control Research Lab., Process Research,
