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Rolling Mill Control

Hot Rolling Mill. Lower Costs, Reduce Time to Market and Improve Quality. During the hot rolling mill process, many factors are taken into account to ensure the final rolled product meets the desired thickness tolerances and ultimate quality requirements...Rolling Mill Tutorial. Before continuing, make sure you have read Chapter 5. System Description. Another control problem (besides the continuous caster) arising in the steel industry is the control of the exit steel thickness in a rolling mill. The diagram below shows the layout of a rolling mill, with thick steel going in one side, and thin ...

Rolling mill simulator A new platform for testing, analysis and optimization of cold rolling mills. Axel Brickwedde, Frank Feldmann, Nicolas Soler The cold rolling of flat metal products especially in tandem or multi-stand mills is a highly complex process where the product quality is influenced by various aspects...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 compensated and a rolling speed dependent, adaptive PI controller is developed to accomplish fine thickness control.

Sheet Rolling Mill processes involve progressive thickness reduction of continuous sheet metal in multiple stages. Some of the control variables of interest are exit thickness, throughput and the tension in the sheet as it passes from one stage to the other. Following page has links to the webinar series that cover plant modeling and controller ...A control system for a rolling mill having a pair of housings, at least two rolls supported at their ends within said housings with a gap defined between said rolls, and a pair of hydraulic cylinders respectively operatively associated with said pair of housings for varying said gap defined between said rolls in order to prevent abnormal ...

3.1 Key Feature of Process Control: Detection of Periodic Defects Rolls and rollers are the most heavily used parts of a rolling mill. Due to wear from contacting hot material with great force, their lifetime is limited. Although rolls are refurbished in the roll shop regularly, they occasionally crack before the end of the usual production cycle...Rolling mill controls generally are concerned with effecting a change in the roll setting as a function of a change in the rolling pressure. Prior patents that, at least in part, envision such a control are U. S. Pat. No. 2,726,541 that issued to R. B. Sims on Dec. 13, 1955 and No. 3,496,743 that issued to M. D. Stone on Feb. 24, 1970.

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...Oil Mist Control For Metal Rolling Mill. Background . A Fortune 500 aluminum company has a plant that produces, among other products, aluminum sheet for end use in transportation, building and construction, recreation, and other markets. During the production process, large slabs of aluminum are rolled under pressure on hot and cold rolling mills.

control for the transfer bar, final strip, and coiler. Based on measurements of pre-strip temperature after the roughing mill, the cooling model predicts subsequent rolling temperatures and controls the speed of the fin-ishing mill with an optimized speed diagram. Since the future rolling speed is thus a known factor, it can...Rolling Mill Control. N-EM-CL Rolling Mill Control. MANUFACTURING SYSTEMS. INNOVATIVE SYSTEMS "N-EM-CL" represents an automatic laminate control system, which produces metallic plates with different thickness. See general description. Catalog Catalog ...

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 …...In this paper a fully neural network-based structure have been proposed to control speeds of rolling stands of a steel rolling mill. The structure has property of …

Considers some of the distributed aspects of the control of modern metal rolling mills. Such mills have a range of ever more ambitious targets, for example product quality, yield, metallurgy and throughput. These aims are supported by high levels of mill sophistication, in terms of plant equipment, instrumentation, actuators and control hardware. In spite of this …...In this paper, a real application of opti- mal control of a hot rolling mill is presented. It is used the state space model formulation in the minimization of the strip thickness variations.

description of the cold rolling process is presented. In Section 3, a mathematical model has been driven for sin-gle-stand cold rolling mill. In Section 4, architecture and learning algorithm Fuzzy Neural Networkof have been presented. In Section 5, thickness control with roll ec-centricity compensation has been proposed. In Section 6...Cold rolling mill control systems By using meticulous auto-control and abundant monitoring and recovery functions, these systems achieve the world's highest quality level as they control steel thickness, tension, and shape through the adoption of advanced control theory while also promoting stable operations.

The high-precision rolling mill speed control system must have higher precision for given regulated power supply. Therefore, when designing the system control scheme and formulating the control circuit, it is necessary to pay great attention to the design and selection of the regulated power supply. The stabilized power supply consisting of ...This website uses cookies to improve your experience while browsing the website. Of these, the cookies that are classified as necessary are stored in your browser, as they are essential for the functioning of the basic functionalities of the website.

Product description. ANDRITZ Sundwig is an experienced rolling mill manufacturer and has built flatness measurement and flatness control systems under licence from the VDEh-Betriebsforschungsinstitut (BFI) for more than 40 years, registered under the …...quality, rolling processes and flexibility, operating and maintenance costs, operational set up, operator intervention in the rolling process, and product storage and logistics. This paper describes how the digitalization of information collection and distribution will lead to a revolution in long-product rolling mill control systems.

Firstly this paper proposes a lumped-parameter hot-rolling mill model. The rolling mill examined is reversible and equipped with an independent speed control …...Rolling Mill Automatic Flatness Control (AFC) System Description The TelePro/SSE AFC system consists of integrated control of work roll bending, HGC tilting, variable roll crown shifting (if available) and multi-zone work roll cooling …

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