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Based on a model of microstructure evolution, an appropriate rolling schedule has been worked out to produce ultrafine grained steel (2 to 5 μm) on the hot strip mill. This rolling schedule is ...
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Fig 3 Rolling of thick plate in a plate mill. Prediction of stresses and roll-separating force – Once the spread (the boundary of the deformation zone) has been calculated, this information can be used to predict the stresses and the roll-separating force. The computerized procedure used here is in principle the same as the method described …
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A mathematical model of a strip-looper system of a hot strip tandem rolling mill is developed using Hamilton's principle and the Galerkin weighted residual method.
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Development and application of roll contour configuration in temper rolling mill for hot rolled thin gauge steel strip X D Wang Shougang Research Institute of TechnologyShougang Group, No. 69 Yangzhuang Street, Shijingshan District, Beijing 100043, China Correspondence x_d_wcumt@163
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The actual production data of the 1580 hot strip rolling mill equipped with SVT work rolls showed that the crown C25 of non-oriented silicon steel was reduced by about 5%, the edge drop was ...
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metals and electrical steel grades that find use in the aerospace, automotive, defence, petroleum, chemical, construction, mining and power industries, as well as in various medical, food-equipment, machine and cutting-tool applications. The rolling forces are the highest ever to be applied in a hot-strip rolling mill.
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The roll deformation model of the six-high rolling mill is one of the core models of the strip shape control theory. The influence function method (IFM) is a numerical method applied to solve the roll deformation problem. This study aims to address the problems of slow calculation speed and insufficient calculation accuracy of IFM in …
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The mill is capable of rolling up to 3.5Mt/yr of a broad range of highly diversified stainless and carbon steels, speciality metals and electrical steel grades that find use in the …
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The stable operation of strip rolling mill is the key factor to ensure the stability of product quality. The design capability of existing domestic imported and self-developed strip rolling mills cannot be fully developed, and the frequent occurrence of mill vibration and operation instability problems seriously restrict the equipment capacity and …
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This study considered a four-roller mill of a steel mill hot rolling line of 2250 mm as the research object. From the perspective of fatigue damage, considering the roll wear and using the linear fatigue-damage accumulation theory by Miner, a fatigue-damage prediction model of backup rolls was established.
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Abstract. In order to improve the flatness of hot rolled thin gauge steel strip, a new type of roll contour configuration was developed for a four-high temper rolling mill …
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the multistage character of strip rolling on tandem mills where the strips is being bitten in several stands at the same time, transferring tensions and vibrations from a stand to its neighbours (Section 2.4); ... with a fast speed capable of real-time application in the shape control system, helping to achieve high-quality flat products and ...
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Profile requirements of silicon steel strip are extremely high and the thickness difference of cold-rolled products is usually less than 7 μm, and the profile quality of hot-rolled strip is the key to ensure the thickness difference of cold-rolled products. In order to produce the silicon steel strip with high-precision shape, the concept of quasi …
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The type of application, that differs from mill to mill will have an influence on the lubrication achieved by the emulsion . To ensure good lubrication, the emulsion available at the entry of the roll bite has to be entrained, i.e., the oil droplets have to be captured and drawn into the contact zone. ... After cold rolling, the steel strip is ...
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Professional Mill Roll Manufacturer. Founded in 1990,Shree Dashesh Rolls Inds. mainly produces all kinds of metallurgical rolls for various types of steel, bar, high-speed wire and strip hot and cold plate and strip rolling mills.. we manufacturers Cast steel mill rolls Alloy indefinite chilled cast iron rolls, Alloy chilled cast iron rolls ...
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Aljabri et al [16] has investigated thin strip profile control capability of roll crossing and shifting in cold rolling mill. The increase of the work roll crossing angle would lead to improve the ...
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A multistep prediction model based on neural networks has been established including the effect of steel chemistry, physical rolling parameters and rolling histories for all rolling stands in an industry hot strip mill.
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The steel industry has had a long history of development, yet, despite all the time that has passed, it still demonstrates all the signs of longevity. The steel industry is expanding worldwide. The economic modernization processes in these countries are driving the sharp rise in demand for steel. Rolling is a metal forming process in which metal …
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The strip crown in hot rolling has the characteristics of multivariablity, strong coupling and, nonlinearity. It is difficult to describe accurately using a traditional mechanism model. In this paper, based on the industrial data of a hot continuous rolling field, the modeling dataset of a strip steel prediction model is constructed through the collection …
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Steel Rolling, 2004,3:34-37. GongChangBao: Temperature Model and Its Application in Hot Strip Rolling. Steel Rolling, 2004,3:34-37. LiuYan, SunYiKang and GuanKeZhi: On Temperature Model for ...
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2 Principles and Applications of Metal Rolling (ii) Shape of the rolled product- flat, sections or hollow sections rolling. (iii) Direction of rolling- lengthwise, transverse, and skew rolling. (iv) Mode of rolling mill operation- continuous (unidirectional), and reverse rolling, where direction of rotation of rolls are reversed. When two rolls of equal diameter and with axis …
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Principles and applications of metal rolling / Siddhartha Ray. pages cm Includes bibliographical references and index. Summary: "Discusses the entire gamut of rolling …
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Performance assessment of control systems in rolling mills – application to strip thickness and flatness control. Author links open overlay panel Mohieddine Jelali. ... In a hot strip rolling mill (HSRM) process, the prediction of the steel crown is a key factor in improving the quality of the strip steel. In this paper, a new multibatch ...
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The model can be used to calculate the wear and fatigue damage caused to a roll after rolling a piece of strip steel. The analysis results show that the proposed model optimized the actual ...
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In order to improve the flatness of hot rolled thin gauge steel strip, a new type of roll contour configuration was developed for a four-high temper rolling mill based on the finite element method analysis. The roll contour configuration consists of a variable contact back-up roll contour and a positive crown work roll contour.
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The research results can promote the application of industrial data and machine learning modeling to the actual strip shape control process of hot rolling, and also have important practical value for …
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The book discusses rolling applications of steel blooms, slabs, bars, plates, rods, heavy sections and non-ferrous metals in detail. It covers important rolling process …
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With the increasing demand on higher strip quality, the profile and flatness of hot rolling strips have become subjects of concern, particularly for compact strip product (CSP) hot strip mills. Based on the roll contour, control model, and rolling process, a comprehensive shape control technology is proposed and applied to CSP hot strip mill …
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Application of Adaptive Threading Technique to Hot Strip Mill ... Neural compensation and modelling of a hot strip rolling mill using radial basis function. 2011, Latin American Applied Research. Biography ... Multi-mode acid concentration prediction models of cold-rolled strip steel pickling process. Journal of Process Control, Volume 24 ...
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The Research of the rolling speed influence on the mechanism of strip breaks in the steel rolling process, Materials, 13 (2020) 3509. Article Google Scholar S. Khosravi, A. Afshar and F. Barazandeh, Design of a fuzzy feed-forward controller for monitor HAGC system of cold rolling mill, World Academy of Science, Engineering and …
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