Friction And The Hot Rolling Of Steel

Author: Vladimir Panjkovic
Editor: CRC Press
ISBN: 1482205890
Size: 14,39 MB
Format: PDF, ePub
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When it comes to metal rolling, understanding and controlling frictional phenomena is essential to improving product and developing a more effective approach to friction reduction. Providing a historical perspective that goes as far back as the days of Leonardo da Vinci and continues up until the present day, Friction and the Hot Rolling of Steel chronicles the fundamental causes of friction. This book includes well-documented, on-site observations in various commercial plants, presents and examines practical problems, and provides a critical analysis of literary data related to the subject. It explains the base mechanisms of friction, and offers insight and instruction on improving the control and understanding of friction in hot strip mills and other industrial plants. The text presents mathematical models of friction in control and general engineering in a way that enables engineers to test and refine them in their plants. Engineers have the ability to use them to control friction and minimize its negative effects, particularly as it relates to energy waste and product defects. Organized into four sections, this book outlines the evolutional concepts of friction, and covers the general phenomena relevant to the rolling of metals. This includes the impact of roughness and velocity, basics of liquid and solid lubrication, mathematical modelling, and the properties of materials that affect friction in steel rolling, such as metals, oxides, and carbides. It connects the theoretical concepts, laboratory-scale observations, and phenomena in other areas of science and engineering to the large-scale industrial process of hot rolling. It also addresses roll properties, oxidation, wear and chemical composition of rolls and their impact on friction, the evolution of friction over schedules and roll campaigns, and mathematical modelling of friction in hot rolling. Friction and the Hot Rolling of Steel contains a large body of technical information that includes various chemical and physical properties of relevant materials, mathematical models, and plant and laboratory observations. It also provides an extensive reference list of sources that address specific problems and interests in more detail. Presents practical problems that help academics and industrial researchers to identify promising new research areas in tribology and metal processing Offers an insight into the principles of the effective research that combines both academic excellence and industrial relevance Illustrates with observations and easy-to-understand analogies, enhancing the understanding and control of the mechanisms that influence friction in industrial plants This text services technical, research, and academic personnel working in steel processing, railway engineering, rolling of other metals, solid lubrication, the automotive industry, and more.

Metal Forming Science And Practice

Author: J.G. Lenard
Editor: Elsevier
ISBN: 9780080536316
Size: 16,46 MB
Format: PDF, ePub, Mobi
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This publication has been written to honour the contribution to science and education made by the Distinguished Professor Emeritus Professor Schey on his eightieth birthday. The contributors to his book are among the countless researchers who have read, studied and learned from Professor Schey's work, which includes books, research monographs, invited papers, keynote papers, scientific journals and conferences. The topics include manufacturing, sheet and bulk metal forming and tribology, amongst others. The topics included in this book include: John Schey and value-added manufacturing; Surface finish and friction in cold-metal rolling; Direct observation of interface for tribology in metal forming; An examination of the coefficient of friction; Studies on micro plasto hydrodynamic lubrication in metal forming; Numerical simulation of sheet metal forming; Geometric and mechanics model of sheet forming; Modelling and optimisation of metal forming processes; The mathematical modelling of hot rolling steel; Identification of rheological and tribological parameters; Oxide behaviour in hot rolling; Friction, lubrication and surface response in wire drawing; and Modelling and control of temper rolling and skin pass rolling.

Hot Rolling Of Steel

Author: William L. Roberts
Editor: CRC Press
ISBN: 9780824713454
Size: 15,36 MB
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Number ten of the Manufacturing Engineering and Material Processing series. Includes one page corrigenda laid-in. 800 illustrations clarifying key points. Thorough account of the hot-rolling process and facilities as well as follow-up treatments given to hot-rolled products. Companion volume to "Cold Rolling of Steel" by William Roberts circa 1978 and number two of the series.

Flat Rolling Fundamentals

Author: Vladimir B. Ginzburg
Editor: CRC Press
ISBN: 9780824788940
Size: 16,15 MB
Format: PDF, Docs
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This volume compiles information from physics, metallurgy, and mechanical and electrical engineering to epitomize the fundamental characteristics of flat rolling steel. Flat Rolling Fundamentals is drawn from in-depth analyses of metal properties and behaviors to technologies in application. The book provides a full characterization of steel, including structure, chemical composition, classifications, physical properties, deformation, and plasticity. The authors present different types of rolling mills and the defining physical analytical parameters.They also discuss the effects of hot rolling on steel and the role of lubrication and thermomechanical treatments to minimize these effects. This book presents qualitative and quantitative advances in cost-effective steel production.

Steel Rolling Technology

Author: Ginzburg
Editor: CRC Press
ISBN: 9780824781248
Size: 12,28 MB
Format: PDF, Mobi
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"This state-of-the-art volume examines steel-rolling technology in a systematic and comprehensive manner--providing an excellent synthesis of current information from three different branches of science--physics, metallurgy, and engineering. "

Primer On Flat Rolling

Author: John G. Lenard
Editor: Newnes
ISBN: 0080994121
Size: 17,40 MB
Format: PDF, ePub, Mobi
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Primer on Flat Rolling is a fully revised second edition, and the outcome of over three decades of involvement with the rolling process. It is based on the author's yearly set of lectures, delivered to engineers and technologists working in the rolling metal industry. The essential and basic ideas involved in designing and analysis of the rolling process are presented. The book discusses and illustrates in detail the three components of flat rolling: the mill, the rolled metal, and their interface. New processes are also covered; flexible rolling and accumulative roll-bonding. The last chapter contains problems, with solutions that illustrate the complexities of flat rolling. New chapters include a study of hot rolling of aluminum, contributed by Prof. M. Wells; advanced applications of the finite element method, by Dr. Yuli Liu and by Dr. G. Krallics; roll design by Dr. J. B. Tiley and the history of the development of hot rolling mills, written by Mr. D. R. Adair and E. B. Intong. Engineers, technologists and students can all use this book to aid their planning and analysis of flat rolling processes. Provides clear descriptions for engineers and technologists working in steel mills Evaluates the predictive capabilities of mathematical models Assignments and their solutions are included within the text

Mathematical And Physical Simulation Of The Properties Of Hot Rolled Products

Author: Maciej Pietrzyk
Editor: Elsevier
ISBN: 9780080525686
Size: 14,79 MB
Format: PDF, Kindle
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The objective of this publication is to comprehensively discuss the possibilities of producing steels with pre-determined attributes, demanded by the customer to fit exacting specifications. The information presented in the book has been designed to indicate the reasons for the expenses and to aid in the process of overcoming the difficulties and reducing the costs. In nine detailed chapters, the authors cover topics including: • steel as a major contributor to the economic wealth of a country in terms of its capabilities and production • current concerns of major steel producers • phenomena contributing to the quality of the product • information concerning the boundary conditions of the rolling process and initial conditions, put to use by mathematical models • the solid state incremental approach and flow formulation • parameters and variables - most of which make use of the exponential nature of phenomena that are activated by thermal energy • the application of three dimensional analysis to shape rolling • the evaluation of parameters by a form of inverse analysis to the flat rolling process • knowledge based modeling, using artificial intelligence, expert systems and neural networks They conclude that when either mathematical or physical modeling of the rolling process is considered and the aim is to satisfy the demands for customers, it is possible to produce what the customer wants, exactly.

The Complete Technology Book On Hot Rolling Of Steel

Author: NIIR Board of Consultants & Engineers
Editor: NIIR PROJECT CONSULTANCY SERVICES
ISBN: 8190568582
Size: 13,90 MB
Format: PDF, Kindle
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The hot rolling technology is the most widely used method of shaping metals and is particularly important in the manufacture of steel for use in construction and other industries. In metalworking, rolling is a metal forming process in which metal stock is passed through a pair of rolls. Rolling is classified according to the temperature of the metal rolled. If the temperature of the metal is above its re crystallization temperature, then the process is termed as hot rolling. The hot mills using plain rolls were already being employed by the end of the seventeenth century. But the industrial revolution in the nineteenth century saw a new horizon in steel making process, with the considerably expanded markets for rods, rails and structural section, provided further impetus to the development of hot rolling. The basic use of hot rolling mills is to shape up the larger pieces of billets and slabs into narrow and desired forms. These metal pieces are heated over their re crystallization temperature and are then moved between the rollers so as to form thinner cross sections. Hot rolling mill thus helps in reducing the size of a metal thereby molding it into the desired form and shape. Rolling mills perform the function to reform the metal pieces such as billet and ingot whilst maintaining its well equipped micro structure into bar, wire, sheet, strip, and plate. Hot rolled products are frequently categorized into plain carbon, alloy, high strength alloy, dual phase, electrical and stainless steels. This book provides a descriptive illustration of pre treatment of hot metal, the basic principles of heat treatment, types of hot rolled products, principles of measurement of rolling parameters, steel making refractories, performance characteristics of transducers, causes of gauge variation , main factors affecting gauge performance, gauge control sensors and actuators, automatic gauge control systems, strip tension control system in cold mills, flat rolling practice cold rolling, pack rolling, steelmaking refractories, refining of stainless steels, special considerations in refining stainless steels etc. This book is a unique compilation and it draws together in a single source technical principles of steel making by hot rolling process up to the finished product. This handbook will be very helpful to its readers who are just beginners in this field and will also find useful for upcoming entrepreneurs, engineers, personnel responsible for the operation of hot rolling mills, existing industries, technologist, technical institution etc.

Oxide Scale Behavior In High Temperature Metal Processing

Author: Michal Krzyzanowski
Editor: John Wiley & Sons
ISBN: 9783527630325
Size: 12,74 MB
Format: PDF, Docs
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The result of a fruitful, on-going collaboration between academia and industry, this book reviews recent advances in research on oxide scale behavior in high-temperature forming processes. Presenting novel, previously neglected approaches, the authors emphasize the pivotal role of reproducible experiments to elucidate the oxide scale properties and develop quantitative models with predictive accuracy. Each chapter consists of a detailed, systematic examination of different aspects of oxide scale formation with immediate impact for researchers and developers in industry. The clear and stringent style of presentation makes this monograph both coherent and easily readable.

Flat Rolled Steel Processes

Author: Vladimir B. Ginzburg
Editor: CRC Press
ISBN: 9781420072938
Size: 16,88 MB
Format: PDF
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Throughout the last two decades, the flat-steel production industry has experienced great success with the introduction of new technologies and manufacturing advances for both hot and cold steel-rolling. These improvements are resulting in significantly reduced production costs and better product quality. Recent consolidation of the steel industry—which has led to improved sharing of technological breakthroughs between plants—is creating an optimal atmosphere for the implementation of advances. An assessment of industry progress, Flat-Rolled Steel Processes: Advanced Technologies details these improvements, assembling input from 62 international contributors specializing in various areas of research and development of steel production technology and manufacturing of flat steel products. It describes the challenges and the latest solutions to problems in four major areas: New concepts and modernization of rolling mills Modeling of flat-rolling processes Measurement, automation, and process control Strip profile and flatness control Written for a broad audience, each chapter familiarizes readers with a different aspect of the latest theoretical and practical developments in the field. With its roots in the series of technical publications that summarize and review manufacturing developments for flat-rolled steel products, this volume explores the significant developments that are modernizing automation, process control, mathematical modeling, and quality-monitoring systems in flat-rolling processes. This includes the introduction of computer-based technology in both new and existing conventional rolling mills. Providing expert insight and analysis related to technological improvements, this book will help readers understand the current state of flat steel production, how it evolved, and its future direction.