Download or read book Temperature control on hot pots in the aluminium production written by Karsten Sommer and published by diplom.de. This book was released on 2003-08-25 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inhaltsangabe:Introduction: The process of aluminium production is, even nearly 150 years after its discovery, not totally understood. Such a large quantity of factors influences the production process that no standard can be applied on it. In an aluminium reduction plant there are no two identical electrolysis cells. Differences in the start-up and operational disturbances alter the thermal and electrical behaviour of each cell individually. So every cell has to be monitored individually through the continuous changing bath composition and temperature variation. Every cell needs an individual dynamic optimisation of the chemical and thermal input, e.g. the AlF3- and CaF2-addition and the regulation of the anode-cathode distance. Self-regulating mechanism are the melting and freezing of the sidewall ledge, external mechanisms the lifting and lowering of the anodes. In this work a cell control system at Alumar (Brazil) was analysed and improved. The focus laid on controlling the cell temperature through a variation of the anode-cathode distance. The main objective was to analyse the effect and influence of a so-called temperature resistance modifier on hot pots (electrolysis cells). When the temperature of an electrolysis cell exceeds a certain limit, the pot operates outside its optimal working conditions, thus it has to be cooled down. This can happen by reducing the anode-cathode distance and therefore the resistance of the pot. The reduction is controlled by the so-called temperature resistance modifier. The concept of the temperature modifier was introduced less than one year ago at Alumar and is also within the Alcoa group a quite unexplored field. This work is structured in two parts, first an introduction to theory, then the practical part. Chapter 2 gives some general information, from the history of aluminium to a brief overview over the entire production process. Chapter 3 focuses on the general functioning of the aluminium electrolysis. Chapter 4 details the properties of the cryolite bath in the reduction cell and their impacts on the pot operating characteristics. Chapter 5 contains the experimental part of the work. In a first time the quality of the measurement system was tested. Then the relations between temperature resistance modifier and time as well as two bath parameters, the temperature and the ratio were inquired. Thereafter substantial modifications on the program that calculates the temperature modifier were analysed [...]
Download or read book Canadian Foundryman and Metal Industry News written by and published by . This book was released on 1923 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Metal Industry written by and published by . This book was released on 1927 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes monthly "Abstracts of recent literature relating to non-ferrous and ferrous metals."
Download or read book Essential Readings in Light Metals Volume 2 Aluminum Reduction Technology written by Geoff Bearne and published by Springer. This book was released on 2017-03-02 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt: ONE OF A FOUR-BOOK COLLECTION SPOTLIGHTING CLASSIC ARTICLES Landmark research findings and reviews in aluminum reduction technology Highlighting some of the most important findings and insights reported over the past five decades, this volume features many of the best original research papers and reviews on aluminum reduction technology published from 1963 to 2011. Papers have been organized into seven themes: 1. Fundamentals 2. Modeling 3. Design 4. Operations 5. Control 6. Environmental 7. Alternative processes The first six themes deal with conventional Hall-Héroult electrolytic reduction technology, whereas the last theme features papers dedicated to nonconventional processes. Each section begins with a brief introduction and ends with a list of recommended articles for further reading, enabling researchers to explore each subject in greater depth. The papers for this volume were selected from among some 1,500 Light Metals articles. Selection was based on a rigorous review process. Among the papers, readers will find breakthroughs in science as well as papers that have had a major impact on technology. In addition, there are expert reviews summarizing our understanding of key topics at the time of publication. From basic research to advanced applications, the articles published in this volume collectively represent a complete overview of aluminum reduction technology. It will enable students, scientists, and engineers to trace the history of aluminum reduction technology and bring themselves up to date with the current state of the technology.
Download or read book Light Metals 2017 written by Arne P. Ratvik and published by Springer. This book was released on 2017-02-10 with total page 1385 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Light Metals symposia at the TMS Annual Meeting & Exhibition present the most recent developments, discoveries, and practices in primary aluminum science and technology. The annual Light Metals volume has become the definitive reference in the field of aluminum production and related light metal technologies. The 2017 collection includes papers from the following symposia:Alumina and BauxiteAluminum Alloys, Processing, and CharacterizationAluminum Reduction TechnologyCast Shop TechnologyCast Shop Technology: Recycling and Sustainability Joint SessionElectrode TechnologyThe Science of Melt Refining: An LMD Symposium in Honor of Christian Simensen and Thorvald Abel Engh
Download or read book Light Metals 2015 written by Margaret Hyland and published by Springer. This book was released on 2016-12-20 with total page 1174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Light Metals symposia are a key part of the TMS Annual Meeting & Exhibition, presenting the most recent developments, discoveries, and practices in primary aluminum science and technology. Publishing the proceedings from these important symposia, the Light Metals volume has become the definitive reference in the field of aluminum production and related light metal technologies. The 2015 collection includes papers from the following symposia: 1.Alumina and Bauxite 2.Aluminum Alloys: Fabrication, Characterization and Applications 3.Aluminum Processing 4.Aluminum Reduction Technology 5.Cast Shop for Aluminum Production 6.Electrode Technology for Aluminum Production 7.Strip Casting of Light Metals
Download or read book Light Metals 2024 written by Samuel Wagstaff and published by Springer Nature. This book was released on 2024 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zusammenfassung: The Light Metals symposia at the TMS Annual Meeting & Exhibition present the most recent developments, discoveries, and practices in primary aluminum science and technology. The annual Light Metals volume has become the definitive reference in the field of aluminum production and related light metal technologies. The 2024 collection includes contributions from the following symposia: · Alumina & Bauxite · Aluminum Alloys: Development and Manufacturing · Aluminum Reduction Technology · Electrode Technology for Aluminum Production · Melt Processing, Casting and Recycling · Scandium Extraction and Use in Aluminum Alloys
Download or read book Light Metals 2011 written by Stephen Lindsay and published by Springer. This book was released on 2016-12-23 with total page 1164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Light Metals symposia are a key part of the TMS Annual Meeting & Exhibition, presenting the most recent developments, discoveries, and practices in primary aluminum science and technology. Publishing the proceedings from these important symposia, the Light Metals volume has become the definitive reference in the field of aluminum production and related light metal technologies. Light Metals 2011 offers a mix of the latest scientific research findings and applied technology, covering alumina and bauxite, aluminum reduction technology, aluminum rolling, cast shop for aluminum production, electrode technology, and furnace efficiency.
Download or read book Metal Industry and the Iron Foundry written by and published by . This book was released on 1922 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Essential Readings in Light Metals Volume 4 Electrode Technology for Aluminum Production written by Alan Tomsett and published by Springer. This book was released on 2016-12-27 with total page 1212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This compilation is the most comprehensive historical collection of papers written on primary aluminum science and technology. It is a definitive reference in the field of aluminum production and related light metals technologies and contains a strong mix of materials science and practical, applied technology. Written for materials scientists and engineers, metallurgists, mechanical engineers, aerospace and automobile engineers, electrical and electronics engineers, this volume is a valuable resource for the global aluminum and light metals industries.
Download or read book The Mechanical World written by and published by . This book was released on 1914 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Essential Readings in Light Metals Electrode Technology for Aluminum Production written by John A. Johnson and published by John Wiley & Sons. This book was released on 2013-04-03 with total page 1222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This compilation is the most comprehensive historical collection of papers written on primary aluminum science and technology. It is a definitive reference in the field of aluminum production and related light metals technologies and contains a strong mix of materials science and practical, applied technology. Written for materials scientists and engineers, metallurgists, mechanical engineers, aerospace and automobile engineers, electrical and electronics engineers, this volume is a valuable resource for the global aluminum and light metals industries.
Download or read book Machinery and Production Engineering written by and published by . This book was released on 1921 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiometric Temperature Measurements written by and published by Academic Press. This book was released on 2009-11-18 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the practice of radiation thermometry, both at a primary level and for a variety of applications, such as in the materials processing industries and remote sensing. This book is written for those who will a) apply radiation thermometry in industrial practice b) use radiation thermometers for scientific research, c) the radiation thermometry specialist in a national measurement institute d) developers of radiation thermometers who are working to innovate products for instrument manufacturers and e) developers non-contact thermometry methods to address challenging thermometry problems. The author(s) of each chapter were chosen from a group of international scientists who are experts in the field and specialist(s) on the subject matter covered in the chapter. A large number of references are included at the end of each chapter as a resource for those seeking a deeper or more detailed understanding. This book is more than a practice guide. Readers will gain in-depth knowledge in: (1) the proper selection of the type of thermometer; (2) the best practice in using the radiation thermometers; (3) awareness of the error sources and subsequent appropriate procedure to reduce the overall uncertainty; and (4) understanding of the calibration chain and its current limitations. - Coverage of all fundamental aspects of the radiometric measurements - Coverage of practical applications with details on the instrumentation, calibration, and error sources - Authors are from the national labs internationally leading in R&D in temperature measurements - Comprehensive coverage with large number of references
Download or read book Occupational Outlook Handbook written by and published by . This book was released on 1980 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Electrical Review written by and published by . This book was released on 1917 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Foundry Trade Journal written by and published by . This book was released on 1924 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
