Download or read book Refractories for Aluminum written by Andrey Yurkov and published by Springer. This book was released on 2017-05-05 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book details the rigorous requirements for refractories designed for aluminium metallurgical processes: reduction, cast house, and anode production. The author describes requirements specific to the properties and structure of refractory materials that differentiate it from materials used for ferrous metallurgy, among others. A comparison is drawn between the properties and structure of refractories and carbon cathode materials from different points of view: from the perspective of physical chemistry and chemical interactions during the metallurgical process and from the aspect of designing reduction pots and furnaces to accommodate the lifetime of metallurgical aggregates that are a part of aluminum refractory processes.

Download or read book Refractories for Aluminium written by Andrey Yurkov and published by Springer. This book was released on 2014-12-15 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book details the peculiarities of the requirements for refractories designed for aluminium metallurgical process: reduction, cast house, and anode production. The author describes requirements specific to the properties and structure of refractory materials that differentiate it from the refractories for ferrous metallurgy and other refractories. A comparison is drawn between the properties and structure of refractories and carbon cathode materials from different points of view: from the point of physical chemistry and chemistry interactions during the metallurgical process and from the point of design of reduction pots and furnaces with the aspect to the service life time of metallurgical aggregates.

Download or read book Evaluation of Refractories for Aluminum Recycling Furnaces written by Edward George Davis and published by . This book was released on 1988 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Refractories for Aluminum written by American Ceramic Society Saint Louis Section and published by . This book was released on 2001 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A P Green Refractory Application in the Aluminum Industry written by A. P. Green Refractories Co and published by . This book was released on 1900 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Refractories for the Next Millennium written by George Oprea and published by Minerals, Metals, & Materials Society. This book was released on 2000 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of papers from the American Ceramic Society's Pacific Coast Regional Basic Science Division and Electronics Division Meeting, held in Bellevue, Washington, October 27 -- 29, 1999. This volume contains the proceedings of the Symposium on Refractories for the Next Millennium - The Ninth Symposium on Refractories for the Aluminum Industry. Papers cover such topics as degradation, corrosion tests, simulation, a new type of insulating dry vibratable, other insulation systems, liquid interactions with refractories, new binding systems, aggregates, additive effects, and recycling refractory material.

Download or read book Facts for Industry written by and published by . This book was released on 1955 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Anti Wetting Additives for Aluminosilicate Refractories in Molten Aluminum Contact Applications written by Devdutt Pramod Shukla and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Aluminosilicate based refractories are widely used in furnace installations for melting aluminum because they are inexpensive, readily available and generally exhibit the properties desired from a refractory material. However, they face severe corrosion and degradation issues due to the extremely reducing nature of molten aluminum alloys. Isothermal static cup testing is widely used as a tool to evaluate the performance of refractories against penetration by molten aluminum alloys. Various testing methods were reviewed and an upgraded static cup test was recommended. Commercially available aluminosilicate refractories were tested using this method and their results were studied in order to understand the corrosion process. Barium sulfate which is widely used as an anti-wetting additive to improve refractory performance by limiting physical contact between molten metal and the refractory, has proved ineffective at temperatures above 1000°C. A literature review suggested that barium sulfate formed barium celsian at high temperatures and that the celsian was responsible for the non-wetting effect. Wetting angle measurements of molten AL 5083 on synthetic celsian discs revealed that barium celsian and strontium celsian were both not wetted by molten aluminum. Static cup tests were performed on aluminosilicate refractories containing barium carbonate and strontium carbonate. These additives led to the in-situ formation of celsian phases within the refractory matrix that led to improved corrosion resistance at 1300°C. Phase analysis revealed that celsian formation suppressed the formation of mullite within refractories, thereby reducing penetration"--Abstract, leaf iv

Download or read book Evaluation of Refractories for Aluminum Recycling Furnaces written by Edward George Davis and published by . This book was released on 1988 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Refractories Manual written by American Foundrymen's Society. Foundry Refractories Manual Committee and published by . This book was released on 1963 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Refractories for Aluminum written by and published by . This book was released on 2001 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Cost Effective Low Permeability Ceramic and Refractory Components for Aluminum Melting and Casting written by Ronald D. Ott and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A recent review by the U.S. Advanced Ceramics Association, the Aluminum Association, and the U.S. Department of Energy's Office of Industrial Technologies (DOE/OIT) described the status of advanced ceramics for aluminum processing, including monolithics, composites, and coatings. The report observed that monolithic ceramics (particularly oxides) have attractive properties such as resistance to heat, corrosion, thermal shock, abrasion, and erosion [1]. However, even after the developments of the past 25 years, there are two key barriers to commercialization: reliability and cost-effectiveness. Industry research is therefore focused on eliminating these barriers. Ceramic coatings have likewise undergone significant development and a variety of processes have been demonstrated for applying coatings to substrates. Some processes, such as thermal barrier coatings for gas turbine engines, exhibit sufficient reliability and service life for routine commercial use. Worldwide, aluminum melting and molten metal handling consumes about 506,000 tons of refractory materials annually. Refractory compositions for handling molten aluminum are generally based on dense fused cast silica or mullite. The microstructural texture is extremely important because an interlocking mass of coarser grains must be bonded together by smaller grains in order to achieve adequate strength. At the same time, well-distributed microscopic pores and cracks are needed to deflect cracks and prevent spalling and thermal shock damage [2]. The focus of this project was to develop and validate new classes of cost-effective, low-permeability ceramic and refractory components for handling molten aluminum in both smelting and casting environments. The primary goal was to develop improved coatings and functionally graded materials that will possess superior combinations of properties, including resistance to thermal shock, erosion, corrosion, and wetting. When these materials are successfully deployed in aluminum smelting and casting operations, their superior performance and durability will give end users marked improvements in uptime, defect reduction, scrap/rework costs, and overall energy savings resulting from higher productivity and yield. The implementation of results of this program will result in energy savings of 30 trillion Btu/year by 2020. For this Industrial Materials for the Future (IMF) project, riser tube used in the low-pressure die (LPD) casting of aluminum was selected as the refractory component for improvement. In this LPD process, a pressurized system is used to transport aluminum metal through refractory tubes (riser tubes) into wheel molds. It is important for the tubes to remain airtight because otherwise, the pressurized system will fail. Generally, defects such as porosity in the tube or cracks generated by reaction of the tube material with molten aluminum lead to tube failure, making the tube incapable of maintaining the pressure difference required for normal casting operation. Therefore, the primary objective of the project was to develop a riser tube that is not only resistant to thermal shock, erosion, corrosion, and wetting, but is also less permeable, so as to achieve longer service life. Currently, the dense-fused silica (DFS) riser tube supplied by Pyrotek lasts for only 7 days before undergoing failure. The following approach was employed to achieve the goal: (1) Develop materials and methods for sealing surface porosity in thermal-shock-resistant ceramic refractories; (2) Develop new ceramic coatings for extreme service in molten aluminum operations, with particular emphasis on coatings based on highly stable oxide phases; (3) Develop new monolithic refractories designed for lower-permeability applications using controlled porosity gradients and particle size distributions; (4) Optimize refractory formulations to minimize wetting by molten aluminum, and characterize erosion, corrosion, and spallation rates under realistic service conditions; and (5) Scale up the processing methods to full-sized components and perform field testing in commercial aluminum casting shops.

Download or read book Handbook of Industrial Refractories Technology written by Stephen Caniglia and published by William Andrew. This book was released on 1992-12-31 with total page 651 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encompasses the entire range of industrial refractory materials and forms: properties and their measurement, applications, manufacturing, installation and maintenance techniques, quality assurance, and statistical process control.

Download or read book Evaluation of Refractories for Aluminum Recycling Furnaces written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monolithic Refractories written by Subrata Banerjee and published by John Wiley & Sons. This book was released on 1998-09-01 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This valuable handbook details the various monolithic refractories currently in use, and pays particular attention to their chemical and physical behaviors during manufacturing, installation, and the duty cycle. It addresses, from the practitioner's point of view, the critical aspects of reactions involved with the refractory body as it approaches the used temperature with the processing environment. To ensure optimum performance, it describes the application, installation, and design of refractory components. The handbook includes suitable tables and figures, and provides an historical perspective on the evolution of the refractory industry. Practicing ceramic engineers, scientists, raw material suppliers, and research and development personnel in the refractory manufacturing industry will find this book invaluable. Also suitable as a reference for courses in ceramic engineering specializing in refractories.

Download or read book Aluminium Cast House Technology written by Peter R. Whiteley and published by John Wiley & Sons. This book was released on 2013-09-12 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface Tension Forces in Gas Pressurized VDC Casting 195 P.W. Baker and J.F. Grandfield A Total Business Cost Approach 205 Brett T. Aisen and Lachlan J. Massey Optimising Pit Recoveries on 6XXX Extrusion Billet 213 David Latter CAST HOUSE SAFETY Casthouse Safety in 2001 223 John E. Jacoby Improving Safety Performance in an Aluminium Casthouse 233 Barry Taylor CONTINUOUS CASTING An Assessment of the Design of a Gautschi Mould Using Finite Element Analysis 247 Philip Clausen and Geoff Whan Horizontal Direct Chilled (HDC) Casting Technology for Aluminium and Requirements to Metal Cleanliness 253 Franz Niedermair Aspects of Heat Transfer During Production of Remelt Ingot Using Chain Casters 263 J.F. Grandfield, T.T. Nguyen, G. Redden and J.A. Taylor Twin-Belt Casting Technology Update (abstract only) 273 W. Szczypiorski Improving Horizontal Direct Chill Casting 275 Ali A. Dawood HEAT TREATMENT Effect of Homogenisation Temperature and Time on Billet Microstructure and Extruded Properties of Alloy 6061 287 M.J. Couper, M. Cooksey and B. Rinderer Effect of Homogenization on Small Diameter Billets - An Extruder's Experience 297 Hua-Tian Tan and Callistus Hing-Chih Lee Control of Wire Rod Physical Properties Like Ultimate Tensile Strength and Elongation by Close Monitoring of Rolling Energy Input 305 S.D. Chouharia, P.S. Gambhir and M. Dash MAGNESIUM CASTING Aluminium and Magnesium: Equipment and Process Comparison 319 Paul McGlade and Nigel Ricketts RECYCLING Recycling of Contaminated Aluminium Scrap - A Responsible Approach 331 Richard J. Evans REFRACTORY Cast House Refractories - Selection & Evaluation 343 Robert C. Flann PROCESS CONTROL Advances in On-Site Alloy Analysis and Identification (abstract only) 357 Keith Watson Automation Primer for Supervisors and Operators 359 Peter R. Whiteley Author

Download or read book Fundamental Design of Steelmaking Refractories written by Debasish Sarkar and published by John Wiley & Sons. This book was released on 2023-05-09 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamental Design of Steelmaking Refractories Comprehensive up-to-date resource organizing fundamental aspects for the design and performance of steelmaking refractories Fundamental Design of Steelmaking Refractories provides a fundamental understanding in the design of steelmaking refractories, in detail and all in one source, enabling readers to understand various issues including how heat and mass transfer occurs throughout the refractory, how matrix impurity or their contact affects the phases, and how invisible defects form during refractory manufacturing that eventually facilitates to analyze wear, corrosion, and performance of different refractory linings for primary and secondary steelmaking vessels, tundish, and continuous casting refractories. Other specific sample topics covered in Fundamental Design of Steelmaking Refractories include: Phase formations and correlation with impurity effects and refractory processing shortcomings Stress, wear, and corrosion to design refractories and performance statistics of steelmaking refractories Equilibrium and non-equilibrium phases, packing, stress and defects in compaction, and degree of ceramic bonding Thermal and mechanical behavior, flow control mechanisms, continuous casting refractories, and premature refractory damage Precast and purging system, consistent supply and time management, and preventive maintenance in operation With its complete coverage of the subject, Fundamental Design of Steelmaking Refractories fulfills the academic demand of undergraduate, postgraduate, and research scholars of ceramic engineering; metallurgical engineers and mechanical engineering outlets that want to nurture in the refractory and steel sectors will also find value in the text.