Download or read book Discharge Behavior in Vacuum Arc Melting written by Floyd William Wood and published by . This book was released on 1961 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating Arc Behavior in a DC Vacuum Arc Remelting Furnace Using Magnetic Flux Density Measurements written by Rigel Woodside and published by . This book was released on 2008 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The behavior of a metal vapor plasma arc in a vacuum arc remelting (VAR) furnace is believed to contribute to the formation of defects in reactive metal and super-alloy ingots. Industry standard instrumentation, which includes electric current and voltage measurements, can asses the stability of an arc but cannot predict the location of an arc. It is known that Maxwell's equations predict a magnetic flux density at a distance from an arc. It is shown that a single arc's location can be uniquely determined in a cross section by using an externally mounted 2-axis Hall Effect magnetic flux density sensor provided that the system's electric current is also measured and the geometry of the VAR furnace is known. The solution is based on the Biot-Savart Law with finite element modeling assisting the analysis. The methodology is validated using controlled, static experiments. The measurement system is deployed on a small scale, experimental VAR furnace to investigate arc behavior. Results from VAR operation show a time averaged arc distribution that does not significantly change over the course of a melt. By comparing the results from multiple sensors, observed arc motions are categorized as being either retrograde or sympathetic. The former is characterized by large periodic motions, and the latter either small random motions or motions associated with an event such as a liquid metal drip short. Significant alternating currents are found to exist in the DC VAR furnace. A magnetostatic single arc model is not sufficient to describe the current distribution in the VAR furnace at an instant but it may be an effective means to detect quasi static non-axisymmetry or slow time varying current profile changes during VAR operation.
Download or read book Report of Investigations written by and published by . This book was released on 1967 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determining Phosphorous in Coal and Coke written by Abraham L. Engel and published by . This book was released on 1961 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Using a Centrifuge for Float and sink Testing Fine Coal written by Eugene Robert Palowitch and published by . This book was released on 1961 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1961 with total page 1878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Model for Molten Pools in Arc Melting written by Floyd William Wood and published by . This book was released on 1968 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Publications written by United States. Bureau of Mines and published by . This book was released on 1960 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bureau of Mines Publications and Articles with Subject and Author Index written by United States. Bureau of Mines and published by . This book was released on 1975 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by and published by . This book was released on 1965 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by United States. Bureau of Mines and published by . This book was released on 1910 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogenation of Coal in the Batch Autoclave written by Charles O. Hawk and published by . This book was released on 1965 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Heat Transfer to Water cooled Copper Crucibles During Vacuum Arc Melting written by Philip G. Clites and published by . This book was released on 1967 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1980 with total page 1284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Entrained bed Carbonization of Highly Fluid Bituminous Coals written by Manuel Gomez and published by . This book was released on 1968 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1961 with total page 1284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Process Development in Removing Sulfur Dioxide from Hot Flue Gases in Four Parts written by Daniel Bienstock and published by . This book was released on 1967 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
