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The Use of Laboratory High Frequency Induction Furnaces

Description: Equations are derived for the rates of heating of objects in induction furnaces and for the maximum temperatures attainable. The equations are primarily useful in designing conducting crucibles, shells, and cylinders so as to increase the power input and decrease heat losses. A very brief treatment is given of the factors which influence the current in the induction coil. The performances of various induction furnaces are compared.
Date: April 3, 1950
Creator: Brewer, Leo, 1919-2005
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Progress Report for the Month of April, 1947

Description: This report covers progress in chemical and spectrographic analysis, chemical work, beta-counting methods of analysis, and ore-dressing and pyrometallurgical studies.
Date: April 30, 1947
Creator: Center, E. J.; Nelson, H. R.; Pray, H. A. & Richardson, A. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Glovebox heat test.

Description: An existing argon atmosphere glovebox enclosure was to be refurbished for contaminated operations with a large, high temperature induction furnace. Thermal modeling indicated that glovebox temperatures would be high but acceptable without active cooling, but there were significant concerns that the analysis was inadequate and active cooling would be required. In particular, radiant heating of the glovebox walls by the furnace and pressure control system performance were concerns the thermal mod… more
Date: August 21, 2002
Creator: Bushnell, C. G.; Rigg, R. H. & Solbrig, C. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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AISI/DOE Technology Roadmap Program: Removal of Residual Elements in The Steel Ladle by a Combination of Top Slag and Deep Injection Practice

Description: The objective of this work was to determine if tin could be removed from liquid steel by a combination of deep injection of calcium and a reducing top-slag practice. The work was carried out in three stages: injection of Ca wire into 35 Kg heats in an induction furnace under laboratory condition; a fundamental study of the solubility of Sn in the slag as a function of oxygen potential, temperature and slag composition; and, two full-scale plant trials. During the first stage, it was found that … more
Date: August 31, 2001
Creator: Street, S.; Coley, K.S. & Iron, G.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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TORO II simulations of induction heating in ferromagnetic materials

Description: TORO II is a finite element computer program that is used in the simulation of electric and magnetic fields. This code, which was developed at Sandia National Laboratories, has been coupled with a finite element thermal code, COYOTE II, to predict temperature profiles in inductively heated parts. The development of an effective technique to account for the nonlinear behavior of the magnetic permeability in ferromagnetic parts is one of the more difficult aspects of solving induction heating pro… more
Date: September 1, 1997
Creator: Adkins, D. R.; Gartling, D. K.; Kelley, J. B. & Kahle, P. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A path to higher Q0 with large grain niobium cavities

Description: The improvement of the quality factor Q{sub 0} of superconducting radio-frequency (SRF) cavities at medium accelerating gradients ({approx} 20 MV/m) is important in order to reduce the cryogenic losses in continuous wave accelerators for a variety of applications. In recent years, SRF cavities fabricated from ingot niobium have become a viable alternative to standard high-purity fine-grain Nb for the fabrication of high-performing SRF cavities with the possibility of significant cost reduction.… more
Date: July 1, 2012
Creator: Pashupati Dhakal, Gianluigi Ciovati, Ganapati Rao Myneni
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Mobile Melt-Dilute Technology Development Project FY 2005 Test Report

Description: The adaptation of Melt-Dilute technology to a mobile and deployable platform progressed with the installation of the prototype air-cooled induction furnace and power generator in an ISO cargo container. Process equipment tests were conducted in FY’05 on two fronts: the melt container and its associated hardware and the mobile furnace and generator. Container design was validated through tests at elevated temperature and pressure, under vacuum, and subjected to impact. The Mobile Melt-Dilute (MM… more
Date: January 1, 2006
Creator: Sell, David A. & Fisher, Donald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Application of Phosphor Thermometry to a Galvanneal Temperature Measurement System

Description: The Galvanneal Temperature Measurement System (GTMS) was developed for the American Iron and Steel Institute by the Oak Ridge National Laboratory through a partnership with the National Steel Midwest Division in Portage, Indiana. The GTMS provides crucial on-line thermal process control information during the manufacturing of galvanneal steel. The system has been used with the induction furnaces to measure temperatures ranging from 840 to 1292 F with an accuracy of better than {+-}9 F. The GTMS… more
Date: June 1, 1999
Creator: Beshears, D. L.; Allison, S. W.; Andrews, W. H.; Cates, M. R.; Grann, E. B.; Manges, W. W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Induction Furnace Testing of the Durability of Prototype Crucibles in a Molten Metal Environment

Description: Engineered ceramic crucibles are commonly used to contain molten metal. Besides high temperature stability, other desired crucible characteristics include thermal shock resistance, minimal reaction with the molten metal and resistance to attack from the base metal oxide formed during melting. When used in an induction furnace, they can be employed as a “semi-permanent” crucible incorporating a dry ram backup and a ceramic cap. This report covers several 250-lb single melt crucible tests in an a… more
Date: 2005-09~
Creator: Jablonski, Paul D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Anisotropic porous metals production by melt processing

Description: The collapse of the Soviet Union has left many of its scientific institutes and technical universities without their traditional backbone of financial support. In an effort to stem the export of science to nations advocating nuclear proliferation, and to acquire potentially useful technology, several US government-sponsored programs have arise to mine the best of former USSR scientific advances. In the field of metallurgy, the earliest institutes to be investigated by Sandia National Laboratori… more
Date: February 1, 1997
Creator: Shapovalov, V.; Boiko, L.; Baldwin, M. D.; Maguire, M. C. & Zanner, F. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Galvanneal Thermometry with a Thermographic Phosphor System

Description: The accurate determination of temperature of galvanneal sheet emerging from a zinc bath is a challenging process measurement. The line moves at high speeds, up to 900 feet per minute, and the emissivity varies widely as it moves through the radio-frequency (RF) induction heating ovens and subsequently cools. This presents a great source of error if the pyrometric approach is used since the accuracy is sensitive to emissivity variation. This problem has been circumvented by an approach described… more
Date: December 31, 1997
Creator: Manges, W.W., Allison, S.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A simplified thermal analysis of an inductively heated casting furnace

Description: A simplified thermal analysis technique was developed to analyze an inductively heated casting furnace. Initial operation of the vacuum casting furnace indicated that the outer shell of the vessel was exceeding the temperature design limit. The casting furnace is very complex and not easily modeled in a short period of time through the use of general purpose heat transfer codes. The model took into consideration conduction, natural convection, phase change, radiation heat transfer, and inductio… more
Date: December 31, 1995
Creator: Clarksean, R. & Solbrig, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Prevention of Porosity Formation and Other Effects of Gaseous Elements in Iron Castings

Description: Iron foundries have observed porosity primarily as interdendritic porosity in large freezing range alloys such as Ni-Hard I and hypoeutectic high Cr alloys or pinholes and fissure defects in gray and ductile irons. For most iron foundries, porosity problems occur sporadically, but even occasional outbreaks can be costly since even a very small amount of porosity can significantly reduce the mechanical properties of the castings. As a result when porosity is detected, the castings are scrapped a… more
Date: April 1, 2005
Creator: Center, Albany Research
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Process for alloying uranium and niobium

Description: Alloys such as U-6Nb are prepared by forming a stacked sandwich array of uranium sheets and niobium powder disposed in layers between the sheets, heating the array in a vacuum induction melting furnace to a temperature such as to melt the uranium, holding the resulting mixture at a temperature above the melting point of uranium until the niobium dissolves in the uranium, and casting the uranium-niobium solution. Compositional uniformity in the alloy product is enabled by use of the sandwich str… more
Date: December 31, 1990
Creator: Holcombe, Cressie E.; Northcutt, Walter G.; Masters, David R. & Chapman, Lloyd R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Liquid Metal Processing and Casting Experiences at the U.S. Department of Energy's Albany Research Center

Description: In this paper we will discuss some of the early pioneering work as well as some of our more recent research. The Albany Research Center (ARC) has been involved with the melting and processing of metals since it was established in 1942. In the early days, hardly anything was known about melting refractory or reactive metals and as such, virtually everything had to be developed in-house. Besides the more common induction heated air-melt furnaces, ARC has built and/or utilized a wide variety of fu… more
Date: September 1, 2005
Creator: Jablonski, Paul D. & Turner, Paul C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Engineering techniques to obtain uniform heating of spherical metal objects in an induction furnace

Description: This report discusses the design, construction, and operation of furnace for the purpose of uniformly heating spherical metal test objects to temperatures near 1200{degree}C. This is accomplished while maintaining overall object temperature uniformity of <10{degree}C.
Date: August 1, 1993
Creator: Wilson, D. M.; Bishop, D. O.; Green, R. A. & Teruya, A. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radioactive scrap metal decontamination technology assessment report

Description: Within the DOE complex there exists a tremendous quantity of radioactive scrap metal. As an example, it is estimated that within the gaseous diffusion plants there exists in excess of 700,000 tons of contaminated stainless steel. At present, valuable material is being disposed of when it could be converted into a high quality product. Liquid metal processing represents a true recycling opportunity for this material. By applying the primary production processes towards the material`s decontamina… more
Date: April 1, 1996
Creator: Buckentin, J.M.; Damkroger, B.K. & Schlienger, M.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Preparation of Uranium

Description: The method used for the preparation of uranium metal in a fused state was reduction of uranium chloride with calcium in a refractory-lined bomb. The reaction was started by externally heating the bomb with a gas flame. The metal was obtained in a solid chunk which was covered with a layer of fused calcium chloride. The metal obtained by this process had a density of 17.6 which on remelting in a vacuum induction furnace rose to 18.8. The melting temperature of the metal was estimated to be no gr… more
Date: August 26, 1948
Creator: Rodden, Clement J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Feasibility analysis of recycling radioactive scrap steel

Description: The purpose of this study is to: (1) establish a conceptual design that integrates commercial steel mill technology with radioactive scrap metal (RSM) processing to produce carbon and stainless steel sheet and plate at a grade suitable for fabricating into radioactive waste containers; (2) determine the economic feasibility of building a micro-mill in the Western US to process 30,000 tons of RSM per year from both DOE and the nuclear utilities; and (3) provide recommendations for implementation… more
Date: September 1, 1995
Creator: Nichols, F.; Balhiser, B. & Cignetti, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Metal waste forms from treatment of EBR-II spent fuel.

Description: Demonstration of Argonne National Laboratory's electrometallurgical treatment of spent nuclear fuel is currently being conducted on irradiated, metallic driver fuel and blanket fuel elements from the Experimental Breeder Reactor-II (EBR-II) in Idaho. The residual metallic material from the electrometallurgical treatment process is consolidated into an ingot, the metal waste form (MWF), by employing an induction furnace in a hot cell. Scanning electron microscopy (SEM) and chemical analyses have… more
Date: May 18, 1998
Creator: Abraham, D. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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High-level waste melter alternatives assessment report

Description: This document describes the Tank Waste Remediation System (TWRS) High-Level Waste (HLW) Program`s (hereafter referred to as HLW Program) Melter Candidate Assessment Activity performed in fiscal year (FY) 1994. The mission of the TWRS Program is to store, treat, and immobilize highly radioactive Hanford Site waste (current and future tank waste and encapsulated strontium and cesium isotopic sources) in an environmentally sound, safe, and cost-effective manner. The goal of the HLW Program is to i… more
Date: February 1, 1995
Creator: Calmus, R. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Consolidation of cladding hulls from the electrometallurgical treatment of spent fuel.

Description: To consolidate metallic waste that is residual from Argonne National Laboratory's electrometallurgical treatment of spent nuclear fuel, waste ingots are currently being cast using an induction furnace located in a hot cell. These ingots, which have been developed to serve as final waste forms destined for repository disposal, are stainless steel (SS)-Zr alloys (the Zr is very near 15 wt.%). The charge for the alloys consists of stainless steel cladding hulls, Zr from the fuel being treated, nob… more
Date: April 10, 1998
Creator: Keiser, D. D. Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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