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A Method to Evaluate Zinc Spelter Cleanliness for Hot-Dip GalvanizingBy Ajay K. Singh
The surface quality demands for galvanized and galvannealed steel sheets by the automotive and appliance industries have been getting increasingly stringent over the past few years. Intensive efforts
Jan 1, 1992
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Numerical Simulation of Transient Fluid Flow and Solidification. Phenomena During Continuous Casting of AluminumBy B. Q. Li
A numerical study of the developing fluid flow and thermal aspects during the staning phase of aluminum continuous casting processes is presented. The deforming finite element method, coupled with a q
Jan 1, 1993
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Recovery Of Iron And Zinc From Blast Furnace And Basic Oxygen Furnace Dusts: A Laboratory InvestigationBy S. M. Hay
The zinc content of blast furnace and basic oxygen furnace dusts is low compared with electric arc furnace dusts and it is generally not economical to treat the dusts to recover zinc. However, they ha
Jan 1, 1994
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The Effect of Anodic Potential on Surface Layers of Chalcopyrite during Ammonia–Ammonium Chloride LeachingBy Xiaoming Huaa
The effect of the anodic polarization on the composition and morphology of the surface layer formed on chalcopyrite during ammonia–ammonium chloride leaching was investigated. The anodic polarization
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Minimization of Dust Generation in Outokumpu Flash SmeltingBy D. M. Jones
Dust generation data have been obtained from 19 industrial Outokumpu flash furnaces. Statistical analyses of the data have been carried out and the most significant factors affecting dust generation e
Jan 1, 1996
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Kinetic Studies of Tank DegassingBy G. A. Irons, D. Guo, D. Angheiina
To produce low-carbon (<30 ppm) steel in the tank degassing process, a ladle of steel with an oxidizing slag is placed in a vacuum tank equipped with bottom bubbling. The kinetics of this process are
Jan 1, 2000
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Vibratory Stress Relief in D-406 Aerospace AlloyBy M. Bilal Khan
Thermal stress relief by means of a typical heat treatment cycle (660oC for one hr) is compared with the one achieved through vibratory stress relief at resonant and multiple resonant frequencies for
Jan 1, 2009
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Modifications To The Process Gas Handling System At Kidd Creek's Copper Smelter (8f2681de-1059-4fd9-9a73-66bd0e09cb25)By R. J. St. Eloi
The Kidd Creek Copper Smelter has been expanded from its original design of 59,000 tonnes of copper per year to over 120,000 tonnes per year .. Modifications to the process gas handling system and aci
Jan 1, 1992
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Sorting Of Aluminum Alloy Scrap By Laser Induced Optical Emission SpectroscopyBy A. Rosenfeld
The feasibility of applying laser induced optical emission spectroscopy to the high speed sorting of mixed alloy aluminum scrap is investigated. The basic spectroscopy for analysing aluminum alloys fo
Jan 1, 1995
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Heavy Metals Removal from Small-Arms Firing Ranges (d57464b2-215f-4c60-8f75-d50df113d8b3)By J. L. Johnson
Remediation of small-arms firing ranges is being investigated by the Naval Civil Engineering Laboratory and the U.S. Bureau of Mines. Scheduled closures of military installations, as well as the manag
Jan 1, 1991
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Interfacial Characteristics of Squeeze-Cast Sic-Reinforced AZ91D Magnesium-Based CompositesBy Graham J. C. Carpenter, Marc Charest, Jason Lo
"The method of producing magnesium-based composites with silicon carbide (SiC) particulates embedded in the matrix of magnesium AZ9I D alloy by the squeeze-casting technique are described. This method
Jan 1, 1996
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Fused Salt Electrorefining of ZincBy Kelly J. Driscoll
Impure zinc (98.5%) was electrorefined to high purity zinc (99.995%) using a fused salt electrolyte of molar composition 1: 1 : 1 :2 ZnCI2:KCl:NaCl:LiCl with a current efficiency of about 90% at 723 K
Jan 1, 1992
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Influences of T6 Treatment on Microstructure and Creep Properties of Ti-6Al-4V AlloyBy Sugui Tian
By means of the T6 treatment, the measurement of creep curves and microstructure observation, the influence of T6 heat treatment on the microstructure and creep properties of Ti-6Al-4V alloy is invest
Jan 1, 2009
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Lithological, Structural, Chemicai and Mineralogical Patterns in a Precambrian Stratiform Gold Occurrence, Yavapai County" ArizonaBy M. M. Swan
A stratiform gold occurrence of Precambrian age located 20 miles southeast of Prescott, Arizona, within the Agua Fria Mining District, displays chemical, mineralogical, structural and lithological pat
Jan 1, 1981
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Sustainable Development Considerations in Copper HydrometallurgyBy Krishna Parameswaran
This paper illustrates sustainability considerations in copper hydrometallurgy using examples of practices at ASARCO LLC, an integrated U.S. primary copper producer. Using the classic Brundtland Commi
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Three-Dimensional Model for Convection in Laser Weld PoolBy Chan. C. L., Zehr. R., M. M. Chen, J. Mazumder
"Two three-dimensional models of a surface tension gradient driven flow during laser surface heating are developed. The first model is based on a perturbation solution. The basic solution corresponds
Jan 1, 1986
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Reactive Diffusion between Silicon and Niobium Carbide: Application to the In-Situ Synthesis of a Silicon Carbide-Niobium Disilicide CompositeBy Y. A. Chang, J. Woodford, C. R. Kao
Reactive diffusion studies between NbC and Si were carried out at 1300 °C under a vacuum of 10-5 torr and a uniaxial pressure of 1 MPa. The annealing time ranged from 8 to 100 hours. The Si used was s
Jan 1, 1996
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The Mineralogy of Dross Produced During the Slow Cooling of Missouri Lead BullionBy Liming Wang
One of the steps in the extractive metallurgy of lead is a refining process called drossing. Hot dross is mixture of impurity compounds that form on the surface during the cooling of lead blast furnac
Jan 1, 1995
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Computer Programs to Load, Calculate, Save and Plot Spectral Reflectance and Quantitative Color Values for Ore MineralsBy Robert C. Laudon
Spectral reflectance data for 335 minerals, including 228 minimum-maximum combinations for anisotropic minerals giving a total of 563 data sets, have been collected from the literature and combined in
Jan 1, 1987
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Characterization of MA-MOX Powders and PelletsBy A. D. Neuman, C. C. Davis, M. R. Lopez, A. C. Martinez, T. A. Nothwang, F. G. Hampel, S. L. Voit
"One of the thrust areas for the Global Nuclear Energy Partnership (GNEP) program is the development of actinide bearing fuels for transmutation in a fast reactor. Mixed Oxide (MOX) fuel has an extens
Jan 1, 2008