Cast Iron.The AFS A distributed file system for large, widely dispersed Unix and Windows networks from Transarc Corporation, now part of IBM. It is noted for its ease of administration and expandability and stems from Carnegie-Mellon's Andrew File System. AFS - Andrew File System Cast Iron Div.'s presentations addressed multiple topics from thin wall castings to inclusion defects to material strength. In their presentation, "Factors Affecting Microshrinkage Formation in Thin-Wall Ductile Iron Ductile iron, also called ductile cast iron or nodular cast iron, is a type of cast iron invented in 1943 by Keith Millis[1]. While most varieties of cast iron are brittle, ductile iron is much more ductile, as the name implies. " (04-012), J.W. Woolley, M. Liliac, D.M. Stefanescu, Univ. of Alabama, R. Ruxanda, Copeland Corp., and C. Heisser, Magma Foundry Technologies, discussed how thin wall ductile iron (DI) castings can have excellent static mechanical properties. However, mold design greatly influences the formation of microshrinkage, and microshrinkage adversely affects DI's mechanical properties. The authors evaluated the influence of process variables on microshrinkage in thin wall DI castings. Using three different methods to cast test plates, it was found: * when using a feeding system, thicker adjacent sections can easily feed thinner sections of a casting; * when not using feeding, microshrinkage increased with plate thickness; * plates with the cross-pattern casting process experienced no shrinkage. In another thin wall related paper, "Development of In-Mold/In-Filter Inoculation inoculation, in medicine, introduction of a preparation into the tissues or fluids of the body for the purpose of preventing or curing certain diseases. The preparation is usually a weakened culture of the agent causing the disease, as in vaccination against for Thin-Wall Cast Iron" (04-092), Y.S. Lerner, Univ. of Northern Iowa, D. Craig and L. Aubrey, Selee Corp., and T. Margaria and R. Siclari, Pechiney Electrometallurgy Electrometallurgy The branch of process metallurgy dealing with the use of electricity for smelting or refining of metals. The electrochemical effect of an electric current brings about the reduction of metallic compounds, and thereby the extraction of metals , sought to combine in-mold inoculation within the filter lot thin wall gray iron castings. After proceeding with a two-phase experiment involving an inoculant in·oc·u·lant n. See inoculum. pellet in a ceramic loam loam, soil composed of sand, silt, clay, and organic matter in evenly mixed particles of various sizes. More fertile than sandy soils, loam is not stiff and tenacious like clay soils. Its porosity allows high moisture retention and air circulation. fiber and evaluation of the effectiveness of the inoculant filter assembly, it was determined that the inoculants effectively reduced chill and improved the graphite morphology, and the iron surface was found to be very clean. Also, the inoculated iron showed a significant increase in the formation of Type A graphite. |
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