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Cast1ng of Testbars and the Correlat1on
Salvag1ng and Repa1r of Nonferrous Cast1ngs
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addition alloys aluminium aluminium-bronze bentonite binder brass Brinell hardness Bromsgrove bronze carbon causes centrifugal castings chills clay coal coke composition constituent copper core crucible cupro-nickel defects deoxidation Deoxidise dextrine downgate dried dross drying drysand elevated temperatures ensure feeding foundry freezing range fuel furnace gas porosity gases gating grade grain grain-size greensand gunmetal heat heat-treatment heavy sections hydrogen increase ingates ingots iron lead machining manganese manganese-bronze melting melting-point method mixture moisture content molten metal Monel moulding sand nickel alloys non-ferrous alloys obtained oilsand oxide oxidising oxidising atmosphere oxygen permeability phosphor-bronze phosphorus physical properties plumbago porosity pouring basin pouring speed pouring temperature pressure prevent ramming reduced refractory reverberatory furnaces risers runner sand-cast scrap shows shrinkage silica silicon solid solution solidification strength surface tensile tensile strength test piece test-bars thermal conductivity tin-bronzes tons per sq usually varying virgin metal welding zinc