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CHAPTER PAGE I The MetalCasting Industry
Materials for the Foundry
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air furnace alloy cast alloys aluminum amount annealing austenite baking bearing metals binders bronze cast iron cast metals cementite cent silicon chromium coke coke bed combined Company Fig constituents cooling cope copper core sand Courtesy crucible cupola charges cupola furnace degrees F diameter drag electric furnace elements equipment ferrosilicon fire clay flask foundry fuel gases grains graphite gray cast iron gray iron hardness high temperatures inches ladle lower malleable iron castings manganese manganese bronze manufacturer materials melting metal castings metal charge metal mixtures method molding sand molten metal molybdenum nickel non-ferrous obtained operation oven oxide pattern pearlite permeability phosphorus pig iron pounds pouring pressure produced proportion rammed refractories removed resistance risers scrap metals sections shown in Fig silica silicon content slag solidifies specifications steel castings steel scrap sulphur surfaces tensile strength test bars test specimens thermit tion total carbon Trans tuyeres usually weight welding