Transcription of Refractory Degradation in Glass tank Melters. A …
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Refractory Degradation in Glass tank Melters. A …
CER MICA 43 (283-284) 1997178 INTRODUTIONThe major objective in Glass tank melters is to optimize theentire process by reducing the maximum temperature of melting,improving Refractory performance and/or improving melter fuelefficiency. The required characteristics of refractories used in meltersare: thermal shock resistance, corrosion resistance, controlledexpansion behavior, low thermal conductivity, and adequate corrosion of the refractories in the melter may be due tobatch carryover (lime, soda, fluorides, lead oxide, borax, silica, otherglass constituents), volatile fluxes ( , volatile alkali oxidespenetrating pores, where solid, liquid, and gas coexist), and meltattack, mainly at the metal line. Erosion often follows the initialcorrosion, washing away Refractory grains after the original bondhas dissolved.
178 CERÂMICA 43 (283-284) 1997 INTRODUTION The major objective in glass tank melters is to optimize the entire process by reducing the maximum temperature of melting, improving refractory performance and/or improving melter fuel
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