简介:ApplictionofMgO0-Cr2O3brickcomposedofMgO>72%,Cr2O3>14.8%-168.69%,withporosity13%-14%,compressivestrength33.0-43.8MPa,flexurestrength11.9-16.5MPaandrefractorinessunderload≥1750℃inanassemblesnorkelof300tRHfurnaceinBaoskhanIron&SteelCompany(Baosteel)Showedgoodresultsofaverageservicelifeof106.6heats,maximum119heats.Petrologi-calanalysisandvisualexaminationwerealsodonetotheresidualbricktoinvestigatethewearmecha-nism.