摘要
Application of MgO-Cr2O3 brick compsoed of MgO>72%,Cr2O3>14.8%-16.69%,with porosity 13%-4%,compressive strength 33.0-43.8 MPa ,flexing strength 11.9-16.5 MPa and refractoriness under load≥1750℃ in a assembled snorkel of 300t RH funace in Baoshan Iron & Stel Company (Baosteel) showed good results of average service life of 106.6 heats maximum 119 heats.Petrologi-cal analysis and visual examination were also done on the residual brick to investigate thewear mechanism.
