| 摘要 |
PURPOSE:To obtain refractories having superior spalling resistance by adding alumina-zirconia material contg. a specified amt. of zirconia to magnesia-chrome aggregate. CONSTITUTION:Alumina-zirconia material having 20-40wt.% ZrO2 content is added to magnesia-chrome aggregate by 1-10wt.% and they are mixed, molded and fired to obtain magnesia-chrome refractories useful as refractories used for an electric furnace, an RH degassing furnace, etc. |
