| 摘要 |
PURPOSE:To provide a castable refractory especially improved in corrosion resistance for the improvement in the durability of a ladle, a secondary refining furnace, etc., used under severe operation conditions in a furnace for production of steel. CONSTITUTION:The highly corrosion-resistant castable refractory capable of being cast and substantially not containing silica comprises 100wt.% of one kind or more of aggregates selected from electromelted alumina, sintered alumina, electromelted spinel, sintered spinel, electromelted spinel, electromelted magnesia and sintered magnesia, 0.05-0.5wt.% of a dispersing agent, 3-10wt.% of calcined alumina having an average particle diameter of <=0.5mum, <=1wt.% (as Cab) of highly pure alumina cement having an Al2O3+CaO content of >=99wt.%, and <=4.5wt.% of water. |
