| 摘要 |
PURPOSE:To obtain the titled refractory having superior durability owing to superior resistance to corrosion and penetration of slag by blending alumina clinker as a base with spinel clinker in the form of small granules and alumina cement. CONSTITUTION:The titled refractory consists of 50-90wt.% alumina clinker, 5-40wt.% MgO.Al2O3 type spinel clinker of <=1mm diameter and 3-25wt.% alumina cement. The conventional monolithic alumina-spinel refractory has a significant effect especially as the refractory of a ladle, a vacuum degassing furnace, etc., but the effect is not satisfactory yet. Since the titled refractory is rich in alumina clinker and contains spinel clinker in the form of small granules of <=1mm diameter, the resistance to corrosion and penetration of slag is considerably improved and the refractory is >=1.8 times as durable as the conventional refractory. |
