| 摘要 |
PURPOSE: To obtain a castable refractory capable of giving a working body developing few cracks without impairing the operability in its casting work. CONSTITUTION: This castable refractory contains 2-8wt.% of alumina cement and 3-27wt.% of spherical mullite particles <=1mm in diameter composed of >=60wt.% of Al2 O3 and <=40wt.% of SiO2 . |
