刚玉莫来石浇注料是以优质刚玉和莫来石为芯材制成的耐火制品。它们具有耐高温、机械强度高、抗热震性好等特点。适用于要求较高的高温工业场合。
项目 | KRGM-1 | KRGM-2 | KRGM-3 | |
---|---|---|---|---|
Al2O3 ≥ | 70 | 75 | 85 | |
SiO2 ≤ | 25 | 17 | 13 | |
Fe2O3 ≤ | 1 | 1 | 1 | |
体积密度 g/cm3 ≥ | 2.7 | 2.8 | 2.9 | |
0.2MPa 载荷下的折射率 ℃ ≥ | 1450 | 1480 | 1500 | |
抗热震性,次,(900℃,水冷) ≥ | 25 | 25 | 25 | |
最高使用温度 ℃ | 1550 | 1550 | 1600 | |
线性尺寸变化 % ≤ | -0.3 | -0.2 | -0.2 | |
冷压强度 Mpa ≥ | 110℃*24h | 100 | 110 | 120 |
1100℃*3h | 100 | 110 | 120 | |
1400℃*3h | 115 | 120 | 125 | |
MOR ≥ | 110℃*24h | 15 | 15 | 15 |
1100℃*3h | 16 | 17 | 18 | |
1400℃*3h | 17 | 18 | 19 |
1.High Temperature Resistance; 2.Excellent Mechanical Strength; 3.Good Thermal Shock Resistance; 4.Low Thermal Expansion;
Corundum mullite castables are applied in steel – making furnaces to resist molten steel and slag corrosion. In glass – melting kilns, they endure high – temperature glass – making processes. They’re also used in cement rotary kilns to maintain structural stability under high – temperature and mechanical stress.