Low Creep High Alumina
Super bauxites and corundum mullite are used as main raw materials in production of low creeping high alumina bricks series for hot blast stove. High pressure pressing and sintering at high temperature
make very good results of the products in RUL, creeping rate and thermal shock resistance. It is the first choice for large hot blast stoves.
| Item | Index | |||||||
| DRL-155 | DRL-150 | DRL-145 | DRL-140 | DRL-135 | DRL-130 | DRL-127 | ||
| Al2O3,% | ≥75 | ≥75 | ≥65 | ≥65 | ≥65 | ≥60 | ≥60 | |
| Creeping rate,% (0.2Mpa X50h) | 1550℃ 0.8 | 1550℃ 0.8 | 1450℃ 0.8 | 1450℃ 0.8 | 1350℃ 0.8 | 1350℃ 0.8 | 1270℃ 0.8 | |
| Bulk density,g/cm3 | ≤2.65-2.85 | ≤2.65-2.85 | ≤2.50-2.70 | ≤2.40-2.60 | ≤2.35-2.55 | ≤2.30-2.50 | ≤2.30-2.50 | |
| Linear change on reheating,% | 1550℃X2h | 0 . 1 ～ -0.2 | 0 . 1 ～ -0.2 | 0 . 1 ～ -0.2 | ----- | ----- | ----- | ----- |
| 1450℃X2h | ----- | ----- | ----- | 0 . 1 ～ -0.2 | 0 . 1 ～ -0.4 | 0 . 1 ～ -0.4 | 0 . 1 ～ -0.4 | |
| App. Porosity,% | ≤20 | ≤21 | ≤21 | ≤22 | ≤22 | ≤22 | ≤23 | |
| C.C.S.,Mpa | ≥60 | ≥60 | ≥60 | ≥55 | ≥55 | ≥55 | ≥50 | |