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Hot blast stove cone section composite brick
Numbering
Affiliate classification Low-creep high-alumina brick
Weight 0
Product Description
Product Overview:
Low-creep high-alumina brick is brown corundum, andalusite, sillimanite, calcined high alumina bauxite clinker and binder first through granulation and powdering processes, mixed in a certain proportion, and then pressed into a high temperature. Fired products with low creep rate. According to the physical and chemical indicators, it is divided into five brands: DRL-155, DRL-145, DRL-140, DRL-135, and DRL-130. Mainly used in blast furnace hot blast furnace industrial kiln.
Physical and chemical indicators：
| Item | Indicator | ||||
| DRL-155 | DRL-145 | DRL-140 | DRL-135 | DRL-130 | |
| Al2O3 % ≥ | 75 | 65 | 65 | 65 | 60 |
| Apparent porosity % ≤ | 20 | 21 | 22 | 22 | 22 |
| Compressive strength at room temperature Mpa ≥ | 60 | 60 | 55 | 55 | 55 |
| 0.2MpaCreep rate % 50h ≤ |
1550℃ 0.8 |
1450℃ 0.8 |
1400℃ 0.8 |
1350℃ 0.8 |
1300℃ 0.8 |
| Heating permanent line change% |
1500℃×2h -0.2～+0.2 |
1450℃×2h -0.2～+0.2 |
1450℃×2h -0.3～+0.2 |
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