High Alumina Refractory Brick Good Erosion Resistance High Alumina Anchor Brick for Cement Kiln
Introduction of high alumina brick:
high alumina brick is a kind of refractory material,its main composition is Aluminum oxide (Al2O3), which containing is more than 48%.
Application:
It is mainly used in blast furnace, hot blast stove, baking furnace, carbon calciner, coking furnace, teeming ladle, casting system, boiler, cement kiln, glass furnace and all kinds of kiln linings and thermal equipment. It is applied in metallurgy, machinery, construction, casting, ceramics, electricity, petroleum, chemical industry, etc.
Technical Index:
| Item | SK32 SK34 SK36 SK38 High Refractoriness Alumina Refractory Brick |
| DRL-155 | DRL-150 | DRL-145 | DRL-140 | DRL-135 | DRL-130 | DRL-127 |
| Al2O3,% ≥ | 75 | 75 | 65 | 65 | 65 | 60 | 50 |
| Apparent Porosity,% ≤ | 20 | 21 | 21 | 22 | 22 | 22 | 23 |
| Bulk Density, g/cm3 | 2.65-2.85 | 2.65-2.85 | 2.50-2.70 | 2.40-2.60 | 2.35-2.30 | 2.30-2.50 | 2.30-2.50 |
| Compress Strength, Mpa ≥ | 60 | 60 | 60 | 55 | 55 | 55 | 50 |
Creep Rate, %
(0.2Mpa,50h) ≤ | 1550℃
0.8 | 1500℃
0.8 | 1450℃
0.8 | 1400℃
0.8 | 1350℃
0.8 | 1300℃
0.8 | 1270℃
0.8 |
| Permanent Linear Change % | 1550℃,2h | 0.1-0.2 | 0.1-0.2 | 0.1-0.2 | -- | -- | -- | -- |
| 1450℃,2h | -- | -- | -- | 0.1-0.2 | 0.1-0.4 | 0.1-0.4 | 0.1-0.4
|
Quality Assurance:
The process from raw to product are strictly tested by equipment.
1. Inspection and Control of incoming raw materials: according to the chemical content,raw materials are classified into different levels to ensure quality of brick first.
2. Inspection and control of the process: during the production,every brick will be weighed twice strictly to reduce the error of weight .
3. Quality audit by quality management: inspection of product standardization of quality of each product by process control and experimentation, taking corrective measures timely whenever deviations are noted.
4. Before delivery, the inspectors will inspect the size,appearance, physical and chemical properties of brick again in factory.
