Refractory clay brick
|
Refractory clay fire-resistant products are
presented by full assortment line: low-porous aluminous brick, usual
refractory clay brick, and also heat resisting and applied to building
of a blast furnace.
This version of fire-resistant production is applied in building of glass manufacturing, domain, channel, cement furnaces and another heat-technical equipment. |
Chemical compound and physical parameters
| Parameters | Designation | Low-porous aluminous brick | Ordinary aluminous brick | Heat resisting aluminous brick | Brick for a blast furnace | ||||
| DDD | DN-12 | DN-15 | N-1 | N-2a | KN | ZGN-42 | GN-42 | ||
| Al2O3 ≥ | % | 46 | 45 | 42 | - | - | 44 | 42 | 42 |
| Fe2O3 ≤ | % | 1.0 | 1.2 | 1.5 | - | - | 1.6 | 1.6 | 1.7 |
| Porosity ≤ | g/cm3 | 10 | 12 | 15 | 22 | 24 | 18 | 15 | 16 |
| Poured density ≥ | % | 2.45 | 2.37 | 2.3 | 22 | 24 | 2.32 | - | - |
| Limit of strength at compression at low temperatures ≥ | MPa | 70 | 68 | 58.8 | 30 | 25 | 50 | 59 | 49 |
| Linear change at heating | % | - | -0.1~ +0.05 | -0.2 ~ 0 | +0.1~-0.4 | +0.1~-0.5 | 0~-0.3 | 0~-0.2 | 0~-0.3 |
| Fire resistance under loading (0.2Mpa) | °C | 1520 | 1500 | 1470 | 1400 | 1350 | 1450 | 1450 | 1430 |
| Limit of creep(0.2Mpa) 1250°Cх50ч | % | 0.1 | - | - | - | - | 0.2 | - | - |
تاريخ : دوشنبه بیست و یکم شهریور ۱۳۹۰ | 12:35 | نویسنده : علیرضا حسینی |
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