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silimanite bricks
Product Detailed
Related Categories:Refractory
Detailed Product Description
Silimanite bricks are a kind of refractory bricks which made of sillimanite type of mineral. Sillimanite is calcinationed after high-temperature and then into mullite and free silica.Silimanite brick is general adopt high-temperature firing and pouring cement production. Its physical and chemical properties is better than the high aluminum brick.Its refractoriness is 1770 ~ 1830 and the beginning point of loading to soften is 1500 ~ 1650 . It is main uesd for glass furnaces flow of the liquid-forming, blast furnace lining, the furnace throat, as well as the industrial ceramics kiln.
Mark | Silicon Line brick | Mullite brick | Cyanite brick | |||
TGL-56 | TGL-58 | THRL-65 | THRL-75 | TLG-55 | TLG-65 | |
Density/g·-3 | ≥2.65 | ≥2.70 | ≥2.60 | ≥2.70 | ≥2.60 | ≥2.65 |
Apparent porosity/% | ≤17 | ≤18 | ≤19 | ≤18 | ≤17 | ≤18 |
Compressive strength at normal temperature/M Pa | ≥65 | ≥90 | ≥80 | ≥90 | ≥60 | ≥80 |
Refractoriness under load/ | ≥1550 | ≥1600 | ≥1600 | ≥1650 | ≥1500 | ≥1560 |
Refractoriness/ | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 |
Creep 20~50h/% | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 |
Thermal shock resistance /times 1100→water cold | ≥25 | ≥30 | ≥25 | ≥35 | ≥20 | ≥25 |
Linear change after reheating 3h/% | 0~+0.1 | 0~+0.1 | 0~+0.1 | 0~+0.1 | 0~+0.1 | 0~+0.1 |
ω(Al2O3)/% | ≥65 | ≥75 | ≥65 | ≥75 | ≥65 | ≥75 |
ω(Fe2O3)/% | ≤1.0 | ≤0.8 | ≤1.0 | ≤0.8 | ≤1.0 | ≤0.8 |
ω(R2O)/% | ≤0.6 | ≤0.5 | ≤0.7 | ≤0.5 | ≤0.8 | ≤0.6 |
