Sillimanite brick
The products of sillimanite are characterized by high resistance to melting glass corrosion and thermal shocks. This material is used widely as cover blocks,channels,spouts,plungers, tubes,orifice rings and feeder blocks. By isostatically pressing,blowpipes,large feeder blocks or other special shapes of sillimanite blocks can be manufactured. SLI-3 is primarily used for regenerator,arch and understructure of regenerator.
| Physical and chemical index of Sillimanite brick | ||||
| Properties | Products | |||
| 70 Sillimanite | 65 Sillimanite | 55 Sillimanite | ||
| Chemical composition(%) | SiO2 | 65.0 | 60.0 | 55.0 |
| Fe2O3 | 32.0 | 37.0 | 42.0 | |
| Melt Index | 1.0 | 1.0 | 15.0 | |
| Physical properties | Volum density（g/cm3） | 2.50 | 2.30 | 2.30 |
| Apparent porosity（%） | 18 | 19 | 20 | |
| Cold crushing strength（Mpa) | 60 | 60 | 50 | |
| Refratoriness under load 0.2Mpa load (T0.6,℃) | 1650 | 1600 | 1580 | |
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