Jun 30, 2021
Sillimanite Bricks
Sillimanite Bricks Production Craft
Slurry casting method produced sillimanite bricks adopt natural sillimanite, synthesized mullite, high alumina clinker and so on as raw materials. Gypsum mould is made according to products shapes, and slurry used for casting is prepared based on technical parameters. After casting, green sillimanite bricks should be dried before high temperature sintering.
Sillimanite Bricks Physiochemical Indexes
| Item | GXSZ-1 | GXSZ-2 | GXSZ-3 | GXSZ-4 |
| Al2O3 % | 56.4 | 59.3 | 64.5 | 65.5 |
| Fe2O3 % | 0.96 | 0.80 | 1.0 | 0.71 |
| SiO2 % | 39.5 | 38.1 | 33.4 | 31.9 |
| CaO % | 0.28 | 0.08 | / | / |
| K2O % | 0.51 | 0.24 | 0.4 | 0.46 |
| Bulk density g/cm3 | 2.36 | 2.34 | 2.58 | 2.32 |
| Apparent porosity % | / | 20.8 | 16.2 | 21.8 |
| Refractoriness s under load ℃ | / | 1620 | 1650 | 1570 |
| Modulus of rupture Mpa | / | 60 | 70 | / |
| Thermal expansion coefficient % | / | 5.5 | 6 | 6.6 |
Sillimanite Bricks Applications
Sillimanite bricks have better physiochemical properties than high alumina bricks, they are mainly used in glass tank furnace throat, blast furnace lining, furnace throat, ceramics industry kiln furniture and so on. As sillimanite bricks have good high temperature thermal stability, good resistance to glass liquid corrosion, low pollution to glass liquid, they are usually used at glass industry feeding canister, feeder, tube drawing machine and other equipment, production efficiency are significantly improved. Sillimanite bricks series products mainly include: feeder bricks, feeding canister, rotating tube, feeder nose, feeder bowl, former block, slag skimmer block, shutter block, front arch bricks, back arch bricks, feeder nose cover, burner nozzle bricks, cover plate and so on.
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