Tabular aluminas grit is made of Al2O3, after ingredients, grinding and forming, smelting in high temperature furnace turned to α- Al2O3.
Tabular aluminas grit has good heat resistance and good bulk temperature thermal shock capabilities. Tabular alumina crystal staggered plate shape, to increasing the mechanical strength of the particles; interior structure full of closed pores, high bulk density, low apparent porosity and water absorption, to reducing the amount of fluid re-use productions; With good physical properties like: high refractoriness, excellent thermal shock resistance, low shrinkage and good thermal load strength etc. Meanwhile, high-purity avoiding damage to machines.
Tabular alumina in refractory
Item | Chemical composition | Physical property | |||||
AL2O3 | Na2O | SiO2 | Fe2O3 | Bulk density | Apparent porosity | Water absorption | |
≥% | ≤% | ≤% | ≤% | ≥g/cm3 | % | % | |
0-1, 1-3, 3-5, 5-8 | 99.2 | 0.40 | 0.1 | 0.05 | 3.5 | 5.0 | 1.5 |
200#-0, 320#-0, 325#-0 | 99.1 | 0.40 | 0.15 | 0.05 | 3.45 | 6.0 | 2.0 |
1).Refractory materials, furnace charge, aggregate, castable, rammed miscellaneous materials, plastic, pressing materials, projection materials, spray paint, vibration materials, refractory mud
2) Wear-resisting coating, refractory coating, wear-resisting machinery,
3) Smelting, casting, steel mills, power plants
4) Ceramic deburring, surface treatment
5) Firebrick, fireproof ceramics
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