The Description of Tabular Alumina:
Tabular Alumina uses industrial alumina as the raw material,and is sintered in high-temperature vertical kiln with a temperature greater than 1900℃.The product is made of granular corundum crystals closely arranged,evenly distributed to each other,to achieve the best density and inter-granular strength.With high purity,low alkali,high strength,high thermal shock resistance,corrosion resistance properties,it mainly used as alumina base and alumina containing refractory bone material and substrate.
The Application of Tabular Alumina Powder:
It is widely used in metallurgical refractory materials (slide,nozzle,porous plug brick,etc.),ceramic, chemical,glass,abrasives and other industries with refractory materials figured.
Technical Parameter of Tabular Alumina:
| Item |
Unit |
Grain |
Fine Powder |
| Al₂O₃ |
% |
≥99.40 |
≥99.40 |
| Na₂O |
% |
≤0.40 |
≤0.40 |
| SiO₂ |
% |
≤0.09 |
≤0.09 |
| Fe₂O₃ |
% |
≤0.07 |
≤0.09 |
| Magnetic Iron |
% |
≤0.02 |
≤0.03 |
| Bulk Density |
g/cm³ |
≥3.5 |
≥3.5 |
| Apparent Porosity |
% |
≤5.0 |
≤5.0 |
| WaterAbsorption |
% |
≤1.5 |
≤1.5 |
