1. Technics: Calcined temperature beyond 1300C, the alumina powder be calcined without Boron, Ultimate crystal size 3-5um.
2. Application: TCH-1/TCH-2/TCH-3 is good for producing electronic alumina ceramic/wear resistant ceramic(alumina wear tile, alumina ceramic brick, alumina ball)/alumina ceramic substrate.
3. Payment Term: TT /LC AT sight.
4. Delivery time: Within 2 weeks to ship since the date we receive your deposit or L/C at sight.
5. AI2O3>99.7% Na2O <0.3% Fe2O3<0.024% SiO2<0.019% TiO2<0.008%.
6. Loss weight when burning<0.2% Density=3.96g/cm3 a-Al2O3>93%
Medium particle size(D50) 75um Ultimate crystal size 3-5um
BET specific surface area 1.0 m2/g
Characters:
This product is refined from high quality calcined alumina by scientific confecting, rubbing, pulping, spraying, drying. The product is charactered by reasonable particle size, moderate strength, good fluidity, low sintering temperature, easy demolding.
Alumina Spray Prilling Powder
Ceritificates: SGS, ISO
AL2O3 Highest Purity 99.9%
High density
Low sinteresting temperate
| Indicators | Units | A90 | A92 | A95 | A97 | A99 |
| Al2O3 | % | 90 | 92 | 95 | 97 | 99 |
| Fe2O3 ≤ | % | 0.1 | 0.10 | 0.1 | 0.1 | 0.05 |
| Moisture | % | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Stacking Density | g/c m3 | 1-1.2 | 1-1.2 | 1-1.2 | 1-1.2 | 1-1.2 |
| Particle size | Mesh | 40~300 | 40~300 | 40~300 | 40~300 | 40~300 |
| Sintering temperature | ° C | 1530 | 1550 | 1590 | 1630 | 1650 |
| Sintering density | g/c m3 | 3.50 | 3.62 | 3.65 | 3.70 | 3.85 |
| Soaking time | h | 2 | 2 | 2 | 2 | 2 |
| Na2O≤ | % | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Average shrinkage | % | 16-18 | 16-18 | 16-18 | 16-18 | 16-18 |
| The color of Ceramic |
| White | White | White | White | White |