Complaint
High temperature calcined alpha alumina powder is produced by aluminum hydroxide powder or industrial alumina powder as raw material, with 1450 ºC high temperature tunnel kiln calcining process, adding special additives reduce the impurity content, improve the alpha conversion rate, control the crystal shape, particle calcined under enough heat preservation time, and the micro powder is the use of high alumina ball mill grinding classification.
Features: high purity, high whiteness, than really important, good thermal stability, uniform particle size distribution and liquidity is good wait for a characteristic.
Application: widely used in ceramics, electrical porcelain, refractories, spark plugs, brake pads, high insulation, high purity refractory fiber, high-grade castable, grinding polishing, artificial stone, etc.
Brands | Chemical components % | a-Al2O3% ≥ | effective density g/cm3 ≥ | Primary crystal size D50 u m | ||||
| Al2O3 ≥ | SiO2 ≤ | Fe2O3 ≤ | Na2O ≤ | L.O.I ≤ | ||||
| A-C-30 | 99.0 | 0.10 | 0.04 | 0.35 | 0.20 | 94 | 3.93 | 4±1 |
| A-C-30-A | 99.0 | 0.10 | 0.04 | 0.35 | 0.20 | 93 | 3.93 | 2.5±1 |
| A-C-40 | 99.4 | 0.20 | 0.07 | 0.4 | 0.25 | 90 | 3.90 | |
1. Processing Method: Calcined temperature beyond 1450ºC, 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: L/C at Sight. T/T Paypal etc.
4. Delivery/Lead Time: About 2 weeks after receiving payment (deposit)
5. AI2O3>99%~99.7% Na2O<0.05%~0.3% Fe2O3<0.024% SiO2<0.019% TiO2<0.008%.
6: Loss On Ignition<0.2% Density=3.96g/cm3 a-Al2O3>93% ~ 96%
Medium particle size(D50) 75um Ultimate crystal size 3-5um
BET specific surface area 1.0 m2/g
Usage
Q: How is your quality ?
A: We have technicians and QC for quality control . And we would like to do third party inspection such as
