Al2O3 Powder
Description
Technical Parameters
Products Description
High purity alumina powder is a basic industrial raw material with stable physical and chemical indicators, produced through professional calcination and precision grinding processes. Our factory controls the entire production chain from raw material selection to finished product screening, ensuring stable purity, uniform particle size, and reliable performance of each batch of powder.
Al2O3 powder is mainly made from high-quality bauxite, and impurities are removed through various processes to achieve high purity levels. It is a white, non fixed powder that dissolves in water. It has no odor, no taste, strong chemical stability, high purity, high specific gravity, and good insulation performance. It can meet the production requirements of high-end ceramics, refractory materials, electronic devices, and precision polishing products.
Product Features
1. Ultra high purity, low impurities
Our Al2O3 powder adopts multiple impurity removal processes, which can effectively remove impurities such as iron, sodium, calcium, etc. The high purity level can reach over 99.9%, ensuring that there is no impurity interference in product production and improving the quality of finished products.
2. Uniform particle size and good fluidity
After precision grinding and grading, the particle size of the powder is uniform, without large particles or clumps.
3. High temperature resistance
It has stable chemical properties at high temperatures, does not decompose, does not deform, and does not react with other substances. Suitable for the production of refractory materials and high-temperature ceramic products, capable of maintaining structural stability in extreme high-temperature environments.
4. High fever activity
Al2O3 powder has moderate sintering activity and can be sintered at lower temperatures to reduce energy consumption during production. Sintered products have high density, smooth surface, and good mechanical strength.
production process
1. Raw material selection
We choose high-grade bauxite with low impurity content as raw material and conduct preliminary tests on the chemical composition of each batch of raw materials to ensure the qualification of the product.
2. Purification treatment
Raw bauxite is purified through chemical and physical methods to remove harmful impurities such as iron, silicon, and sodium, laying the foundation for the production of high-purity products.
3. High-temperature calcination
The purified raw materials are sent to a professional calcination kiln for high-temperature heating. Accurately control the calcination temperature and time to improve the stability of the product.
4. Precision grinding
The calcined material is ground by professional grinding equipment to control the particle size within the required range. We can produce products of different particle sizes according to customer needs.
5. Graded screening
The ground powder is classified by a precision screening device to remove unqualified large particles and ensure uniform particle size distribution.
6. Finished product testing and packaging
Each batch of finished products undergoes testing for purity, particle size, bulk density, and other indicators. Qualified products are packaged in moisture-proof sealed packaging to prevent moisture and contamination during storage and transportation.
Parameters
|
Features/Methods |
Unit |
HA 20 |
HA 30 |
HA 40 |
||||||
|
Typical |
Min |
Max |
Typical |
Min |
Max |
Typical |
Min |
Max |
||
|
Na2O |
% |
0.12 |
|
0.20 |
0.08 |
|
0.12 |
0.08 |
|
0.12 |
|
Fe2O3 |
% |
0.03 |
|
0.05 |
0.02 |
|
|
0.03 |
|
|
|
Mgo |
% |
0.01 |
|
|
0.04 |
|
|
0.03 |
|
|
|
SiO2 |
% |
0.03 |
|
0.08 |
0.03 |
|
0.07 |
0.03 |
|
0.07 |
|
CaO |
% |
0.02 |
|
|
0.02 |
|
|
0.03 |
|
|
|
Surface area /BET |
M2/g |
2.1 |
1.5 |
3.0 |
3.8 |
3.0 |
4.5 |
4.8 |
4.0 |
5.5 |
|
D50 Cilas |
μm |
1.8 |
1.4 |
2.3 |
1.5 |
1.2 |
1.8 |
1.2 |
0.8 |
1.5 |
|
D90 Cilas |
μm |
4.5 |
|
6.0 |
5.0 |
4.0 |
6.0 |
5.5 |
4.7 |
6.8 |
|
Particle distribution |
|
singlet |
|
|
multimodal |
|
|
doublet |
|
|
FAQ
Q1: What packaging?
A1: Depending on the size of the cargo, the packaging is different. There are cartons, wooden boxes, and ton packages. According to customer needs or special requirements of the goods, choose the appropriate packaging.
Q2: How to ensure the quality of the product?
A2: Use tabular alumina as an example. Before shipping, we will take pictures, take samples, and send them to the laboratory for physical testing. It is sent to third-party institutions for chemical testing to ensure product quality.
Q3: Can you supply free samples?
A3: 1kgs free sample is available, but freight charges will be at your account, The charges will bereturn to you or deduct from your order in the future.
Q4: What about the payment?
A4: For small goods, 100% payment in advance, and for most cargos, we need 30% in advance, balance payment before shipment or payment against the copy of B/L.
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