Alumina Powder

1. Low impurity, deep sodium removal
HUAO's alumina powder use of water washing and impurity removal process strictly controls the Na ₂ O content to avoid the influence of sodium impurities on sintering, insulation, and high-temperature performance, ensuring the purity and stability of the material.
2. High alpha conversion rate
The conversion rate of α crystals reaches over 93%, with stable crystal structure and high density, which can improve the hardness and pressure resistance of sintered products.
3. Uniform particle size and good dispersibility
After multi-stage precision grinding and grading, the particle size distribution is concentrated, there are no lumps, and it has good compatibility with dry and wet processes, making it easy to mix and form.
4. High melting point, high temperature stability
The melting point can reach 2050 ℃, and it is stable in high temperature environments without deformation, suitable for high-temperature refractory materials and ceramic sintering working conditions.
5. Excellent insulation and thermal conductivity
High volume resistivity and good thermal conductivity can quickly conduct heat while ensuring electrical safety.
6. Batch stability and strong consistency
Strict production control and full process testing ensure minimal performance differences between batches, reducing the finished product scrap rate caused by raw material fluctuations.
 

1. Electronic ceramic manufacturing
Used for insulating substrates, circuit components, and ceramic packaging, relying on high insulation and low impurity characteristics to ensure the safety and stability of electronic devices.
2. Advanced refractory materials
Add to refractory castables, refractory bricks, and lining materials to improve the high-temperature strength, corrosion resistance, and service life of refractory products.
3. Structural ceramics and wear-resistant parts
As a raw material for ceramic bearings, mechanical seals, and wear-resistant components, it improves the hardness, wear resistance, and impact resistance of the product.
4. Precision polishing and surface treatment
HUAO's alumina powder used for polishing optical glass, semiconductor components, and metal surfaces, with high hardness, uniform particle size, achieving mirror effect, and no scratches.
5. Ceramic glazes and advanced coatings
Add to ceramic glazes and functional coatings to improve the surface smoothness, hardness, and corrosion resistance of the product.

1. Boron free calcination and deep purification
Adopting boron free rotary kiln calcination and water washing sodium removal process to ensure ultra-low impurity content and meet the requirements of high-end precision products.
2. Stable alpha phase control
Accurately controlling the calcination temperature and time ensures a high and stable α phase conversion rate, laying the foundation for the excellent performance of the finished product.
3. Customized particle size and purity
Support customized processing of particle size, purity, and other indicators based on customer technology and application scenarios to meet personalized needs.
4. Whole process quality inspection
Each batch of products undergoes testing for chemical composition, particle size, true density, and alpha phase conversion rate to ensure that all indicators meet the standards.
5. Stable supply capacity
Large scale production lines, sufficient inventory, and short delivery times ensure long-term stable supply to customers and avoid production interruptions. 

Q1: How long is the delivery period?

A1: Depending on the product, the delivery period is different. The customized products are generally about one month, and the conventional products are about 7-10 days

Q2: What is the payment method?

A2: 30% paid for deposit by T/T after palcing order,the balance to be paid before shipment.

Q3: Where you export to?

A3: Australia, Europe, India, South Africa, etc.