Overview of Factory High Purity Alumina Powder Calcined Alumina for Refractories

Factory High Purity Alumina Powder Calcined Alumina for Refractories (α-Al₂O₃) is an advanced ceramic material with ultrafine particle sizes (20-200nm) and high purity (99.9%+). Its exceptional surface area, hardness, and thermal stability make it ideal for high-performance applications, including ceramics, coatings, catalysts, and composite materials.

Key Features of Factory High Purity Alumina Powder Calcined Alumina for Refractories

Ultrafine Particle Size – 20-200nm for superior reactivity and dispersion.

High Purity (99.9%+) – Minimizes impurities for precision applications.

Excellent Thermal Stability – Withstands extreme temperatures (up to 1600°C).

Enhanced Mechanical Properties – Improves hardness, wear & corrosion resistance.

Wide Applications – Used in coatings, catalysts, electronics, and advanced ceramics.

(Factory High Purity Alumina Powder Calcined Alumina for Refractories)

Specification of Factory High Purity Alumina Powder Calcined Alumina for Refractories

This alumina powder is produced demanding refractory applications. It supplies high purity degrees regularly. Our calcined alumina powder hits 99.5% Al2O3 pureness minimum. Pollutants are kept extremely low. This matters for efficiency in rough problems. The powder supplies exceptional thermal security. It takes care of severe warm well. This is crucial inside heaters and kilns. Expect solid resistance to thermal shock. Abrupt temperature modifications cause less fracturing. The material supplies premium chemical resistance. It lasts much longer against harsh slags and gases. This lowers wear in heater cellular linings.

Bit dimension circulation is tightly regulated. Great tuning makes certain optimum packing thickness. Thick packing creates stronger refractory frameworks. It also boosts sintering habits. This leads to items with better mechanical strength. The powder has a high melting point surpassing 3000 ° C. It remains solid under intense warmth. Its hardness includes wear resistance. Abrasion creates much less damages over time.

We create this powder utilizing advanced calcination. Careful high temperature handling is key. This step repels volatile elements. It transforms the alumina into its secure alpha phase. The alpha phase gives the very best properties. You get constant outcomes batch after batch. This powder builds high-performance refractory blocks. It shapes castables and specialized forms. It forms protective cellular linings in steel, glass, and concrete plants. It boosts the life expectancy of your devices. It minimizes upkeep costs.

(Factory High Purity Alumina Powder Calcined Alumina for Refractories)

Applications of Factory High Purity Alumina Powder Calcined Alumina for Refractories

Manufacturing facility high pureness alumina powder, especially calcined alumina, is vital for making strong refractories. These products take care of severe warmth in commercial settings. Calcined alumina goes through intense home heating. This process changes its framework. It becomes extremely steady and immune. High purity is critical. It suggests very little contaminations. Impurities weaken the last refractory product. They reduced its melting point. They cause issues under heat.

Refractory manufacturers use this powder in lots of methods. It is a crucial active ingredient in shaped refractories like bricks and special shapes. These components line furnaces, kilns, and activators. The alumina powder provides excellent high-temperature strength. It aids the refractory keep its form. It withstands softening even when really warm. The powder is likewise used in unshaped refractories. These include castables and ramming mixes. Adding calcined alumina boosts their efficiency. It enhances their resistance to warmth, wear, and chemical assault.

The powder is vital for making kiln furnishings. These are shelves and setters holding items throughout shooting. They must withstand duplicated heating and cooling down cycles. Calcined alumina provides the needed thermal shock resistance. It stops them cracking easily. In crucibles and tubes for melting steels or glass, high purity alumina is crucial. It offers excellent chemical resistance. It prevents contamination of the molten material. Alumina powder additionally improves sintering. This is the bonding process throughout shooting. It assists the refractory attain maximum thickness. This causes lower porosity. Lower porosity suggests far better resistance to slag and destructive gases. It minimizes wear gradually. Calcined alumina lessens shrinking throughout shooting. This makes sure parts keep their accurate dimensions. Its solidity boosts the refractory’s abrasion resistance. This is essential where product streams fast. Generally, calcined alumina powder makes refractories last longer. It allows them to run reliably under severe problems.

Company Profile

Alumina Technology Co., Ltd,. We focus on the research and development, production and sales of alumina products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2005, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Alumina Boat, Alumina Crucible, Alumina Dish, Alumina Foam Filter, Alumina Plate, Alumina Rod, Alumina Bar, Alumina Balls, Filter Alumina, Nano Alumina Powder, Spherical Alumina Powder, ect. please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Factory High Purity Alumina Powder Calcined Alumina for Refractories

What is high purity calcined alumina powder?
It’s aluminum oxide powder treated at very high heat. This changes its crystal structure. The result is a very stable, durable material. High purity means minimal impurities. This is critical for refractory performance.

Why is high purity important for refractories?
Impurities weaken refractories. They lower the melting point. They cause cracks under heat. High purity alumina avoids these problems. It withstands much higher temperatures. It lasts longer in harsh conditions.

What temperature is it calcined at?
Manufacturers calcine it around 1200-1500°C. This specific high heat is vital. It completes the transformation to alpha alumina. Alpha alumina is the hardest, most stable form. This gives refractories their strength and heat resistance.

How does particle size affect refractory use?
Particle size matters a lot. Finer powders pack together tightly. This creates denser, stronger refractory shapes. Coarser grains offer different benefits. They improve thermal shock resistance. The right size depends on the specific refractory product needed.

How is this alumina different from regular alumina?
Regular alumina isn’t always calcined the same way. It often has lower purity. This calcined alumina has extreme purity and complete alpha conversion. This makes it much harder and more heat resistant. It performs better under severe thermal stress.

(Factory High Purity Alumina Powder Calcined Alumina for Refractories)