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Fused Mullite
Fused Mullite is manufactured by fusing a mixture of high purity Bayer Alumina and pure Quartz in a tilting type arc furnace at a temperature around 2000 deg C.
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Brown fused alumina
Brown fused alumina is produced through the high-temperature smelting of bauxite in an electric arc furnace. Following the processes of raw material sorting, electrolytic smelting, crushing, ferromagnetic separation, screening, physical and chemical inspection, finished product packaging, and warehousing, brown fused alumina grinding is created. Brown corundum, derived from high-quality bauxite, undergoes refinement in an electric arc furnace at temperatures exceeding 2000 °C. Renowned for its exceptional purity, exquisite crystallization, remarkable fluidity, minimal linear expansion coefficient, and commendable resistance to corrosion, brown corundum proudly stands as the premier aggregate and filler for brown corundum refractories. -
Dense Fused Alumina
Fused dense corundum is a new type of high-purity refractory materials formed by using high-purity alumina and reducing agent in a certain ratio, smelting in electric arc furnace and cooled. The main crystal phase is α-Al2O3 and color is light gray.
Features
1.High bulk density and very low porosity
2.Excellent wear resistance
3.Good slag resistance in hign temperature
4.High volume stability
5.Good thermal shock resistance
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Calcined Alumina (PA) Series for Polishing
The Polishing calcined alumina are produced to different sizes based on customer's requirement. Series1. Fine polishing series:The original crystal is less than 1 μm 2. Medium polishing series 3. Special for rough polishing purple wax
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White Fused Alumina for Refractories
White fused alumina is a high-grade refractory raw material, made of high-quality industrial alumina powder after being melted at a high temperature above 2200℃ in an electric tilting furnace and then cooled. Its main crystal phase is α-Al2O3, and the color is white.
It is the main raw material for the production of high-grade unshaped and shaped refractories,it’s widely used in variety industries.
Features
1.High refractoriness
2.Good wear resistance and corrosion resistance
3.High load temperature when making products
4.Improve the volume stability and thermal shock resistance of materials.
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White Fused Alumina for Abrasives
White fused alumina is a high-grade abrasive raw material, made of high-quality industrial alumina powder after being melted at a high temperature above 2200℃ in an electric tilting furnace and then cooled. Its main crystal phase is α-Al2O3, and the color is white.
As an important raw material in the abrasive industry, white alumina oxide powder has its own unique characteristics and rich uses
Features
1. Does not affect the color of processed parts
2. After sandblasting, the surface is white and without any impurities,no need complex cleaning;
3. The amount of Fe2O3 is extremely low
4. Fast processing speed and improve the quality.
5. Pickling step to remove impurities.
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Monocrystalline Fused Alumina
Monocrystalline fused alumina, melting at high temperature by special process, is a high-end grinding material. The abrasive particles are off-white.
Features and Advantages:
1.Low sodium, below 0.2%
2.High hardness
3.High toughness
4.High bulk density and high wear resistance
5.High-end abrasive material
6.Small crystal, not easy to damage the workpiece
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Fused Alumina Magnesia Spinel
Fused Alumina Magnesia Spinel is a new type of high-purity synthetic refractory material made from alumina and high-purity light-burned magnesia as the main raw materials in an electric tilting furnace after being melted at a high temperature of more than 2000 ℃ and then cooled.
Features
1. High bulk density
2. Strong erosion resistance
3. High corrosion resistance
4. Good slag resistance and seismic stability
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Micro Sodium White Fused Alumina
The sodium oxide content of micro sodium white corundum is between 0.01 – 0.06%. The main crystal phase is α-Al2O3, and the α phase conversion rate can reach more than 98%, and the color is white.
Features
1. High hardness
2. High sharpness
3. Strong anti-burn ability
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Calcined Alumina (RA) Series for Refractory Materials
YUFA Group has developed high-performance refractory calcined alumina based on its more than 30 years of production experience.
The calcined alumina refractory raw materials produced through the use of exclusive production technology and advanced rotary kiln and tunnel kiln equipment sell well in more than 40 overseas markets.
Features
1. With high bulk density, reduce the water consumption of unshaped refractories
2. The original crystal is small in size, has superior sintering activity and volume stability
3. Reduce or replace the amount of other ultra-fine powders and improve the high-temperature mechanical properties of refractories
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Low-Sodium Calcined Alumina (HA) Series Coarse Powder
YUFA Group has invested a lot of technical research in the low-sodium alumina industry.
We have developed internationally advanced low-sodium technology in response to the needs of the low-sodium alumina market, which has effectively realized customization.
Features
1. Na2O content can be less than 0.01%
2. Suitable for various product applications
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Low Sodium Calcined Alumina (CA) Series for Ceramics
YUFA Group can produce various ceramics alumina series which is suitable for hot die casting pressing, isostatic pressing, or dry pressing and other forming process.
Features
1. Low Sodium,which can below 0.1%.
2. High Purity Alumina
3. Crystal size can be customized
