Brown fused alumina fine powder 0-1mm for refractories

Brown fused alumina powder using calcined bauxite, coke, and iron by controlled melting in an electric arc furnace at a high temperature. Bauxite Used for producing BFA contains high α-Al2O3. After the fusion process, the materials are mixed and fused into liquid materials, then cooled down and crushed(milled)into lump sizes. The lump sizes are then ground into finer grades or powders. Brown fused alumina has high compression strength, toughness, excellent self-sharpening, low thermal expansion coefficient, and excellent hydrophilia and cleanliness.

The process of brown fused alumina fine powder 0-1mm for refractories:
Calcined bauxite is broken into crushing machine — elevating– roll crusher mill– sizing —magnetic separator —fine sieve —water washing (acid washing )—package (25kg/pp bag or paper bag,40 bags/ton bag or pallet )

Chemical composition of brown fused alumina fine powder 0-1mm for refractories:

Application Type Size Chemical composition(%)
Al2O3 Fe2O3 SiO2 TiO2
refractory Sand 0-1mm 95 Min 0.3 Max 1.5 Max 3.0 Max
1-3mm
3-5mm
5-8mm
Fine powder 100mesh 94.5 Min 0.5 Max 1.5 Max 3.0 Max
200 mesh
325 mesh
Hardness 9.0 mohs
Working Temp 1900℃
Melting Point 2200℃

Application of brown fused alumina fine powder 0-1mm for refractories:

1. Abrasive: Produce ceramic grind wheel, resinoid grinding wheel, Grinding stone, Grinding block, sandpaper, sand cloth, sand belt, polish wax, abrasive paste, coating, etc.
2. Refractory material: Mainly used for abrasion and high temperature resistant, inoxidizable aggregate and filling of shaped and monolithic refractory in steel metallurgy, various industrial stoves, electric furnaces, etc.
3. Sandblasting abrasive: Mainly used for various material workpieces to decontaminate, derusting, prevent corrosion, remove oxide skin, etc.
4. Abrasion resistance ground: Mainly used for non-slip of airport and road, chemical factory board paving.
5. Precision casting: Investment casting technics of stainless steel and aluminium casting in the coating.

Brown Fused Alumina(FAQ)

Why is corundum or silicon carbide used?

Corundum is the most frequently used abrasive. The purer the corundum, the harder it also is, which can be determined from the colour. The toughness can be increased by adding various metal oxides and by shortening the cooling process in production. The following distinctions are made: Brown fused alumina with

Type of glue required:

This decision is made by the type of abrasive you have selected or the type of process you will be performing. Glue – A straight animal hide glue that is used to adhere the abrasive particles to the backing. Referred to as “Glue Bond”. Resin – A synthetic resin that

What are the different coated abrasive grain types and their characteristics?

Aluminum Oxide – Aluminum Oxide is brown or reddish in color and a man-made abrasive. It is durable with tough cutting edges. It offers long life and is highly wear resistant even under stress applications. Its applications include aluminum, ferrous metals (including alloy steel), hardwood, and leather. Crocus – Crocus

What does the form factor (grain shape) indicate?

The description of the grain shape can range from “angular” to “acicular” to “spherical”. When the value of the dimensionless form factor is 1, the grain is spherical. The smaller the form factor, the pointier the grain.

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How is fused alumina obtained?

Raw materials containing aluminium oxide are electrothermally melted at a reaction temperature of more than 2,000 °C to produce the various fused aluminas. Different starting materials are used depending on the desired type of fused alumina. For instance,