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Yes.FREE SAMPLES 5kg can be provided for your evalution.
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）
What is grit size?
Grit size typically runs from coarse (16 -24 grit), medium (36 – 60 grit) and fine (80-120 grit). Superfine grits run from 150 and higher. Grinding wheels usually will be between 24 and 100 grit. Honing stones and jointing stones and other polishing abrasives will be 150 grit and higher.
Coarseness of the abrasive mineral:
Commonly referred to as “grit”, this number designation is determined by the amount of abrasive mineral that can pass through a mesh screen with specific size openings. Therefore, a 40 grit abrasive particle will pass through a mesh screen that has 40 openings in one linear inch. Consequently, the higher
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 is the structure?
Structure is basically the spacing between abrasive grains. An open structure would be 12 or higher while a closer structure would be 6 or so. Here again, the structure depends on a variety of factors not the least of which is how difficult the material is to grind.
Which measurement methods are applied?
Dynamic image analysis (DIA) Static light scattering (SLS, also called laser diffraction) Screen analysis Impedance method Sedimentation
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Brown Fused Alumina Products
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