Zirconia Coated White Fused Alumina 99.37% For Resin Abrasives
Zirconia Coated White Fused Alumina WFA99% for Resin Abrasives
1. White Fused Alumina Descriptions
White fused alumina is an industrial product. It is melted of high quality aluminum oxide in an electric arc. White fused alumina consists of about 99 % α-aluminum oxide. The outstanding property of white fused alumina is a high hardness and transparency. Only diamonds are tougher. This high hardness is a challenge for every grinding technology. Our micronized white fused alumina flours are characterized by a narrow grain size distribution. Another refining step is the surface-treatment with silanes or silane-based substances which can be adjusted to the respective application.
2. White Fused Alumina Characteristics
Hardness: 9 mohs min.
Grain shape: angular
Melting point: approx. 2050°C
Specific gravity: approx. 4.0 g/cm3
Bulk density: approx. 1.5 – 2.1 g/cm3
(depending on grain size)
3. White Fused Alumina Packing
1). 25 kg/bag, in bulk;
2). 25 kg/bag, 40 bags/big bag;
3). 25 kg/ bag, 40 bags/pallet;
4). According to customer's requirement
4. White Fused Alumina Applications
Refractory, Furnace Burden, Castables, Ramming Compound, Refractory Bricks etc.
Blasting, surface Treatment, Rust Removal
Cosmetics products manufacturing, Beauty crafts and Dermabrasion etc.
Ceramic products such as ceramic filter plate, ceramic membrane etc.
Grinding wheels, Cup Wheels, sandpaper etc.
Glaze, floor coating, Floor / Wall Laminates
raw material of Knife Grinder, Whetstone, oilstone, grinding stone, abrasive stones and so on
Used to produce Polishing wax, polishing fluid, Polishing pads, grinding powder, grinding fluid and so on
Wear-resisting floor
Brake linings5. White Fused Alumina Specifications
| Items | Unit | Index | Typical | |
| Chemical composition | Al2O3 | % | 99.20min | 99.33 |
| SiO2 | % | 0.20max | 0.07 | |
| Fe2O3 | % | 0.10max | 0.06 | |
| Na2O | % | 0.40max | 0.23 | |
| Refractoriness | ℃ | 1850min | ||
| Bulk density | g/cm3 | 3.50min | ||
| Mohs hardness | --- | 9.00min | ||
| Principal crystalline phase | --- | α-Al2O3 | ||
| Refractory grade | Grain | mm | 0-50, 0-1, 1-3, 3-5, 5-8 | |
| Fines | mesh | -200, -325 | ||
| Grit (F grade and P grade) | FEPA | F8, F16, F20, F24, F30, F36, F46, F54, F60, F70, F80, F90, F100, F120, F150, F180, F220 | ||
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