white corundum
Used in abrasive industry, such as consolidated abrasives, coated abrasives. It is a relatively pure product and its low iron alumina content makes it suitable for a wide range of applications.
Consolidated abrasive tools
Coated abrasives
Spraying material
Refractory material
White corundum color is white, hardness and toughness is slightly higher than brown. Abrasive tools made of this material are suitable for fine grinding of high carbon steel, high speed steel and stainless steel, finer particle size grinding powder, and can also be used for precision casting and high-grade refractory materials.
White corundum is made of industrial aluminum oxide powder, which is melted in an electric arc furnace above 2000℃ and cooled to crystallize to obtain white corundum frit. White corundum and industrial alumina powder also contain alumina, so why do we need to do all this extra work for smelting?
This is because many of the excellent properties of white corundum come from its α-Al2O3 crystal, while the alumina content of industrial aluminum oxide powder is only 98%, which not only contains other impurities, but also contains Al2O3 isomers, which can significantly reduce the various properties of corundum materials. Therefore, impurities must be removed by melting, the alumina content purified, and the α-Al2O3 crystal formed by recrystallization.
White corundum segmented sand
Particle size range 0-1mm, 1-3 mm, 3-5 mm, 5-8 mm, 100#-0, 200#-0, 320#-0, ETC. Mainly used as shaped refractories, amorphous refractories and floor sand
White corundum grit sand
Also known as white corundum sand, it is mainly divided into white corundum F sand and white corundum P sand and national standard micro-powder W.
White corundum fine powder
Belongs to the white corundum profile sand, the product of 0 to a certain particle size of the section sand is also called fine powder, is the white corundum sand production line of the most fine sifted products, the general model is: 100#-0, 200#-0, 320#-0, 0-1 mm.
White corundum powder
White corundum micro-powder selection of white corundum profile sand production line high-quality white corundum fine powder, further broken and formed through the tube mill, magnetic separation of iron, pickling humidification.
| hardness | 9 Mohs |
| granular | Angular |
| melting point | 2050℃ |
| proportion | 3.9-4.1 g/cm3 |
| Bulk density (depends on particle size) | 1.4-2.1 g/cm3 |
| lt | guarantee value | Typical value |
| Alumina | 99.3% minutes | 99.7% |
| Fe203 | 0.1% maximum | 0.05% |
| Na20 | 0.4% maximum | 0.16% |
| Silica | 0.15% maximum | 0.02% |
For high quality precision casting and refractory materials.
For baking linings, catalysts, and friction products.
For pressing hard abrasives; refractory industry.
Suitable for wet and dry blasting, sanding, wrapping and polishing.
Used for abrasive tools: grinding wheels, grinding and polishing anti-slip names.
Used for bonded abrasives and coated abrasives, thermal spraying (plasma spraying).
Suitable for grinding and microblasting applications . Refractories, ceramics and tiles.
