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White fused alumina is made from industrial alumina powder as the raw material. It is melted at a temperature above 2000 degrees Celsius in an electric arc and then cooled. After being crushed and shaped, it undergoes magnetic separation to remove iron, and is then sieved into various particle sizes. Its texture is dense and its hardness is high. The particles have sharp corners. It is suitable for manufacturing ceramics, resin-cemented tools, as well as grinding, polishing, sandblasting, precision casting (special corundum for precision casting), etc. It can also be used to manufacture high-grade refractory materials.
| NO. | ITEM | RESULT |
| 1 | Al2O3 | 99.42% |
| 2 | SiO2 | 0.17% |
| 3 | Fe2O3 | 0.06% |
| 4 | Na2O | 0.28% |
| 5 | 50 MESH | 0 |
| 6 | 70 MESH | 16 |
| 7 | 80 MESH | 58 |
| 8 | 100 MESH | 83 |
| 9 | 120 MESH | 0 |
Packaging & Shipping
1.Abrasive field:
White corundum is a very high-quality abrasive material that can be made into different particle sizes. It is used for grinding and polishing of materials such as metals, ceramics, glass, and plastics, which can significantly improve the surface finish of the processed materials and meet the surface quality requirements of different fields.
2.Optical field:
White corundum has characteristics such as high transmittance, low thermal expansion coefficient, excellent chemical stability and thermal stability. Therefore, it has wide applications in the optical field. For example, it can be used to manufacture high-precision optical lenses, windows, prisms and various optical devices, etc. .
3.Electronic field:
White corundum also has significant applications in the electronic field. Due to its low electrical conductivity, it can be used to manufacture high-temperature electrical insulating materials, such as high-temperature electro-oxidized alumina ceramics, which are widely used in power electronics, communication electronics, aerospace, automotive and other industries.
4.Chemical industry:
White corundum possesses excellent acid resistance, alkali resistance and corrosion resistance, thus it has extensive applications in the chemical industry. For instance, it can be used to manufacture high corrosion-resistant equipment such as chemical reactors, pipelines, and pumps.
5.Casting field:
White corundum sand has multiple important applications in casting. White corundum sand has high hardness and wear resistance, making it an ideal component for the surface layer sand. During the casting process, white corundum surface layer sand can remove the unevenness on the mold surface, reduce the formation of pores and defects, thereby improving the appearance and quality of the castings. White corundum sand has high strength and a low expansion coefficient. Under high-temperature conditions, it does not expand and crack, thus ensuring the structural integrity and service life of the casting sand. In addition, white corundum sand also has good demolding performance and anti-sticking sand properties. The shell layer is not easy to peel off, the curing speed is fast, which helps to reduce defects in the casting process and improve production efficiency.
6.Ceramic Additives:
White corundum powder is widely used as an additive in ceramic products. Its unique physical and chemical properties make it an important raw material in the ceramic industry. White corundum powder has the characteristics of high hardness and high wear resistance. When added as an additive to ceramics, it can significantly improve the hardness and wear resistance of the ceramics. This makes ceramic products more durable during use, capable of resisting external wear and impact, thereby extending their service life.
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Q:Do you accept customization?
A:We could like to give you suitable suggestion about Fritted according to your detail application.