White Fused Alumina For Abrasive
In addition to its use as an abrasive, White Fused Alumina is also used in refractory materials, ceramics, and as a raw material for the production of other high-purity materials. Its properties make it a versatile material with a wide range of applications.
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Description
White Fused Alumina (WFA) is a synthetic material made from high-quality aluminum oxide powder. It is a highly pure, dense, and sharp abrasive material that is used in a wide range of industrial applications, including surface preparation, finishing, and polishing.
The production of WFA involves fusing alumina in an electric arc furnace at a temperature of over 2000°C. The resulting material is then crushed and sized to create the desired abrasive grit size. WFA is available in a range of grit sizes, typically from F12 to F800, with F12 being the coarsest and F800 being the finest.
White Fused Alumina is an excellent choice for applications that require a high level of precision and consistency. It is particularly well suited to applications where a high-quality surface finish is required, such as in the automotive, aerospace, and electronics industries. Its hardness and sharpness also make it an effective abrasive for cutting and grinding applications.
Specification
| Property | Value |
|---|---|
| Chemical Composition | Al2O3 ≥ 99% |
| Color | White |
| Crystal Form | Alpha Alumina |
| Bulk Density | 3.50 - 3.95 g/cm3 |
| Mohs Hardness | 9.0 |
| Melting Point | Approximately 2000°C |
| Maximum Operating Temperature | Approximately 1850°C |
| Thermal Conductivity | 28-34 W/mK |
| Specific Gravity | 3.95 g/cm3 |
| Refractive Index | 1.765 |
| Abrasive Type | Sharp, angular |
| Standard Sizes | F12 - F1200 |
Features
High Purity: White Fused Alumina (WFA) has a very high level of purity, which makes it ideal for applications where contamination from other materials is a concern.
Hardness: WFA has a high level of hardness, which makes it suitable for use as an abrasive in various applications.
Thermal Stability: WFA has excellent thermal stability, which makes it resistant to high temperatures.
Chemical Stability: WFA is chemically stable, which means it is not affected by acidic or alkaline substances.
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