High Performance Tabular Alumina For Grinding
abular alumina is often packed in 25 kg or 50 kg bags made of paper or plastic.For larger quantities, tabular alumina can be packed in steel drums or plastic containers.
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Description
Tabular alumina is a high-purity form of aluminum oxide (Al2O3) that is made by sintering high-purity alumina at a temperature of over 1800°C. It has excellent mechanical properties, high-temperature stability, and chemical resistance, which make it an ideal material for a wide range of industrial applications.
One of the primary applications of tabular alumina is as a grinding material. Tabular alumina is used in the production of high-performance grinding wheels and other abrasive products that are used to grind and shape a wide range of materials, including metals, ceramics, and glass.
When used as a grinding material, tabular alumina offers several advantages over other materials. For example, it has a high hardness and excellent wear resistance, which means that it can grind and shape materials quickly and efficiently. It also has a high thermal conductivity, which helps to dissipate heat generated during the grinding process, reducing the risk of thermal damage to the workpiece.
To produce high-performance tabular alumina for grinding, the material must be carefully processed and treated. The sintered alumina is first crushed and then ground to a fine powder. The powder is then sieved to obtain particles of the desired size range. The particles are then subjected to a series of treatments, including chemical purification and heat treatment, to enhance their mechanical and chemical properties.
Specification
| Property | Value |
|---|---|
| Chemical formula | Al2O3 |
| Crystal structure | Alpha-alumina (hexagonal) |
| Appearance | White, crystalline powder |
| Density | 3.9 g/cm³ |
| Melting point | 2040°C |
| Hardness (Mohs) | 9 |
| Thermal conductivity | 25-35 W/m·K |
| Specific heat | 0.9 J/g·K |
| Young's modulus | 380-420 GPa |
| Applications | Grinding, refractories, ceramics, metal production |
Features
High hardness and wear resistance: High performance tabular alumina has a high Mohs hardness of 9, making it extremely hard and wear-resistant. This makes it ideal for use in grinding and polishing applications, where it can easily remove material from hard surfaces.
High thermal shock resistance: High performance tabular alumina has a low thermal expansion coefficient, which means it is highly resistant to thermal shock. This property makes it ideal for use in grinding applications, where rapid heating and cooling can cause other materials to crack or break.
Chemical stability: High performance tabular alumina is highly resistant to chemical attack, even at high temperatures. This makes it suitable for use in aggressive environments where other materials may corrode or degrade.
Uniform particle size distribution: High performance tabular alumina is available in a range of particle sizes, from fine powders to large granules. The uniform particle size distribution ensures consistent performance in grinding applications.
High purity: High performance tabular alumina is a very pure material, with a minimum alumina content of 99.5%. This purity ensures that there are no impurities or contaminants that could affect its performance in grinding applications.
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