High Hardness White Fused Alumina

White fused alumina to industrial alumina powder as raw material, we made more than 2000 degrees high temperature melting, arc through crushing plastic, magnetic separation to iron, screen is divided into a variety of particle size, dense texture, high hardness, particle formed globular, white corundum grinding tool is suitable for making ceramic, resin consolidation and grinding, polishing, sandblasting, precision casting, etc., can also be used for manufacturing high-grade refractory materials, code-named "WFA" international common standards and national standards.Grain sizes of the F4 ~ F220, its chemical composition depending on the size of the particle size.Product size according to the international standard and national standard production, granularity processing according to user requirement.

2 . White fused alumina performance characteristics
1, does not affect the color of the machined part;
2, can be used in iron powder residue is forbidden of process to sand;
Level 3, micro powder is very suitable for wet sand and research;
4, processing speed, high quality;
5, very low amount of iron oxide in suitable for the sand blasting of iron residue is forbidden;
6, after pickling, making sand programmed numerous for Jane.  

3 . White fused alumina are suitable for all kinds of high-end products, technology or beautify processing, hardware and other products surface after sand blasting surface clean without any impurities, cleaning trouble.Fine white corundum can be used for polishing.Also can be used as additive in various products.
1, available in various types of sand blasting, and research the light (lTbppinTb) homework.
2, glass or acrylic crafts aesthetic feeling of atomization process.
3, television screen, sand blasting process.
4, the cutting of silicon wafer.
5, the teeth clean sand.
6, precise foundry sand.
7, burrs and processing: bakelite, plastic, zinc and aluminum die-casting products, electronic components, the flash removal of magnetic core, etc.Eliminate the processing.

4 . Advantages of white fused alumina
1, High hardness and strong wear resistance**
The Mohs hardness of  white fused alumina  is as high as 9.0, second only to superhard materials such as diamond and cubic boron nitride, and much higher than most metal and non-metal materials. This high hardness endows it with extremely strong grinding and cutting capabilities. During processes such as grinding and polishing, it can quickly remove excess parts from the surface of the material being processed, and has a low wear rate, allowing it to maintain a high-efficiency working state for a long time. For example, grinding wheels made of white corundum can easily handle the hard surface of high-strength metals such as quenched steel and high-speed steel, ensuring processing efficiency.

2, High purity and stable chemical properties
The main component of white fused alumina is aluminum oxide (Al ₂ O3), with a purity usually above 95%. High quality white fused alumina can reach a purity of over 99%, with extremely low impurity content. High purity makes it highly chemically stable, not easily reacting with chemicals such as acids and bases, and not reacting with materials such as metals and ceramics being processed, thus avoiding contamination or corrosion of the processed surface. This characteristic makes it highly favored in processing scenarios that require extremely high surface cleanliness, such as precision instruments and aerospace components.

3, High temperature resistance and excellent fire resistance
The melting point of white fused alumina is as high as 2050 ℃, and it can maintain stable physical and chemical properties in extreme high temperature environments without easily melting, deforming, or decomposing. Therefore, it is often used as a refractory material for manufacturing high-temperature kiln linings, refractory bricks, castables, etc. In high-temperature industries such as steel smelting and glass manufacturing, refractory products made of white fused alumina can effectively resist high-temperature flames and slag erosion, extending the service life of equipment.

4, Good self sharpening ability
During use, white fused alumina abrasive particles will gradually break due to the action of grinding force, revealing new sharp edges and corners. This "self sharpening" ability enables it to maintain its grinding ability continuously, reducing the frequency of frequent adjustments required for the grinding tool due to abrasive particle passivation. Compared to other abrasives, white fused alumina has a more balanced self sharpening property, which can ensure grinding efficiency and avoid scratches on the machined surface caused by sudden cracking of abrasive particles, helping to improve the smoothness of the machined surface.

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