White corundum micro powder is a high-purity and high hardness micro powder material obtained from high-quality alumina as raw material through precision grinding and grading, with various excellent properties and wide applications. The following is a detailed introduction to white corundum micro powder:
1、 Characteristics and advantages
High purity: The purity of white corundum micro powder is as high as 99.9%, with extremely low impurity content, ensuring its excellent performance.
High hardness: The hardness of white corundum micro powder is second only to diamond and silicon carbide, with a very high specific surface area, which can efficiently grind and polish various materials.
Good chemical stability: It is not prone to chemical reactions with other substances and will not contaminate the workpiece during the grinding process.
Uniform particle size distribution: It can ensure the uniformity of grinding and polishing, improve the surface quality and accuracy of the product.
Good wear resistance: able to maintain stable grinding effect during long-term work.
No radioactive contamination: It does not contain radioactive substances and is safer for human health and the environment.
2、 Production process
The production process of white corundum micro powder includes steps such as raw material preparation, high-temperature melting, cooling, crushing, shaping, screening, iron removal, and packaging. The specific process is as follows:
Raw material preparation: Using high-purity alumina powder as raw material.
High temperature melting: Put aluminum oxide powder into an electric arc furnace and melt and crystallize at temperatures above 2000 ℃.
Cooling and crushing: After the melt is cooled, it undergoes processes such as coarse and fine crushing to produce granular white corundum.
Shaping and screening: Processing the particles into spherical or pointed shapes through autogenous mills or Bamac ball mills, and then screening them to obtain products of different particle sizes.
Iron removal and packaging: Remove iron impurities through magnetic separation to improve purity, and finally package according to customer requirements.
3、 Application Fields
Optical glass processing: In the processing of optical glass, white corundum micro powder is widely used in processes such as rough grinding, fine grinding, and polishing, which can effectively remove defects and scratches on the surface of the glass, improve the optical performance and transmittance of the glass.
Ceramic manufacturing: In the ceramic manufacturing process, white corundum micro powder is mainly used for precision cutting and polishing of ceramic materials, improving the surface quality and accuracy of ceramic products.
Semiconductor manufacturing: In the semiconductor manufacturing process, white corundum micro powder is widely used in processes such as cutting, grinding, and polishing of wafers, ensuring high-precision processing and good surface quality of wafers.
Other fields: White corundum micro powder is widely used in precision grinding and polishing of various hard materials such as metals and non metals, especially playing an important role in the production of high-tech fields such as optical glass, ceramics, and semiconductors.
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White fused alumina
Key words:
White fused alumina
Classification:
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The product has high hardness, acid and alkali corrosion resistance, high temperature resistance and good thermal stability. It is a high-grade refractory material.
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