High temperature calcined aluminium oxide is in the production process of aluminium oxide, in the process of high temperature calcination by high temperature, medium temperature calcined abrasive formation, and then the heat treatment.

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Its main characteristics are: small coefficient of expansion, good hydrophilicity, toughness, high strength, sintering abrasive has burned dark blue, no crack, no rust spots and other characteristics, improve the accuracy of grinding tools processing and grinding effect, especially suitable for high resistance of the grinding tools processing production.

1. The calcination process makes the aluminium oxide material more wear-resistant, stronger grinding force, and has stronger toughness. Calcination oxidizes the substances in the aluminium oxide material, resulting in lattice shrinkage, making the material more resistant to pressure and of high strength. At the same time, the internal stress of grains increases during calcination. In this way, the calcined aluminium oxide material can be processed into different grinding products.

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2. aluminium oxide material by satin sintering, because the wrapped in the surface of the iron corundum due to expansion and broken, if the material has magnetic force, it is easy to absorb magnetic force, reduce the magnetic content of the material. At the same time, the calcined aluminium oxide can be transformed into abrasive tools to avoid the problem of rust spots and improve the appearance and cutting function of the abrasive tools.

3. After several hundred degrees of calcination of aluminium oxide material, the hydrophilicity of aluminium oxide material can be improved several times for about two hours. It was found that the impurities on the surface of aluminium oxide material were removed very cleanly. Combustion of substances with lower melting points. Make the material into grinding tools, more durable.