The anomalous expansion elimination of calcined brown aluminum oxide
The anomalous expansion of the abrasive will lead to reticular cracks appeared on the surface in the process of making brown aluminum oxide grinding wheels, and resulting in a lot of waste products are produced. However, calcination is an effective method to eliminate anomalous expansion of abrasives.
The toughness and grinding performance improvement of calcined brown aluminum oxide
The compressive strength of the abrasive can be improved during calcination, and the internal stress caused in the granulation process also can be made up. The abrasive tools made of it are not only durable but also sharp, so the grinding performance can be improved.
The hydrophilicity improvement of calcined brown aluminum oxide
The number of capillary on the surface of abrasive are increased, because impurities such as volatiles are cleared and low melting point substances are burned out. As such, the hydrophilicity of the material is improved.
The abrasive tool strength improvement of calcined brown aluminum oxide
Volatiles and other impurities are removed after the abrasive is processed through calcination, which improves its purity and cleanliness. Therefore, the binding force between the abrasive and the binder is increased, which improves the strength of the abrasive tools.
The appearance and cutting ability improvement of calcined brown aluminum oxide
After calcination, the magnetic material is easy to be removed, which greatly reduces its content and improves the appearance of abrasive tools. Thus, this material delivers better cutting ability and overall performance.
