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The characteristic of brown fused alumina is that it contains a lot of impurities and is brown in color. It has high hardness, good toughness, and can withstand large grinding forces. It is suitable for grinding materials such as carbon steel, alloy steel, hard bronze, and is cheap and widely used. Brown fused alumina grinding wheels are mainly used for grinding ordinary material workpieces.

High temperature calcination of aluminum oxide powder is a common method for preparing alumina. Aluminum oxide is an important inorganic compound widely used in fields such as electronics, architecture, and chemistry. This article will introduce the calcination principle, influencing factors, applications, and other aspects.

Aluminum hydroxide is non-toxic, halogen-free, does not produce corrosive products, and has a low price. However, its application is limited by two aspects. Firstly, like other fillers, it does not have a reinforcing effect.