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Calcined kaolin is widely used in refractories, mainly in the following aspects:

Mullite, a diatomaceous mineral also known as quartzite or quartzite rock, is a natural stone and a type of quartz. It possesses excellent insulating properties and can be used to manufacture many electronic products and electrical equipment.

Calcined kaolin, also known as metakaolin, is produced by heating washed kaolin clay to high temperatures, removing chemically bound water, and improving its purity and whiteness. The result is a fine, white, non-toxic powder with excellent chemical stability, abrasion resistance, and dispersion properties.

Precision casting, also known as investment casting, is a manufacturing process that produces highly accurate and complex metal parts. One key material that enhances the quality of molds in precision casting is mullite powder.

In high-temperature environments, the performance of ceramic materials determines whether they can operate stably over long periods. Mullite (Al6Si2O13), an exceptional high-temperature ceramic material, is celebrated for its extraordinary heat resistance, low thermal expansion, and impressive mechanical strength.