The application of white corundum abrasive in refractories is extensive and important, mainly in the following aspects:

I. Manufacture of refractory bricks

White corundum can be used to manufacture refractory bricks such as high alumina bricks and mullite brick. These refractory bricks have excellent properties such as high-temperature strength, thermal shock resistance and chemical erosion resistance, and are widely used in high-temperature industrial fields such as steel, glass and ceramics. The high hardness and wear resistance of white corundum can significantly improve the service life of refractory bricks.

II. Refractory castable

White corundum is an important raw material for producing refractory castables such as high alumina castable and mullite castable. These castables have high temperature strength, thermal shock resistance and chemical erosion resistance, and are suitable for lining and repairing of various high temperature furnaces. The addition of white corundum can improve the density and strength of castable and reduce its linear change rate.

III. Refractory fibers

White corundum can be used to make refractory fibers, such as alumina fibers and mullite fibers. These fiber materials have the characteristics of light weight, high temperature resistance and thermal shock resistance, and can be used for high temperature heat insulation and heat preservation.

IV. Refractory coatings

White corundum can be used to make refractory coatings, such as alumina coatings and mullite coatings. These coatings have excellent high temperature resistance and chemical corrosion resistance, and can be used to protect metal and nonmetal materials from high temperature and corrosion.

V. Refractory additives

White corundum can also be used as an additive for refractories. By adding proper amount of white corundum, the properties of refractories can be effectively improved, such as increasing the density of castable, improving the high temperature resistance of refractories and reducing the linear change rate of refractories.

VI. Other refractory products

White corundum is also used to manufacture various refractory components such as high-temperature containers, pipelines, furnace linings, furnace tops and furnace doors. In addition, white corundum micropowder can be used to manufacture special refractories such as high-temperature ceramics and cathode insulators of electron tubes.

Advantages of white corundum in refractories

High-temperature stability: White corundum has a very high melting point (about 2050°C) and can remain stable for a long time in high-temperature environment.

Corrosion resistance: white corundum has high corrosion resistance to corrosive substances such as acid and alkali, and will not be corroded by most chemicals.

Wear resistance: White corundum has high hardness and wear resistance, and can withstand the impact of high-speed fluids and particles.

Construction performance: white corundum refractory can be constructed by pouring and spraying, and the construction process is simple and fast.

White corundum abrasive has an irreplaceable position in the field of refractories because of its excellent performance, which provides high-performance and high-reliability material support for high-temperature industry.