Name: China Refractory Raw Material White Corundum Manufacturers Suppliers Factory - Good Price
Brand: Long Keter
SKU: 222757615

Products Description

Refractory raw material white corundum is a refined alumina powder obtained by pyrolysis and oxidation of high-quality smelted alumina. The grains are hexagonal, colorless, transparent, high hardness, good toughness, strong wear resistance, stable chemical properties and High temperature stability and other advantages. It is an excellent refractory material and abrasive, widely used in metallurgy, building materials, ceramics, chemicals, electronics, energy and other fields.

White corundum has high hardness and density, with a hardness of 9.0 on the Mohs hardness scale, a Morse Cup compressive strength of more than 200MPa, and a density of this material of 3.95g/cm³. White corundum has good stability at high temperatures, its melting point reaches above 2050°C, and has good high temperature resistance. At the same time, its chemical properties are stable, not easy to react with other chemicals, and has a long service life.

White corundum is prepared using alumina bauxite as raw material, and is produced through multiple processes such as calcination, crushing, drying, screening, artificial selection, and smelting. Products of different levels of white corundum particle size and shape can be prepared according to customer needs. During the production process, high-temperature heat treatment, manual peeling, copying and other technologies are used to improve product quality and ensure the fineness and wear resistance of white corundum.

1. White corundum abrasive

White corundum abrasives are the most common white corundum products and are mainly used for surface grinding, polishing, grinding and polishing of castings, etc. The main specifications are F230-F1200.

2.Polycrystalline white corundum abrasive

Polycrystalline white corundum abrasive is a high-performance artificial abrasive with uniform particle size, stable cutting performance, and no overheating during the grinding process. Mainly used in high-precision grinding and precision machining fields. The main specifications are F230-F1200.

3.Fine white corundum sand

Fine white corundum sand is a refined fine-grained white corundum product with a particle size of less than 320 mesh and a white powder or granular appearance. It is mainly used in various types of high-end ceramics, glass products, high-quality coatings and electronic materials.

4.Alumina abrasives

Alumina abrasives are pebble-shaped, spherical, and other shapes made from high-purity alumina through carbon arc smelting. They have high hardness, high density, and low fineness. The particles are hexagonal. Compared with natural abrasives, their grinding properties are better. Stronger capabilities and longer service life. Mainly used for efficient polishing and turning of ordinary steel, stainless steel, high-speed steel, titanium alloy, copper, aluminum, reinforced ceramics, marble, glass and other materials.

Products Parameters

Chemical composition	Al₂O₃	≥99.3 %
	Fe₂O₃	≤0.1 %
	Na₂O	≤0.4 %
	SiO₂	≤0.15 %
Mosh Hardness		9
Bulk density		1.4-2.1 g/cm³
Specific Gravity		3.9-4.1 g/cm³
Melting point		2250 ℃
Maximum service temperature		1900 ℃
Color		White

Products Advantages

1. High intensity

The high strength of white corundum allows it to be used in the manufacture of complex refractory ceramics and other high-strength ceramic workpieces. These workpieces can be used in high-strength and high-corrosion-resistant industrial fields such as high-temperature melting furnaces, high-pressure pumps, and high-speed ammunition.

2. Good heat resistance

White corundum is not easy to melt and deform at high temperatures and has excellent heat resistance. Therefore, it is widely used as lining, insulation and support materials for high-temperature equipment such as high-temperature melting furnaces, furnaces, and sintering furnaces. At the same time, white corundum can also be used in chemical reactors, furnace nozzles, electrolytic cells and other equipment in high-temperature acid and alkali environments.

3. Good chemical stability

White corundum not only has high temperature stability, but also shows good chemical stability in acidic and alkaline environments. It can resist the erosion of strong acids such as sulfuric acid, hydrofluoric acid, and hydrochloric acid, and can also withstand the erosion of alkaline substances such as sodium hydroxide and potassium hydroxide. Therefore, it can be used as a manufacturing material for pipes, valves, reactors and other equipment in the chemical industry.

4. Has high wear resistance

White corundum has high surface hardness, is not prone to wear when in contact with other materials, and has excellent wear resistance. For example, white corundum has good advantages in applications such as water pumps, fans, and mechanical parts.

Products Description

1. Refractory materials

White corundum can be used as one of the main components of refractory materials and is used in various static or dynamic iron melting fields, refractory bricks, furnace linings, refractory coatings, amorphous refractory materials, refractory ceramics, etc. Its high temperature performance makes it widely used in various high temperature industrial fields, such as steel, aluminum, cement manufacturing, manufacturing, etc.

2.Abrasives

White corundum is also widely used as a high-performance abrasive. For example, it is used to make artificial abrasives, ordinary abrasives, grinding bricks, sandpaper, grinding wheels, steel products for cutting, grinding, polishing, etc., which can greatly improve product quality and extend product life. White corundum can also be made into coatings, which have special wear resistance, acid resistance, strong alkali resistance, and anti-corrosion properties. Long-term use will not cause the coating to deteriorate or fall off.

3.Others

White corundum can also be used for polishing, skin scraping, and scratch removal of various products. In addition, white corundum can also be used as a raw material for precision casting and high-end ceramic products.