Alumina grinding balls refer to materials such as bauxite, roller powder, industrial alumina powder, and high-temperature calcined Alpha alumina powder as raw materials, after batching, grinding, powdering (pulping, mud making), forming, and drying , Sintering and other processes, mainly used as a grinding medium and widely used ball stone.
According to different specifications, there are different types of alumina grinding balls. Among them, the specific gravity (density) of 92 alumina balls is above 3.60, the alumina content is above 92%, and the iron content is low. The same raw material, the same formula, and the same firing temperature, the smaller the fineness of the powder after the raw material is ground, the higher the specific gravity and the better the wear resistance.
Because of its high strength, high hardness, high wear resistance, high specific gravity, small size, high temperature resistance, corrosion resistance, pollution-free and other excellent characteristics, it is widely used in different types of ceramics, enamel, glass, chemical industries, etc. The fine processing and deep processing of thick and hard materials are the grinding bodies of ball mills, pot mills, vibration mills and other fine grinding equipment. Its grinding efficiency and wear resistance are much better than ordinary ball stones or natural pebbles. Compared with natural stone balls and ordinary porcelain balls, the wear resistance of 92 alumina balls is increased by 20-40 times, the grinding efficiency is increased by 40-60%, and the effective efficiency of the mill is increased by 30-40%. The overall cost is natural stone balls. 40-60% of the mill’s life, the life span of the mill is increased from 2 years to 6-8 years.
Alumina ceramic ball is a kind of white pellet with many capillary channels, because it contains many capillary channels inside, and the surface of these channels has high activity, 92 alumina ball, so it can resist gas, The moisture of steam and liquid plays a role of adsorption.
With this unique performance, alumina ceramic balls have been widely used in petrochemical, oil refining, electronics, ethylene, air and other drying devices. Can such products be cleaned? How to clean the advantages of alumina ceramic balls?
The main body of the cleaning agent for alumina ceramic balls is a low-speed rotating cylinder immersed in a water tank with two bearings. In the cylinder, there are alumina ceramic balls of the same specification, which fall freely by gravity at such a height, and compare with other balls. There is a collision, and thus a constant cycle.
Application of alumina products in various industries:
The flexural strength of Al2O3 porcelain sintered products can reach 250MPa, and the hot-pressed products can reach 500MPa. The Mohs hardness of Al2O3 ceramics can reach 9, and it has excellent wear resistance, so it is widely used in the manufacture of tools, ball valves, grinding wheels, ceramic nails, bearings, etc. Among them, Al2O3 industrial valves are widely used.
In terms of electronics and electricity, there are various Al2O3 ceramic base plates, substrates, ceramic membranes, transparent ceramics, and various Al2O3 ceramic electrical insulating ceramics, electronic materials, magnetic materials, etc. The price of alumina balls, of which Al2O3 transparent ceramics and substrates The film is widely used
In chemical applications, Al2O3 ceramics also have more common uses, such as Al2O3 ceramic chemical filler balls, inorganic microfiltration membranes, corrosion-resistant coatings, etc. Among them, Al2O3 ceramic membranes and coatings have been studied and applied.
Alumina balls can be seen everywhere in building sanitary ceramics, such as Al2O3 ceramic lining bricks, grinding media, rollers, ceramic protection tubes, and Al2O3 refractory materials. Among them, Al2O3 ball milling media is widely used.
Alumina ceramics is currently one of the most researched and widely used materials in new materials. In addition to the above applications, the density of alumina balls is also commonly used in other high-tech fields, such as aerospace, high-temperature industrial furnaces, Composite enhancement and other fields.
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