Alumina grinding ball Refers to the use of bauxite, roller powder, industrial alumina powder, high-temperature calcined alpha alumina powder and other materials as raw materials, through batching, grinding, powder (pulp, mud), molding, drying, firing, etc. It is produced by the process and is widely used mainly as a grinding medium.
Grinding ball
Ball mills are widely used in metallurgy, mining, electric power, building materials, chemical and other fields, and are the most commonly used crushing equipment. Grinding media are balls or cylindrical objects rolling in a ball mill. The grinding media of ordinary ball mills are mainly metal balls and cylinders, while in the ceramic production industry, ceramic grinding media are mainly used, followed by natural flint and pebbles. The ceramic grinding media listed in my country mainly include alumina, zirconia, silicon carbide, silicon nitride and other series.
Alumina grinding ball advantages:
Alumina grinding ball is an important engineering ceramic, which is a high-tech product. Due to the characteristics of suitable hardness, moderate density, wear resistance, corrosion resistance, low price, and the introduction of metal impurities in metal balls, alumina ceramic balls are widely used in white cement, minerals, ceramics, electronic materials, magnetic materials As well as the grinding and processing of raw materials in coatings, paints and other industries, it is a high-quality grinding medium. In the building ceramics industry, the wear efficiency of alumina ceramic balls is higher than that of natural flint and pebbles. With the reduction of high-quality natural ball stone resources and the high wear rate of ordinary ceramic balls, alumina ceramic balls will be used by more and more ceramic manufacturers. Balls and high-alumina balls are generally classified as medium-alumina grinding ball with 60%-65% alumina content, medium-high-alumina grinding ball with 75%-80% alumina content, and high-alumina grinding ball with more than 90% alumina content. Among them, high alumina balls are subdivided into 90 porcelain, 92 porcelain, 95 porcelain and 99 porcelain. Due to its extremely high production cost, 99 porcelain is rarely produced in large quantities by large manufacturers, mainly by hand in some special ceramic factories.
Alumina grinding ball usage
Medium alumina grinding ball and medium and high alumina grinding ball are accepted by most ceramic factories due to their lower prices, and are mainly used for grinding ceramic blanks. High alumina balls are widely used in different types of ceramics, enamels, glass, chemical industry due to their excellent characteristics such as high strength, high hardness, high wear resistance, large specific gravity, small size, high temperature resistance, corrosion resistance, and no pollution. Such as the finishing and deep processing of thick and hard materials in factories, among which high-alumina balls with a content of 92 are the most common.
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