High alumina refractory ceramic balls are widely used in different types of ceramics, enamels, glass, Fine machining and deep machining of thick and hard materials in chemical and other factories.
Taking the high-alumina refractory ceramic balls with a content of 92% as an example, its specific gravity (density) should reach more than 3.60, the alumina content should reach more than 91.5%, 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.
The proportion of high-alumina refractory ceramic balls are mainly affected by powder and sintering. Factors such as burning raw (uncooked), too thick powder, and adding miscellaneous materials will lead to insufficient proportion of ball stone. Ball stones with low specific gravity are not wear-resistant and are prone to cracking, but high specific gravity does not mean that ball stones are necessarily wear-resistant, because over-sintered ball stones can also achieve higher specific gravity.
The most important quality manifestation of ball stone is wear resistance. Some testing institutions can also do wear tests, but the data is for reference only, because the environmental conditions for testing in the laboratory are very different from the environment in production. It is water milled, and many manufacturers use it for dry grinding; secondly, many times no other raw materials are put into the test, only the friction between the balls and the balls, and various raw materials are added in the actual production process.
Refractory Porcelain Ball Refractory ball is made of industrial alumina and refractory kaolin as the main raw materials, through scientific formula, forming and high temperature calcination.
Features of high aluminum refractory ceramic balls:
1. Good chemical stability, no chemical reaction with materials;
2. High mechanical strength and long service life;
3. Good high temperature resistance, the highest heat resistance temperature of refractory ceramic balls can reach 1900 degrees. It is especially suitable for high and low temperature shift furnaces, reformers, hydroconverters, desulfurization tanks and methanation furnaces in chemical fertilizer plants, and plays the role of dispersing gas and liquid, and supporting, covering and protecting catalysts. Refractory balls can also be used in hot blast furnaces and heating conversion equipment in the steel industry.
