In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a high-performance ceramic grinding ball, which improves the strength of the alumina ball and reduces the abrasion, and can meet the use requirements of high-speed grinding machines such as sand mills. At the same time, the invention also provides the preparation method of the above-mentioned high-performance ceramic grinding balls, and discloses a new ball-making method, which is applicable to all roll-formed balls, and solves the problems that the existing roll-formed ceramic balls are generally low in strength The problem.
The technical solution of the present invention is as follows:
A high-performance ceramic grinding ball, the raw materials are composed of 84-93% alumina, 4-12% silica, 1.8-2.5% light calcium carbonate, 0.25-0.6% magnesium oxide, 0.03-0.05% Titanium dioxide. Preferably, the high-performance ceramic grinding ball is further added with auxiliary raw material ammonium polyacrylate, and the added amount of the ammonium polyacrylate is 1.0-5.0% of the total mass of the raw materials. Preferably, the alumina is fine-grained alumina; the grain size of the fine-grained alumina is less than 1.5 μm, preferably 0.6-1.0 μm. Preferably, the high-performance ceramic grinding balls have a grain size of 1.0-1.5 μm.
