The invention relates to a structure of a
grinding material composited with a novel high-shrinkage
engineering ceramic binder for the preparation of a
grinding wheel and a preparation method thereof. The preparation method is characterized in that: the high-strength high-shrinkage
engineering ceramic binder which is prepared from clay,
feldspar, boracic glass,
bentonite and
manganite is composited with the mixed
grinding material, the opacifying effect of the boracic glass promotes the glass
nucleation, fluxing agents
bentonite and
manganite powder promote the preparation of the high-strengthhigh-shrinkage
engineering ceramic structure, and the ceramic binder for the
steel ball grinding wheel is prepared through carrying out cold-press high-pressure molding, and
sintering at a certain temperature. Compared with market products, the strength, the combination degree, the
elastic modulus and the linear velocity in usage of the
steel ball grinding wheel are greatly improved, the geometric dimension of the
steel ball grinding wheel is stable, the steel ball grinding wheel which has a high strength, a high
hardness and a uniform
tissue density and has the advantages of large grinding ratio, high
fineness and no workpiece burning under
high speed grinding conditions is a special grinding wheel for a novel high efficiency steel ball. So the steel ball grinding wheel can be widely applied to the mechanical steel ball manufacturing industry and is easy to be automated in the industry.