A kind of alumina ceramic ball and preparation method thereof
A technology of alumina ceramics and alumina, applied in the field of ceramic balls, can solve the problems of high resource consumption, poor product quality, and general wear resistance, and achieve the effects of low wear, increased specific gravity, and high wear resistance
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[0135] Correspondingly, the present invention also provides a method for preparing alumina ceramic balls, figure 1 For the preparation of the process flow diagram, the following steps are included:
[0136] S101: Weighing raw materials required for manufacturing alumina ceramic balls.
[0137] The main raw material formulations required for the manufacture of alumina ceramic balls are as follows:
[0138] High temperature ceramic roller waste 40-60%;
[0139] Aluminum oxide powder 30-50%;
[0140] Waste zirconium powder 2-10%;
[0141] Barium carbonate 2-6%;
[0142] Dolomite 0.1-2%;
[0143] Bentonite 1-4%.
[0144] The present invention uses ceramic roller rod waste as the main raw material, adds a certain amount of alumina powder and waste zirconium powder, and uses barium carbonate as the main flux, so that the alumina ceramic ball has high strength, high wear resistance and toughness, and is suitable for dry The high-impact and high-temperature environment not only...
Embodiment 1
[0190] Weighing raw materials 40% high temperature ceramic roller waste, 46% alumina powder, 6% waste zirconium powder, 4% barium carbonate, 0.8% dolomite, 3.2% bentonite;
[0191] Put the raw material into a ball mill and mill it for 40 hours to obtain a slurry with a grinding particle size of ≦5 μm and a moisture content of 30%, and the fluidity of the slurry is controlled at about 30 seconds;
[0192]The slurry is stirred and removed by an iron remover to obtain a preliminary treated slurry;
[0193] Transfer the preliminarily treated slurry to the spray drying tower for spray powder processing to obtain powder for the manufacture of alumina ceramic balls, wherein the particle size range of the powder is D>40 mesh, 1%, and 40 mesh≦ D≦60 mesh is 37%, 60 mesh
[0194] Put the powder into the ball machine and roll it into ceramic balls;
[0195] The ceramic balls are placed in a kiln for firing at a firing temperature of 1450-1480° C. to ...
Embodiment 2
[0197] Weighing raw materials 46% high temperature ceramic roller waste, 42% alumina powder, 8% waste zirconium powder, 2% barium carbonate, 1.5% dolomite, 0.5% bentonite;
[0198] Put the raw material into a ball mill and mill it for 55 hours to obtain a slurry with a grinding particle size of ≦4 μm and a moisture content of 35%, and the fluidity of the slurry is controlled at about 35 seconds;
[0199] The slurry is stirred and removed by an iron remover to obtain a preliminary treated slurry;
[0200] Transfer the preliminarily treated slurry to the spray drying tower for spray powder processing to obtain powder for the manufacture of alumina ceramic balls, wherein the particle size range of the powder is D>40 mesh, 0.5%, and 40 mesh≦ D≦60 mesh is 42%, 60 mesh
[0201] Put the powder into the ball machine and roll it into ceramic balls;
[0202] The ceramic balls are placed in a kiln for firing at a firing temperature of 1450-1480° C. ...
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