Views: 1 Author: Site Editor Publish Time: 2022-04-04 Origin: Site
The density and weight of zirconia ball determine its price, and different densities and weights are suitable for different industries and materials. For example, zirconia ball with large weight and high density can be used to grind materials with high viscosity, while zirconia ball with small density and small weight can be used to grind materials with low viscosity, especially in vertical grinder, zirconia ball with high density will sink. So we should pay more attention to this factor.
The wear resistance of zirconium beads is 30-50 times that of glass beads and about 5 times that of zirconium silicate beads. TZP zirconium beads have higher density than other ceramic grinding media. The grinding efficiency is 6-8 times that of glass beads and 2-3 times that of zirconium silicate beads. It can improve the solid content of materials or increase the material flow.
It is mainly used for ultra-fine grinding and dispersion of materials requiring "zero pollution" and high viscosity and high hardness, such as electronic ceramics, magnetic materials, zirconia, silicon oxide, zirconium silicate, titanium dioxide, food, pigment, dye, ink and special chemical industries.
At present, the preparation processes of tzp-95 zirconia beads mainly include rolling forming and titration forming. The rolling forming efficiency is high, but the prepared product quality is difficult to grasp, the damage rate of finished products is large, and the phenomenon of broken beads is also very Ming obvious in the process of use. Although the yield of the products prepared by titration molding is relatively low, the finished microspheres have high sphericity and good comprehensive properties.
Zirconia has good chemical properties. It is a weak acidic oxide, which has sufficient stability to alkali solution and many acidic solutions (except hot concentrated H2SO4, HF and H3PO4). The crucible made of ZrO2 can melt many metals such as potassium, sodium, aluminum and iron. It is also stable to sulfide and phosphide. Many silicide melts and slag also have no effect on sintered ZrO2.