Selection method of zirconia beads

Release time：

2022-11-23 14:26

Main performance indicators of zirconia beads

2.1 Specific gravity

The larger the specific gravity of zirconia beads, the higher the grinding efficiency. High viscosity slurry should use beads with large specific gravity, such as grinding offset printing ink box inkjet ink, generally use Φ0.2-Φ0.8 zirconia beads.

2.2 Hardness

The hardness of zirconia beads is higher than that of the material. If you use Φ1.5 Y-TZP beads to grind α-Al2O3 powder, the bead loss is large and the grinding cost is high. Later, Al2O3 beads and ZTA beads were used respectively, and the effect was better. In addition, the grinding beads with high hardness also wear more on the contact parts of the equipment, but it can be optimized by adjusting the filling amount of the beads, the viscosity of the slurry, the flow rate and other parameters.

2.3 Materials

Try to choose beads with lower wear, which is not only related to the performance of the material itself, but also depends on the test conditions. The wear value provided by the ceramic bead supplier is generally regarded as the self-grinding wear value of the bead measured in the aqueous medium. If the hardness of the material is lower than that of the grinding bead, the wear value has a good correspondence with the actual wear value. It is recommended to measure the wear before using the bead to simulate the actual working conditions, so as to accurately select which bead to use.

2.4 Strength

The first condition for the successful application of zirconia beads is that they do not break during operation, which is especially important for high energy density paint grinders. The higher the flexural strength and toughness of the beads, the less likely they are to break. Zirconia beads are strength grinding media on the market.

Vickers hardness of zirconia beads

None

Effect of ball mass ratio and size zirconia ball mass ratio on ball milling effect

The planetary high-energy ball mill is used to prepare ultra-fine powder. Its working principle is that the grinding tank hits and crushes the material under the action of the ball's revolution and rotation during work. The factors affecting the ball milling effect include the ball milling time, the ball milling speed, and the solid content of the ball milling material. Among them, the ball-to-material mass ratio and different ball mass ratios are very important control parameters.

07-26

2022

How to use zirconia industrial ceramic rods correctly?

The main characteristics of zirconia industrial ceramic rods are high strength, high fracture toughness, high hardness and high density, stability, wear resistance, corrosion resistance, and high temperature resistance. So how should zirconia industrial ceramic rods be used correctly? Let me introduce it to you next.

07-26

2022

Vickers hardness of zirconia beads

In addition to Vickers hardness, the choice of zircon beads also depends on whether the grinding equipment is suitable. The higher the hardness, the lower the wear and the more wear-resistant, but the stronger the impact force on the equipment, the faster the wear on the grinding cavity of the equipment. It is also necessary to consider the properties of the ground material, whether it is difficult to grind, and consider the comprehensive cost performance.