Zirconia beads have a pearl-like luster and a smooth working spherical surface. They are a good product among the grinding media. They are especially suitable for vertical stirring mills, horizontal rolling ball mills, vibration mills and various high-speed pin sand mills. Zirconia beads use yttrium oxide as a stabilizer and are made by a special molding process and a high-temperature firing and phasing process.
1. Raw materials
First of all, we must choose good raw materials. The quality of zirconia powder directly affects the quality and grinding performance of zirconia beads. The particle size of the zirconia powder raw material will also directly affect the wear resistance of the beads.
2. Sintering aid
The second is the sintering aid and the sintering process. The sintering aid is used to reduce the sintering temperature, thereby improving the microstructure of the zirconia ceramic and improving its wear resistance. Among them, the temperature of the products we control during the sintering process is higher than that of other manufacturers in the industry, and the products are more stable and compressive. In addition, we strictly control the gates of each production technology to avoid the appearance of substandard products.
3. Forming
There are currently two forming methods on the market: roll forming and isostatic pressing. These two molding technologies have changed other molding defects such as hollow and layered unevenness.
