yixing haiyu refractory co.,ltd
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zirconia balls special for grinding machine best grinding medium used in bearing seals
product name:zirconia balls
model:HY-YHG
Product Features :
At room temperature, it has the advantages of high strength and high toughness, high density, good wear resistance, high temperature and corrosion resistance, high stiffness, non-magnetic, electrical insulation, and thermal expansion coefficient close to steel. The strength and hardness of zirconia ceramic balls are almost unchanged at 600 °C. Yttrium oxide was used as stabilizer, which was made by special molding process and high temperature baking phase-fixing process.
Uses :
It is especially suitable for vertical stirring mill, horizontal rolling ball mill, vibration mill and various high-speed rod-pin sand mills. Wet and dry ultra-fine dispersion and grinding of various slurry and powder that require rejection of cross-contamination. The application areas are as follows :
1, wear-resistant, corrosion-resistant products : paint, ink, paint, paper, solar cells, non-metallic minerals
2, high strength, high toughness products : magnetic materials, piezoelectric ceramics, dielectric ceramics, electronic materials
3, to prevent pollution : medicine, food, cosmetics, pigments
Ceramics : electronic ceramics, refractory ceramics, structural ceramics
physical and chemical criterion:
| Performance | unit | parameter |
| Component | Wt% | 94.6%ZrO2,5.2%Y2O3 |
| Density | g/cm3 | 5.95-6.00 |
| (HV)Hardness | GPa | >11 |
| Elasticity Modulus | GPa | 200 |
| Thermal Conductivity | W/m.k | 3 |
| Coefficient of Thermal Expansion | 10*10-6/℃(20-400) | 9.6 |
| Bending Toughness | MPam1/2 | 8 |
| Grain Size | Um | ≤0.5 |