Diamond Polished Wear Resistance Precision Zirconia Ceramic ring
Description:
Zirconia ceramic has the advantages of super hardness, high wear-resisting,good corrosion resistance and electric insulation,resistant acid-base,high intensity,thermostable,high temperature tolerance,good insulation,high strength,precision process,high mechanical strength,good chemical stability.
Zirconia ceramic seal ring has proven itself to be useful and helpful for exhaust valves and flaps. Its excellent surface properties, high strength, low Young’s modulus and high abrasion resistance are paired with a thermal expansion coefficient comparable to steel, making it an ideal material for composite steel bearings working at high temperatures.
Technical Parameters
| Performance | Unit | Typical value |
| Density | g/cm3 | >6.0 |
| HV Hardness | Kg/mm2 | >1300 |
| Compressive Strength | MPa | 5500 |
| Flexural Strength | MPa | 1250 |
| Modulus of Elasticity | Gpa | 200 |
| Thermal Conductivity | W/(m.k) | 3(20-400℃) |
| Thermal Expansivity Cofficient | 10^-6K^-1 | 10 |
| Facture Toughness | Mpa.m0.5 | 8 |
| Grain Size | um | 0.5 |
Principal characteristic
1. Extremely good wear resistance;
2. Never rust and good corrosion resistant;
3. Excellent sealing performance and oil scraping;
4. High mechanical strength and high hardness;
5. Long service life
Application
1. Precision ball valve balls and seats.
2. Deep well down-hole valves and seats.
3. Rollers and guides for metal tube forming.
4. Hot metal extrusion dies.
5. Marine pump seals and shaft guides.
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