CNC lathe machined precision zirconia ceramic ring
CNC lathe machined 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.
Today bearing bushes for exhaust flaps work without displaying any signs of wear at operating temperatures reaching 500 °C, i.e. in environments where conventional materials fail or demonstrate a significantly shorter service life. The outstanding thermal properties of zirconium oxide ceramic material combined with our expertise in precision components result in the perfect solution for exhaust flap bearings.
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. Low thermal conductivity
2. High density
3. Chemical inertness
4. Resistance to molten metals
5. Wear resistance
6. High fracture toughness
Application
1. Deep well down-hole valves and seats.
2. Rollers and guides for metal tube forming.
3. Hot metal extrusion dies.
4. Marine pump seals and shaft guides.
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Packaging:
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