Alumina Ceramic Plate 380GPa Alumina Ceramic Disc 80HRC
Any Sizes Circular Plate Alumina Ceramic Disc
Description:
High purity alumina ceramic sealing disc for the pump seal has been recognized for its safe, outstanding properties and precise operation, thereby creating a perfect sealing effect. Furthermore, aluminum oxide ceramic (alumina) is a very cost-effective material, so alumina ceramic sealing discs have been widely used. With comparison with traditional seal disc, it can work smoothly even if after 500,000 cycles or higher due to its unmatched wear resistance and exceptional mechanical strength. As the ceramic sealing disc is a key component in oil, water, gas sealing system, we always ensure that we manufacture best-quality products .
Technical Parameters:
| Mechanical behavior | Unit | Al2O3 | SiC | Si3N4 | ZrO2 |
| Colour | ———— | Light yellow | Black | Black | White,Black |
| Density | g/cm3 | 3.95 | 3.15 | 3.2 | 6 |
| Bending strength | MPa | 300～400 | 400～500 | 800～1200 | 950～1200 |
| Elastic modulus E | GPa | 380 | 350 | 300-320 | 210 |
| Poisson's ratio | 0.22 | 0.14 | 0.26 | ||
| Hardness | Hv | 1800 | 2000～2500 | 1400～1700 | 1100～1300 |
| HRC | 80 | 85～90 | 75～80 | 70～75 | |
| Fracture toughness | MPa·m1/2 | 3.0～4.0 | 3.0～4.0 | 5.0～7.0 | 8.0～10.0 |
| Maximum use temperature | ℃ | 1000 | 1300 | 400 | 400 |
| Thermal expansion coefficient | 10-6/℃ | 8.4 | 4 | 3.3 | 10.3 |
Advantages:
1.High purity: 99.7% alumina purity make sure high working temperature.
2. We can make very tight tolerance by machnning, surface polishing and glazing are available.
3.Very small and very big sized ones can be made.
4. Inspection: each single plate will be checked before shipping.
Application:
Ceramic sealing discs are widely used in a variety of water faucets, water taps, sanitary sealing systems, regulating systems, sealing valves, water /oil/gas pumps, and so on.
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