Alumina ceramic valve disc

Advantages of alumina ceramic valve discs

Alumina ceramic valve discs have extremely high hardness, wear resistance, and compressive strength, which can effectively extend the service life of the valve. An excellent high temperature ceramic material due to its high temperature stability. It is the most commonly used type of high-grade ceramic, with purity ranging from 95%-99.5%.

Applications of Alumina

Alumina ceramics are characterized by extremely high hardness and wear resistance, low erosion levels, high temperature resistance, corrosion resistance and biological inertness. Therefore, Al2O3 ceramic products are ideal for many industries, such as:

electrical wires and conduits;

Machinery Seal;

machine parts;

High temperature electrical insulators;

High voltage insulators;

Electronic component substrates;

roller and ball bearings;

wear-resistant lining;

semiconductor parts;

Precision shafts and shafts in high wear environments.

Alumina ceramic properties

1. Excellent electrical insulation (1×10 14 ~ 1×10 15 Ω cm);

2. Medium to ultra-high mechanical strength (300 to 630MPa);

3. Extremely high compressive strength (2000 to 4000MPa);

4. High hardness (15 to 19 GPA);

5. Medium thermal conductivity (20 to 30W/MK);

6. High corrosion and wear resistance;

7. Good grinding performance;

8. Low density (3.75 to 3.95g/cm3);

9. Without mechanical load, the operating temperature is 1000 to 1500°C;

10. Biological inertia and food compatibility.

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