Industrial Electrical Insulation Al2O3 Alumina Ceramic Seal Ring
Industrial Electrical Insulation Al2O3 Alumina Ceramic Seal Ring
Description:
We manufacture & supply advanced technical ceramic rings custom machined to your specific design. Ceramic rings are finding their way into more and more application due to their highly desirable mechanical, thermal, and electrical properties. Ceramic rings can be used in extreme environments unlike many other materials. Precision Ceramics has a wide assortment of ring sizes available.
Technical Parameters:
| Test item/Unit | Numerical Value | Test item/Unit | Numerical | ||||
| Product Material | Alumina | Zirconia | Product Material | Alumina | Zirconia | ||
| Component Content % | ≥99% | ≥95% | ≥90% | Volume Resistance MM | >1012 | >1012 | >1012 |
| Sintering Temp ℃ | 1780-1800 | 1650-1680 | 1550-2600 | Bending Strength Mpa | 400 | 320 | 1100 |
| Specific Gravity g/cm3 | ≥3.8 | ≥3.6 | >6 | Thermal Expansion Coefficient'10' | 6.8-8.0 | 6.2-8.5 | 6.9-10 |
| Breakdown Voltage Strength kv/mm |
15 | 15 | 15 | Roughness um | ≤0.8 | ≤0.8 | ≤0.8 |
| Bibulous Rate% | <0.01 | <0.01 | <0.01 | Mirror Polished Ra | ≤0.05 | ≤0.1 | ≤0.05 |
| Anti Pressure Mpa | 3700Mpa | 2400Mpa | 5000Mpa | Thermal Conductivity W/m.k | 25 | 20 | 25 |
| Hardness Hra | ≥88 | ≥82 | ≥88 | Temperature Resistance ℃ | 1700 | 1600 | 1800 |
Advantages:
1. High heat resistance : Alumina ceramic has excellent thermal stability,which means that it is widely used in areas where resistance to high temperatures is essential.
2. Good wear resistance : Alumina ceramic is the material of choice for alumina wear parts.
3. High corrosion resistance : It is insoluble in water and only slightly soluble in strong acid and alkaline solutions. Good chemical stability of alumina leads to high corrosion resistance.
Application:
1. Rotating bearing balls and rollers.
2. Cutting tools.
3. Jet Engine moving parts.
4. Jet Engine wear parts.
5. Turbine blades, vanes, buckets.
More pictures:
Packaging:
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