Dongguan Ming Rui Ceramic Technology Co.,ltd
Dongguan Ming Rui Ceramic Technology Co., Ltd
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Alumina Al2O3 Ceramic Cylinder Sleeve / Bushings Sleeves / Sealing Ring Parts
Product Description
Advantages of Alumina Ceramic Cylinder Sleeve / Bushing / Sealing Ring:
1. Refractory.
2. Long Service Life.
3. Good Polished Surface.
4. Superior Mechanical Strength.
5. High Corrosion and Wear Resistance.
6. Good Insulation Performance Precision.
7. High Temperature and Pressure Resistance.
8. High Purity Zirconia and Alumina Ceramic Material.
They deliver 10 times longer working life than metal rods.
Properties Sheet:
| Properties | Units | 95 Alumina | 99 Alumina | Zirconia |
| Density | ɡ / cm3 | 3.65 | 3.92 | 5.95 - 6.0 |
| Water Absorption | ％ | 0 | 0 | 0 |
| Coefficient of Thermal Expansion | 10-6 / K | 7.9 | 8.5 | 10.5 |
| Modulus of Elasticity Young’s Mod | Gpa | 280 | 340 | 210 |
| Poisson’s Ratio | / | 0.21 | 0.22 | 0.3 |
| HV Hardness | Mpa | 1400 | 1650 | 1300 - 1365 |
| Flexural Strength @ Room Temperature | Mpa | 280 | 310 | 950 |
| Flexural Strength @ 700℃ | Mpa | 220 | 230 | 210 |
| Compressive Strength@Room Temperature | Mpa | 2000 | 2200 | 2000 |
| Fracture Toughness | Mpa * m½ | 3.8 | 4.2 | 10 |
| Heat Conductivity @ Room Temperature | W / m * k | 18 - 25 | 26 - 30 | 2.0 - 2.2 |
| Electrical Resistivity @ Room Temperature | Ω*mm2 / m | ＞1015 | ＞1016 | ＞1015 |
| Max Application Temperature | ℃ | 1500 | 1750 | 1050 |
| Resistance to Acid Alkaline | / | High | High | High |
| Dielectric Constant | / | 9.5 | 9.8 | 26 |
| Dielectric Strength | KV / mm | 16 | 22 | / |
| Thermal Shock Resistance | Δ T ( ℃ ) | 220 | 180 - 200 | 282 - 350 |
| Tensile Strength @ 25℃ | Mpa | 200 | 248 | 252 |
Detailed Images
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Packaging and Shipping
Alumina Ceramic Cylinder Sleeve / Bushing / Sealing Ring will be packed in a bubble bag individually, then separated by a foam, finally put in standard export carton packing, or OEM packing.
Shipped by Air ( DHL, TNT, UPS, Fedex, EMS ), or Sea transportation.
Company information
Who Are We?
Mingrui has professional OEM experience in manufacturing industrial ceramic parts for so many
years. We can make the products according to your drawings, custom the size, thickness and other parameters.
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What Do We Do?
We have very advanced technologies in the production of zirconia and alumina ceramic nozzle, rod, ring, tube, shaft, plate, sleeve, valve, plunger, bearing, and semiconductive ceramics etc.. They are applicable to Electrical, Appliance, Oil & Gas, Energy & Power, Food & Medical, Agriculture, Aerospace,
even other high-end fields.
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Our products with some certificates, such as , CE, TUV, etc..
Factory Show
Production Process Show
One-stop production, from the raw material powder to final product.