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Wear Resistant 99% Alumina Ceramic Parts Al2O3 Protective Cover Disc
| Place of Origin | Handan |
|---|---|
| Brand Name | Norcera |
| Certification | ISO |
| Document | Alumina Ceramics Applicatio...on.pdf |
| Minimum Order Quantity | 1 Piece |
| Price | 1$~100$ |
| Packaging Details | Wooden Cages Or Carton Box |
| Delivery Time | 10-15 Work Days |
| Payment Terms | T/T |
| Supply Ability | 200 Pieces Per Week |
Product Details
| Product Name | Alumina Ceramic Protective Cover | Color | White Or Ivory |
|---|---|---|---|
| Material | Alumina Oxide (Al2O3) | Wear Resistance | High |
| Coefficientofthermalexpansion | 5.2 - 7.9 X 10⁻⁶/°C | Manufacturing | Sintering |
| Compressive Strength | 300 - 350 Kpsi | Thermal Conductivity | 18.0 - 28.0 W/mK |
| Operating Temperature | Up To 1600°C | Tensile Strength | 28 Kpsi |
| Electrical Insulation | High | Chemical Resistance | Excellent Against Acids And Alkalis |
| Density | 3.7 G/cm³ | Hardness | Mohs 9 |
| Tolerance | Up To ±0.03mm | Surface Roughness | Ra0.4±0.1μm |
| Applications | Electrical Insulation, Mechanical Support, High Temperature Environments | ||
| Highlight | Wear Resistant Alumina Ceramic Parts |
||
Product Description
Wear Resistant Ceramic Alumina Protective Cover Blade Guard Ring Sleeve
Alumina ceramic part is produced by firing a tightly packed powder form of Al2O3 which includes some binder material. Commercially available grades range from 90% up to 99.95% with the higher purity generating somewhat higher hardness. Alumina Ceramics are the most highly regarded and widely used of the ceramic products. It is non-conductive, resistant to corrosion, and are perfect for electrical insulation. Alumina Ceramic has proven to be the best ceramic for protection of vital electrical components. It can be processed as tubing, sheets, bars, rods, discs, and many other forms depending on the requirements of the project.
The alumina classifier wheel blade guard ring is a wear‑resistant ceramic component specially designed for air classifier equipment. Fabricated from high‑purity alumina via isostatic pressing and precision sintering, it is installed on the edge of classifier rotor blades for anti‑abrasion protection.
It features extreme hardness, outstanding wear resistance and excellent chemical inertness. The ceramic guard ring effectively buffers high‑speed particle impact, prevents direct abrasion and erosion to metal rotor blades, greatly extending the service life of the classifier wheel. Low contamination property avoids impurity introduction into processed powder materials.
Strict dimensional accuracy ensures perfect assembly matching with classifier rotors. Custom inner diameter, outer diameter and thickness can be supplied according to customer equipment parameters and drawings. Widely used in ultrafine powder classification for minerals, new energy materials, chemical raw materials and other industries.
Alumina Oxide (Al2O3) Properties:
◆ High Hardness
Strong wear resistance, durable and not easy to wear.
◆ Excellent Thermal Conductivity
The thermal conductivity at room temperature is 30~40W/(m·K), which is higher than that of steel, copper and aluminum.
◆ Good Chemical Stability
Resistant to acid, alkali and salt corrosion.
◆ High Temperature Stability
Withstands 1600℃ high temperature and has high temperature stability.
| Chemical Formula | Al2O3 | |
| Mechanical | Density | 3.7 gm/cc |
| Hardness |
2000 Knoop |
|
| Tensile Strength | 28 kpsi | |
| Modulus Of Elasticity | 41 - 46 x 106 psi | |
| Flexural Strength | 51 kpsi | |
| Compressive Strength | 300 - 350 kpsi | |
| Poissons Ratio | 0.21 | |
| Fracture Toughness | 4 - 5 MPa m½ | |
| Electrical | Dielectric Strength | 212 - 220 ac V/mil |
| Dielectric Constant | 9.3 (@ 1 MHz) | |
| Volume Resistivity | > 1014 ohm-cm | |
| Thermal | Coefficient Of Thermal Expansion | 5.2 - 7.9 x 10⁻⁶/°C |
| Thermal Conductivity | 18.0 - 28.0 W/mK | |
| Specific Heat | 0.21 cal/g °C | |
| Shock Resistance | 300 °C Diff. | |
Typical Applications Include:
Wear resistant components,
High pressure nozzles,
Thermocouple tubes,
Electrical Insulators,
Corrosive labware,
Furnace fixtures,
Ballistic armor,
Thread guides,
Laser Tubes,
Pump seals.
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