In industries where non-conductive, rust-proof, heat-resistant, and wear-resistant components are critical, ceramic materials stand out for their exceptional strength and durability. Ceramic washers represent a significant advancement, offering unparalleled performance and longevity compared to traditional metal alternatives.
All washers serve core functions: distributing fastener loads, acting as spacers, gaskets, locking devices, or vibration dampeners. However, metal washers have inherent drawbacks: they corrode, wear down over time, and deteriorate under harsh conditions, leading to costly maintenance and replacements, especially in critical applications.
Ceramic washers eliminate these problems:
1. Exceptional Durability: Made from hardened natural materials, they resist wear, aging, and atmospheric degradation.
2. Superior Resistance: Immune to rust, highly resistant to heat and chemicals.
3. Electrical Insulation: Provide excellent electrical isolation, crucial for insulating connections.
4. Secure Bonding: Once installed (especially alumina types), they lock securely in place, ensuring a tight, seamless bond between surfaces.
5. Versatility: Can be precisely molded into any size and complex shape needed for specific applications.
Alumina ceramic washers (Al₂O₃) are the most widely used type. They replicate all standard washer shapes (flat, flanged, grooved, slotted, tubular) and offer:
High Mechanical Strength & Wear Resistance: Withstands high-pressure and abrasive environments.
Excellent Chemical Stability: Resists corrosion from most chemicals.
Superb Electrical Insulation Properties: Ideal for insulating electrical connections.
Proven Reliability: The preferred choice for harsh, high-pressure, and hazardous conditions.
Zirconia ceramic washers (ZrO₂) offer distinct advantages:
Exceptional Strength & Toughness: Higher fracture toughness than alumina.
Fine-Grained, Smooth Surface: Enables superior sealing capabilities between surfaces.
Outstanding Heat Resistance: Usable up to 2100°C (approx. 3812°F), melting point 2700°C (approx. 4900°F).
Premium Aesthetic: Often has a visually appealing finish.
Ceramic technology allows us to manufacture virtually any washer type found in metal, including:
Flat Washers
Locking Washers
Vented Washers
Belleville Washers (Disc Springs)
Basic ceramic materials are derived from natural elements, hardened through high-temperature processes to remove impurities and create strong chemical bonds. This results in an extremely robust material essential for demanding industrial and manufacturing processes.
Upgrade to Ceramic Washers Today
Experience the long-term benefits of ceramic washers: eliminate corrosion, reduce maintenance, enhance safety, and ensure reliable performance in the toughest environments. Ceramic washers are a vital step forward in construction and assembly operations.
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Email: glzmdy@163.com
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High-performance ceramic washers designed for demanding industrial applications requiring non-conductive, rust-resistant, heat-resistant, and wear-resistant solutions.
| Property | Specification |
|---|---|
| Material Composition | Al₂O₃ (Alumina) |
| Density | 3.7 - 3.9 g/cm³ |
| Hardness (HV) | 1500 - 1650 |
| Flexural Strength | 300 - 400 MPa |
| Compressive Strength | 2000 - 2500 MPa |
| Thermal Conductivity | 20 - 30 W/m·K |
| Thermal Expansion Coefficient | 7.0 - 8.0 × 10⁻⁶/K |
| Max Operating Temperature | 1500°C (2732°F) |
| Electrical Resistivity | 10¹⁴ - 10¹⁶ Ω·cm |
| Dielectric Strength | 15 - 20 kV/mm |
| Chemical Resistance | Excellent resistance to acids and alkalis |
| Available Types | Flat, Locking, Vented, Belleville, Flanged, Grooved |
| Property | Specification |
|---|---|
| Material Composition | ZrO₂ (Zirconia) |
| Density | 5.8 - 6.1 g/cm³ |
| Hardness (HV) | 1200 - 1350 |
| Flexural Strength | 900 - 1200 MPa |
| Compressive Strength | 2000 - 2400 MPa |
| Thermal Conductivity | 2.0 - 3.0 W/m·K |
| Thermal Expansion Coefficient | 10.0 - 11.0 × 10⁻⁶/K |
| Max Operating Temperature | 2100°C (3812°F) |
| Melting Point | 2700°C (4900°F) |
| Electrical Resistivity | 10¹⁰ - 10¹² Ω·cm |
| Dielectric Strength | 10 - 15 kV/mm |
| Surface Finish | Fine-grained smooth surface for tight seals |
| Available Types | Flat, Locking, Vented, Belleville, Tubular |
| Property | Alumina (Al₂O₃) | Zirconia (ZrO₂) |
|---|---|---|
| Primary Advantage | Electrical insulation, wear resistance | Heat resistance, toughness |
| Mechanical Strength | Good | Excellent |
| Wear Resistance | Excellent | Very Good |
| Chemical Stability | Excellent | Excellent |
| Electrical Insulation | Ideal | Good |
| Heat Resistance | High (up to 1500°C) | Exceptional (up to 2100°C) |
| Surface Finish | Standard | Fine-grained smooth surface |
| Typical Applications | Electrical insulation, corrosive environments | High-temperature applications, precision sealing |
Non-conductive for electrical insulation
Rust-resistant in all environments
Exceptional heat resistance
Superior wear resistance
Chemical stability against acids and alkalis
Maintain integrity under high pressure
Long-lasting with no deterioration over time
Electrical and electronic insulation
High-temperature industrial equipment
Chemical processing plants
Aerospace and aviation components
Semiconductor manufacturing
Medical and laboratory equipment
Automotive and marine applications
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