Alumina Ceramic Insulation Seals: Ideal Choice For High-Performance Industrial Applications
Alumina Ceramic Insulation Seals: Ideal Choice for High-Performance Industrial Applications
Introduction
Alumina ceramic insulation seals are specialized ceramic components manufactured from high-purity alumina (Al₂O₃) material through precision molding and high-temperature sintering processes. This product combines excellent electrical insulation properties with reliable airtightness, maintaining stable performance in high-temperature, high-pressure, and corrosive environments, making it an indispensable key component in high-end industrial equipment.
Applications
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Electronics and Electrical: Vacuum relay seals, high-voltage switch insulators, semiconductor equipment sealing rings
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Energy and Power: Fuel cell sealing gaskets, solar equipment insulation components, nuclear power equipment sealing assemblies
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Aerospace: Avionics sealing, spacecraft insulation components, propulsion system seals
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Research Equipment: Vacuum chamber sealing flanges, experimental equipment insulation parts, analytical instrument sealing assemblies
Advantages
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Excellent Insulation Performance: Dielectric strength ≥20kV/mm, volume resistivity >10¹⁵Ω·cm
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Superior Sealing Performance: Leak rate <1×10⁻¹⁰Pa·m³/s
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High Temperature Resistance: Long-term service temperature up to 1600℃
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Corrosion Resistance: Resistant to acid and alkali corrosion, excellent chemical stability
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High Mechanical Strength: Compressive strength ≥2800MPa, flexural strength ≥380MPa
Specification Parameters Table
| Performance Indicator | Unit | Parameter Value | Test Standard |
|---|---|---|---|
| Alumina Content | % | 99.8 | ISO 14720 |
| Bulk Density | g/cm³ | 3.95 | ASTM C20 |
| Dielectric Strength | kV/mm | 22 | IEC 60243 |
| Volume Resistivity | Ω·cm | 2×10¹⁵ | IEC 62631 |
| Thermal Expansion Coefficient | ×10⁻⁶/℃ | 7.8 | ASTM E228 |
| Sealing Performance | Pa·m³/s | <1×10⁻¹⁰ | ISO 21360 |
Manufacturing Process
Raw material selection → Formula optimization → Spray granulation → Isostatic pressing → High-temperature sintering → Precision machining → Metallization treatment → Brazing processing → Non-destructive testing → Performance testing
Usage Instructions
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Clean sealing surfaces before installation to ensure no impurities
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Use special installation tools to avoid damaging sealing surfaces
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Tighten evenly according to specified torque requirements
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Regularly check sealing status, recommend quarterly inspections
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Operating temperature range: -60℃ to 1600℃
After-Sales Service
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24-month product quality guarantee
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24/7 technical support from professional team
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Free installation guidance and technical training
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Establish customer usage files, regular maintenance reminders
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48-hour response for emergency orders
FAQ
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Q: What is the vacuum sealing performance of the product?
A: Excellent vacuum sealing performance, leak rate can reach <1×10⁻¹⁰Pa·m³/s -
Q: Do you support metallization treatment?
A: Support molybdenum-manganese method metallization treatment, enabling hermetic sealing with metals -
Q: What is the maximum operating temperature?
A: Long-term service temperature 1600℃, short-term can reach 1800℃
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
