ZrO2 Sleeve is high-performance structural ceramic components made from high-purity zirconia (ZrO₂) as the main raw material, through isostatic pressing, high-temperature sintering, and precision machining. This product is renowned as "ceramic steel," exhibiting superior comprehensive mechanical properties among all engineering ceramics, making it an ideal replacement for traditional metal sleeves.
High Strength Zirconia Sleeve
Zirconia ceramic sleeve is high-performance ceramic component widely used in the electronics, communications, and aerospace industries, playing a crucial role, especially in fiber optic connectors, high-temperature components, and precision instruments. Their core advantages lie in their combination of high strength, high hardness, excellent high-temperature resistance, and superior corrosion resistance. These characteristics enable them to maintain stable and reliable performance in harsh environments, meeting the high-precision and high-reliability industrial demands.
Core Material Characteristics
1.Exceptional Mechanical Properties
(1)Ultra-high Hardness: Vickers hardness reaches 1200-1450 HV, Mohs hardness 8.5 (second only to diamond), wear resistance is 15 times that of alumina ceramics.
(2)High Strength: Bending strength 800-1000 MPa, compressive strength 2000-2500 MPa, capable of withstanding high pressure and high load conditions.
(3)Excellent Toughness: Fracture toughness 6-9 MPa·m¹/², the highest among technical ceramics, effectively preventing brittle fracture.
2.Superior Environmental Resistance
(1)Corrosion Resistance: Exhibits excellent chemical stability against acids, alkalis, and most chemical solvents.
(2)High Temperature Resistance: Maximum operating temperature reaches 850-1000°C, thermal shock stability ΔT 280-350°C.
(3)Low Thermal Conductivity: Thermal conductivity only 2.2-3.0. W/m·K, excellent thermal insulation performance
(4)Thermal expansion matching: The coefficient of thermal expansion (10.3×10⁻⁶/℃) is close to that of steel, facilitating assembly with metal parts
3.Precision machining characteristics
(1)Surface finish: Inner holes can be polished to Ra 0.1μm for a mirror effect, with minimal fluid resistanc
(2)Dimensional accuracy: Outer diameter tolerance up to ±0.001mm, inner diameter tolerance ±0.0005mm, length tolerance ±0.015mm
(3)Concentricity control: Minimal concentricity deviation ensures assembly accurac
Typical Applications
1.Optical Communication
(1)Fiber optic connector precision sleeves (compatible with SC/LC/ST interfaces, etc.)
(2)Ensuring precise fiber optic mating, insertion loss <0.2dB
(3)High mating life, maintaining stable connection over time
2.Precision Machinery and Fluid Control
(1)High-pressure pump body bushings, valve assemblies (ball cores, valve seats)
(2)Mechanical seal rings, bearing sleeves
(3)High-precision nozzles, wire drawing dies
3.Chemical and Petroleum Industry
(1)Corrosion-resistant pump bodies, pipe linings
(2)Slurry pump cylinder liners (ZrO₂ Liners)
(3)Reaction vessel agitator bushings
4.Medical Devices
(1)Surgical instrument guide sleeves
(2)Dental implant assemblies
(3)Artificial joint bearing surfaces
5.Other High-End Applications
(1)Semiconductor equipment precision components
(2)Aerospace thermal insulation components
(3)Automotive engine valve seats, cylinder liners
Product Specifications
| Performance indicators | Unit | Typical value |
| Density | g/cm³ | 5.95-6.05 |
| Hardness (HV 0.5) | - | 1300 |
| Flexural strength (room temperature) | MPa | 900 |
| Compressive strength (room temperature) | MPa | 2200 |
| Fracture toughness | MPa·m¹/² | 7 |
| Thermal conductivity (room temperature) | W/m·K | 2.2 |
| Coefficient of thermal expansion (20-1000℃) | 10⁻⁶/℃ | 10.3 |
| Volume resistivity (room temperature) | Ω·cm | 10¹⁴ |
| Dielectric strength | kV/mm | 13 |
Why Choose Our Zirconia Sleeves?
Compared to traditional metal sleeves (stainless steel, copper alloys, hard alloys), zirconia ceramic sleeves offer irreplaceable advantages:
(1)5-10 times longer lservice life: extremely low wear rate significantly reduces equipment downtime for maintenance.
(2)Lubrication-free operation: self-lubricating properties make them suitable for clean environments where lubricants cannot be added.
(3)Zero metal contamination: avoids the risk of metal ion release in the food, pharmaceutical, and electronics industries.
(4)Lightweight design: density is only 3/4 that of steel, reducing the overall weight of equipment.
(5)Insulated and non-magnetic: Suitable for strong magnetic fields or special operating conditions requiring electrical insulation.
FAQ
Q1: What products does your company offer?
We specialize in high-performance ceramics such as alumina and silicon nitride, providing insulators, structural components, wear-resistant parts, and customized solutions.
Q2: Can you customize non-standard parts?
Yes. We support processing based on provided drawings and collaborative technical development, offering a full-process service from design to mass production.
Q3: What about accuracy and delivery time?
Standard tolerance ±0.05mm, precision grade ±0.01mm; samples 7-15 days, bulk orders 20-30 days.
Q4: Main application areas?
Power, electronics, machinery, chemical, and aerospace industries.
Q5: Quality assurance measures?
Full-process quality inspection, providing material reports and performance test data, supporting third-party certification and testing.
Q6: Do you provide technical support?
We provide professional support such as material selection consultation, design optimization, and failure analysis.
Our workshop
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CNC Workshop |
Testing Room |
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Surface grinding Workshop |
Sintering Workshop |
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Circular Grinding Workshop |
Injection molding Machine Workshop |
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