Superior Wear Resistance and Fuel Efficiency with Automotive-Grade Silicon Nitride Ceramics
Specially developed for the automotive industry, this product line is manufactured using 99.6% high-purity silicon nitride (Si₃N₄) through precision gas pressure sintering. Featuring lightweight, high-temperature resistance, and superior wear resistance to significantly enhance performance and lifespan of critical automotive components.
Primary Applications
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Powertrain: Turbocharger rotors
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Transmission: Bearing balls and cages
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Braking system: High-performance brake pads
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NEV: Motor insulation components
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Exhaust system: Hot-end seals
Automotive Advantages
✓ Lightweight: Density 3.2g/cm³, 40-60% weight reduction
✓ Extreme wear resistance: 1/10 wear rate of steel
✓ High-temperature resistance: Withstands 1200°C instant temperature
✓ Fuel efficiency: Reduces friction loss by 15-20%
✓ Extended lifespan: 3-5x longer service life
Automotive-Grade Specifications
| Parameter | Specification | Test Standard |
| Material Purity | Si₃N₄≥99.6% | ISO 18756 |
| Density | 3.20±0.05g/cm³ | ISO 18754 |
| Flexural Strength | ≥650MPa | ISO 14704 |
| Fracture Toughness | ≥6.5MPa·m¹/² | ASTM C1421 |
| CTE | 3.3×10⁻⁶/°C | DIN 51045 |
| Max Rotation Speed | 150,000rpm | - |
| Service Life | ≥300,000km | - |
Automotive Manufacturing Process
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Material selection: Automotive-grade powder (metal impurities ≤100ppm)
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Precision forming: 200MPa isostatic pressing + CNC machining
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Atmosphere sintering: 1850°C nitrogen-protected sintering
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Surface treatment: Nano-level polishing (Ra≤0.1μm)
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Full inspection:
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Dynamic balance testing (G2.5 grade)
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Fatigue test (10 million cycles)
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Bench test (simulating real conditions)
Usage Guidelines
⚠️ Installation: Use specialized tools
⚠️ Temperature limit: Instantaneous ≤1200°C/Continuous ≤800°C
⚠️ Lubrication: Must use specified lubricants
⚠️ Maintenance: Inspect every 50,000km
Automotive Services
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Warranty: 5 years or 300,000km
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Technical support: Free failure analysis
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OEM solutions: Custom development for automakers
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Testing service: Provides bench test reports
FAQ
Q: Advantages vs traditional metal parts?
A: Key benefits include:
① >40% weight reduction
② 10x better wear resistance
③ 3-5% improved fuel efficiency
Q: Cold climate performance?
A: Passes -40°C low-temperature tests without performance degradation.
Q: Crash safety?
A: Complies with ECE R94 standards, breaks without sharp edges.
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Superior Wear Resistance and Fuel Efficiency with Automotive-Grade Silicon Nitride Ceramics Images
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