Product Details
Place of Origin: Made In China
Brand Name: Dayoo
Payment & Shipping Terms
Minimum Order Quantity: Negotiable
Price: Negotiable
Delivery Time: Negotiable
Payment Terms: Negotiable
Chemical Resistance: |
Excellent |
Bending Strength: |
>750 MPa |
Surface Finish: |
Smooth |
Type: |
Ceramic Balls |
High Purity: |
99.9% |
Melting Point: |
1900°C |
Processing Service: |
Cutting, Punching, Moulding |
Thermal Shock Resistance: |
Excellent |
Lead Time: |
30days |
Insulation Resistance: |
1012-1014 Ω.cm |
Breakdown Voltage: |
20-25 KV/mm |
Wire Length: |
300mm |
Color: |
Gray |
Package: |
Customized |
Heating Wire: |
NiCr80/20 |
Chemical Resistance: |
Excellent |
Bending Strength: |
>750 MPa |
Surface Finish: |
Smooth |
Type: |
Ceramic Balls |
High Purity: |
99.9% |
Melting Point: |
1900°C |
Processing Service: |
Cutting, Punching, Moulding |
Thermal Shock Resistance: |
Excellent |
Lead Time: |
30days |
Insulation Resistance: |
1012-1014 Ω.cm |
Breakdown Voltage: |
20-25 KV/mm |
Wire Length: |
300mm |
Color: |
Gray |
Package: |
Customized |
Heating Wire: |
NiCr80/20 |
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.
Powertrain: Turbocharger rotors
Transmission: Bearing balls and cages
Braking system: High-performance brake pads
NEV: Motor insulation components
Exhaust system: Hot-end seals
✓ 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
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 | - |
Material selection: Automotive-grade powder (metal impurities ≤100ppm)
Precision forming: 200MPa isostatic pressing + CNC machining
Atmosphere sintering: 1850°C nitrogen-protected sintering
Surface treatment: Nano-level polishing (Ra≤0.1μm)
Full inspection:
Dynamic balance testing (G2.5 grade)
Fatigue test (10 million cycles)
Bench test (simulating real conditions)
⚠️ Installation: Use specialized tools
⚠️ Temperature limit: Instantaneous ≤1200°C/Continuous ≤800°C
⚠️ Lubrication: Must use specified lubricants
⚠️ Maintenance: Inspect every 50,000km
Warranty: 5 years or 300,000km
Technical support: Free failure analysis
OEM solutions: Custom development for automakers
Testing service: Provides bench test reports
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.