Dayoo Advanced Ceramic Co.,Ltd
| Delivery Time | Negotiable |
| Payment Terms | Negotiable |
| Corrosion Resistance | Excellent |
| Temperature Resistance | Up to 1600°C |
| Color | White |
| Shape | Round |
| Product Type | Nozzles |
| Electrical Insulation | High |
| Material | Ceramic |
| Size | Various sizes available |
| Surface Finish | Smooth |
| Wear Resistance | Excellent |
| Hardness | 9 on Mohs scale |
| Thermal Shock Resistance | Excellent |
| Precision Tolerance | High |
| Application | Industrial and manufacturing processes |
| Chemical Resistance | Highly resistant to acids, alkalis, and solvents |
| Place of Origin | Made In China |
| Brand Name | Dayoo |
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Product Specification
| Delivery Time | Negotiable | Payment Terms | Negotiable |
| Corrosion Resistance | Excellent | Temperature Resistance | Up to 1600°C |
| Color | White | Shape | Round |
| Product Type | Nozzles | Electrical Insulation | High |
| Material | Ceramic | Size | Various sizes available |
| Surface Finish | Smooth | Wear Resistance | Excellent |
| Hardness | 9 on Mohs scale | Thermal Shock Resistance | Excellent |
| Precision Tolerance | High | Application | Industrial and manufacturing processes |
| Chemical Resistance | Highly resistant to acids, alkalis, and solvents | Place of Origin | Made In China |
| Brand Name | Dayoo | ||
| High Light | Diesel Engines Silicon Nitride Ceramics ，Turbocharger Rotors Silicon Nitride Ceramics | ||
High-Temperature Ceramic Nozzles With Rapid Temperature Adaptation For Extreme Operating Conditions
Manufactured from 99.5% high-purity silicon nitride (Si₃N₄) through specialized formulation design and gas pressure sintering technology, this product demonstrates exceptional thermal shock resistance. Capable of withstanding sudden temperature variations up to 1200°C without cracking, making it ideal for extreme operating conditions with rapid temperature fluctuations.
Aircraft engines: Fuel injection systems for combustion chambers
Steel metallurgy: Secondary cooling nozzles for continuous casters
Glass manufacturing: Annealing lehr jet systems for float glass
Chemical equipment: High-temperature reactor injection devices
Heat treatment furnaces: Rapid quenching cooling systems
✓ Exceptional ΔT resistance: Withstands 1200°C thermal shock
✓ Rapid temperature adaptation: Permits 20°C/s heating/cooling rates
✓ High-temperature stability: Maintains structural integrity at 1600°C
✓ Thermal fatigue resistance: >95% strength retention after 1000 cycles
✓ Quenching-proof: 100% pass rate in water quenching tests
| Parameter | Specification |
|---|---|
| Material Purity | Si₃N₄≥99.5% |
| Thermal Shock ΔT | 1200°C (water quenching test) |
| Flexural Strength | ≥650MPa (post-shock) |
| CTE | 3.1×10⁻⁶/°C |
| Thermal Conductivity | 25W/(m·K) |
| Maximum Service Temp | 1600°C |
| Thermal Cycles | >1000 (ΔT=1000°C) |
| Post-Shock Strength Retention | >95% |
Material optimization: Unique grain boundary phase design
Forming process: 200MPa isostatic pressing
Gas pressure sintering: 1850°C nitrogen atmosphere
Microstructure control: β-Si₃N₄ whisker toughening
Performance testing: Water quenching thermal shock test (1200°C⇄RT)
⚠️ Installation: Maintain 0.5-1mm thermal expansion gap
⚠️ Temperature control: Permits rapid heating (≤20°C/s)
⚠️ Cooling restrictions: Avoid localized forced cooling
⚠️ Maintenance: Inspect for thermal shock damage every 500 hours
Technical support: Free thermal stress analysis
Custom solutions: Special thermal shock condition designs
Emergency response: 12-hour technical support
Q: Maximum allowable temperature change rate?
A: Permits up to 20°C/s, recommended ≤15°C/s.
Q: Performance in oxidizing atmospheres?
A: Stable below 1200°C, recommended <1000°C for prolonged use.
Q: How to identify thermal shock damage?
A: Replace when surface cracks >0.1mm or flow variation >10% occurs.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. Deyu Precision Ceramics Technology Co., Ltd. has many years of e... We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. Deyu Precision Ceramics Technology Co., Ltd. has many years of e...
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