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High-Temperature Ceramic Nozzles With Rapid Temperature Adaptation For Extreme Operating Conditions

Categories Ceramic Nozzles
Place of Origin: Made In China
Brand Name: Dayoo
MOQ: Negotiable
Price: Negotiable
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
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High-Temperature Ceramic Nozzles With Rapid Temperature Adaptation For Extreme Operating Conditions

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.

Primary Applications

  • 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

Thermal Shock Advantages

✓ 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

Technical Specifications

ParameterSpecification
Material PuritySi₃N₄≥99.5%
Thermal Shock ΔT1200°C (water quenching test)
Flexural Strength≥650MPa (post-shock)
CTE3.1×10⁻⁶/°C
Thermal Conductivity25W/(m·K)
Maximum Service Temp1600°C
Thermal Cycles>1000 (ΔT=1000°C)
Post-Shock Strength Retention>95%

Specialized Manufacturing

  1. Material optimization: Unique grain boundary phase design

  2. Forming process: 200MPa isostatic pressing

  3. Gas pressure sintering: 1850°C nitrogen atmosphere

  4. Microstructure control: β-Si₃N₄ whisker toughening

  5. Performance testing: Water quenching thermal shock test (1200°C⇄RT)

Usage Guidelines

⚠️ 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

Service Commitment

  • Technical support: Free thermal stress analysis

  • Custom solutions: Special thermal shock condition designs

  • Emergency response: 12-hour technical support

FAQ

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.



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