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

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.

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 experience in producing special precision ceramics, and has the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. At present, the company has production and processing equipment such as dry press, isostatic press, experimental furnace, flat kiln, machining center, surface grinder, universal internal and external grinder, centerless grinder and laser cutting machine, as well as complete high-precision testing equipment such as high-precision projector, three-dimensional tester, metallographic microscope, hardness tester and densitometer.

With advanced production technology and complete production facilities, the company is one of the few domestic enterprises that can produce special precision ceramic structural parts and functional parts with machining accuracy less than 2 microns, and has strong core competitiveness in the same industry in China.

Advantages of the company: 1. National new technology enterprises; 2. The company has a municipal R&D center; 3. Cooperation with domestic key universities and research institutes; 4. Design, molding, sintering and precision processing; 5. The products cover alumina, zirconia, silicon nitride, silicon carbide and other precision ceramics; 6. Precision plus technology.

The company has always been standing in the position of customers to solve problems, focusing on the principle of quality and delivery time, adhering to the business philosophy of "integrity, innovation and reassurance", and sincerely looking forward to cooperating with you.