High-Performance Ceramic Nozzles Silicon Nitride Material With HV10 Ge 1500 For Wear Resistance

High-Performance Ceramic Nozzles Silicon Nitride Material With HV10 Ge 1500 For Wear Resistance

Silicon nitride (Si₃N₄) nozzles are manufactured using high-purity silicon nitride powder (Si₃N₄ ≥ 99%) through gas pressure sintering (GPS) technology. These nozzles exhibit exceptional high-temperature resistance, corrosion resistance, and thermal shock resistance, making them ideal for extreme working conditions in demanding industrial applications.

Primary Applications

• Metal Processing: High-temperature molten metal atomization nozzles

• Chemical Industry: Corrosive fluid injection systems

• Energy Sector: Fuel injectors for gas turbines

• Environmental Equipment: Flue gas desulfurization spray guns

• 3D Printing: Metal powder atomization nozzles

Key Advantages

✅ Extreme Temperature Resistance: Continuous use at 1400°C (short-term 1600°C)
✅ Superior Thermal Shock Resistance: Withstands rapid temperature changes up to 1000°C
✅ Excellent Corrosion Resistance: Resistant to acids and alkalis (except hydrofluoric acid)
✅ Ultra-High Hardness: HV10 ≥ 1500, outstanding wear resistance
✅ Extended Service Life: 5-8 times longer lifespan than metal nozzles

Technical Specifications

Manufacturing Process

1. Material Preparation: High-purity Si₃N₄ powder (D50 ≤ 0.5 μm) mixed with sintering aids

2. Forming Process: Isostatic pressing (200 MPa)

3. Gas Pressure Sintering (GPS): Sintered at 1800°C in nitrogen atmosphere

4. Precision Machining: CNC grinding for high-precision dimensions

5. Quality Inspection: X-ray flaw detection, flow rate testing, and strength verification

Usage Guidelines

⚠️ Installation: Use ceramic-specific fixtures to avoid mechanical stress concentration
⚠️ Temperature Control: Heating rate ≤5°C/min (above 800°C)
⚠️ Media Restrictions: Avoid hydrofluoric acid and molten alkali metals
⚠️ Maintenance: Regularly inspect nozzle orifice for wear

After-Sales Service

• Technical Support: Free flow optimization solutions

• Customization: Non-standard hole sizes and shapes available

• Emergency Response: 24-hour technical consultation

FAQ

Q: What are the advantages of Si₃N₄ nozzles over SiC nozzles?
A: Better thermal shock resistance, superior alkali corrosion resistance, and suitability for harsher conditions.

Q: What is the maximum operating pressure?
A: Standard nozzles withstand 20 MPa, while specially designed versions can handle 50 MPa.

Q: When should a nozzle be replaced?
A: Replace if flow rate deviation exceeds ±15% or visible wear is detected.

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.