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High-Performance Silicon Nitride Ceramic Nozzles with HV10 Ge 1500 for Wear Resistance

Product Details

Place of Origin: Made In China

Brand Name: Dayoo

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Product Details

Product Description

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Color:	White	Electrical Insulation:	High
Surface Finish:	Smooth	Weight:	Lightweight
Tolerance:	±0.01mm	Precision:	High Precision And Tight Tolerances
Corrosion Resistance:	Excellent	Electrical Resistivity:	10^14 Ohm-cm
Temperature Resistance:	Up To 1600°C	Thermal Conductivity:	Low
Processing Service:	Cutting, Punching, Moulding	Density:	3.2 G/cm3
Smoothness:	Smooth Surface Finish	Hardness:	High
Tooth Form:	Flat Tooth

Color:	White
Electrical Insulation:	High
Surface Finish:	Smooth
Weight:	Lightweight
Tolerance:	±0.01mm
Precision:	High Precision And Tight Tolerances
Corrosion Resistance:	Excellent
Electrical Resistivity:	10^14 Ohm-cm
Temperature Resistance:	Up To 1600°C
Thermal Conductivity:	Low
Processing Service:	Cutting, Punching, Moulding
Density:	3.2 G/cm3
Smoothness:	Smooth Surface Finish
Hardness:	High
Tooth Form:	Flat Tooth

High-Performance Silicon Nitride Ceramic Nozzles 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

Parameter	Specification
Material	High-purity Si₃N₄ (≥99%)
Density	3.2-3.3 g/cm³
Flexural Strength	≥600 MPa
Max. Operating Temp	1400°C (1600°C short-term)
Thermal Expansion Coefficient	3.2×10⁻⁶/°C (20-1000°C)
Hole Diameter Tolerance	±0.02 mm
Surface Roughness	Ra ≤ 0.2 μm

Manufacturing Process

Material Preparation: High-purity Si₃N₄ powder (D50 ≤ 0.5 μm) mixed with sintering aids
Forming Process: Isostatic pressing (200 MPa)
Gas Pressure Sintering (GPS): Sintered at 1800°C in nitrogen atmosphere
Precision Machining: CNC grinding for high-precision dimensions
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.

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