High Strength Silicon Nitride Ceramic Plunger with Wear and Corrosion Resistance for Industrial Applications

The Silicon Nitride Ceramic Plunger is a cylindrical industrial ceramic component manufactured from high-performance silicon nitride material. This precision-engineered product offers superior performance compared to traditional metals and alumina ceramics in extreme operating conditions. Manufactured from high-purity silicon nitride powder using advanced forming and sintering processes, it features a dense microstructure with precision-ground and polished surfaces for exceptional dimensional accuracy and smoothness.

• High-Temperature Industrial Furnaces & Equipment: Kiln rollers, support rods, and fixtures in semiconductor sintering, metallurgy, and glass manufacturing
• Chemical & Pump/Valve Systems: Core components in metering pumps and plunger pumps for corrosive, high-purity, or particle-laden media
• Machinery & Automotive Industry: Balls and rollers for high-performance bearings in high-speed, high-temperature, or corrosive environments
• Electronics & Semiconductor Sector: Insulating jigs, carriers, and heater plate components in chip manufacturing
• Research & Defense: Special structures and wear-resistant parts requiring lightweight and high rigidity

• Exceptional Mechanical Strength & Hardness: Superior wear resistance and longer service life than most metals and alloys
• Outstanding Thermal Shock Resistance: Withstands rapid temperature changes without cracking
• Superior Corrosion Resistance: Resistant to most acids and alkalis for harsh environments
• Low Density & Self-Lubricating Properties: Lightweight with reduced friction coefficient
• Excellent Electrical Insulation: Maintains insulation properties even at elevated temperatures

The production follows a precise multi-step process: Raw Material Preparation → Isostatic Pressing → CNC Machining (Green State) → Gas Pressure Sintering → Precision Grinding/Polishing → Non-Destructive Testing → Cleaning & Packaging. Gas Pressure Sintering is the critical step for achieving high-density, high-performance products.

• Installation: Ensure clean mating components and use specialized tools for smooth pressing
• Mating Materials: Pair with high hardness materials (cemented carbide, specialty steels) for optimal service life
• Avoid Stress Concentration: Designs should prevent sharp corners and uneven stress loads
• Cleaning: Use ultrasonic cleaners or neutral solvents; avoid highly corrosive chemicals

We provide comprehensive technical support including product consultation, custom manufacturing, and application solutions. All products undergo strict quality inspection and include a certificate of compliance.