Product Details
Place of Origin: Made In China
Payment & Shipping Terms
Free Silicon Content: |
≤10% |
Product Colour: |
Black |
Dielectric Strength: |
10 KV/mm |
Shape: |
Customers' Request |
Thermal Conductivity: |
120 W/mK |
Chemical Resistance: |
High |
Processing Service: |
Custom Processing |
Usage: |
Burners |
Compressive Strength: |
2000 MPa |
Density: |
3.21 G/cm3 |
Feature: |
High Temperature Resistance |
Working Temperature: |
1400℃ |
Material: |
Silicon Carbide |
Custom Service: |
Acceptable |
Wear Resistance: |
High |
Free Silicon Content: |
≤10% |
Product Colour: |
Black |
Dielectric Strength: |
10 KV/mm |
Shape: |
Customers' Request |
Thermal Conductivity: |
120 W/mK |
Chemical Resistance: |
High |
Processing Service: |
Custom Processing |
Usage: |
Burners |
Compressive Strength: |
2000 MPa |
Density: |
3.21 G/cm3 |
Feature: |
High Temperature Resistance |
Working Temperature: |
1400℃ |
Material: |
Silicon Carbide |
Custom Service: |
Acceptable |
Wear Resistance: |
High |
This product is a high-performance industrial ceramic ring made of Reaction Bonded Silicon Carbide (SiSiC). It features a deep black appearance with a precision-ground surface finish of Ra ≤ 0.4μm. The unique double-step design combines concentric rings with multi-level planes, ensuring effective sealing surface contact while providing stable axial positioning capability. This product fully utilizes the high hardness, high-temperature resistance, and corrosion resistance of silicon carbide material, specifically designed for mechanical seals, bearing sleeves, and wear-resistant components in extreme working conditions.
Exceptional Wear Life: Hardness reaches Hv2000-2500, with wear resistance 7 times higher than ordinary alumina ceramics.
Excellent High-Temperature Resistance: Maintains structural integrity at 1380°C (up to 1600°C in inert atmosphere), with outstanding thermal shock resistance.
Stable Corrosion Resistance: Excellent resistance to most acid and alkali media (except hydrofluoric acid and hot concentrated alkalis).
Low Density & High Stiffness: Density only 3.02–3.15 g/cm³, 60% lighter than metal components, while maintaining high mechanical strength (flexural strength ≥400MPa).
Chemical Machinery: Mechanical seal rings for reactors, shaft sleeves for pumps.
High-Temperature Equipment: Guide rails for sintering furnaces, roller bearing sleeves.
Energy Sector: Sealing components for nuclear power cooling pumps.
Precision Machinery: Isolation rings for high-speed bearings.
| Parameter Category | Technical Indicator |
|---|---|
| Material | Reaction Bonded Silicon Carbide |
| Color | Black |
| Density | 3.02–3.15 g/cm³ |
| Hardness | Hv 2000-2500 |
| Flexural Strength | 400-500 MPa |
| Maximum Service Temperature | 1380°C (air) |
| Thermal Conductivity | 110 W/(m·K) |
| Surface Roughness | Ra ≤ 0.4μm |
Raw material formulation (silicon carbide powder + carbon black) → Isostatic pressing → CNC machining of step structure → Reaction sintering (1600°C) → Non-destructive testing → Precision surface grinding → Laser dimensional verification → Ultrasonic cleaning → Vacuum packaging.
Installation Preparation: Ensure the installation contact surface is clean and free of oil stains, and align the step groove with the base positioning pin.
Fastening Requirements: Use progressive diagonal tightening sequence for bolts, with torque not exceeding 20N·m to avoid local stress concentration.
Thermal Gap Reservation: Maintain 0.15–0.25mm thermal expansion gap with metal contact surfaces.
Medium Compatibility: Avoid use in hydrofluoric acid and molten alkali metal environments.
Initial Startup: Recommended stepwise heating at ≤200°C/h for thermal adaptation treatment.
12-month product quality guarantee
Supports customization from drawings (minimum order quantity: 20 pieces)
Provides material test reports and installation guide manuals
Establishes exclusive product usage files for customers
Q: What are the outstanding advantages compared to silicon nitride ceramic rings?
A: Thermal conductivity is 3 times higher (110W/m·K), maximum service temperature is 400°C higher, making it more suitable for strong heat conduction scenarios.
Q: Do you support customization of non-standard step dimensions?
A: Yes, we do. Please provide axial cross-sectional drawings and precision requirements. Standard customization cycle is 25 working days.
Q: What is the service life under strong acid conditions?
A: Continuous service life ≥8000 hours in pH=2-10 working conditions. Annual flatness inspection of the sealing surface is recommended.
Q: Do you offer discounted reorders for broken parts?
A: We provide fracture analysis reports and offer 5% discount on same-specification orders for replacement parts.
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