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| Quality Control | 100% Inspection | 
| Wattage Density | 2~25W/cm2 | 
| Tensile Strength | 700 MPa | 
| Working Temperature | ≤1200℃ | 
| Shape | Round | 
| Chemical Inertness | High | 
| Drawing Format | 2D/(PDF/CAD)3D(IGES/STEP) | 
| Purity | 96%,99% | 
| Fracture Toughness | 6-7(MPa•m1/2) | 
| Breakdown Voltage | 20-25 KV/mm | 
| Size | according to the drawing | 
| Dielectric Strength | 15 kV/mm | 
| Type | bearing ceramic ball | 
| Water Absorption | 0 | 
| Packaging Details | Carton | 
| Place of Origin | Made In China,Zhejiang,Jinhua | 
| Brand Name | Dayoo | 
View Detail Information
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Product Specification
| Produce Capacity | 100000p/month | Quality Control | 100% Inspection | 
| Wattage Density | 2~25W/cm2 | Tensile Strength | 700 MPa | 
| Working Temperature | ≤1200℃ | Shape | Round | 
| Chemical Inertness | High | Drawing Format | 2D/(PDF/CAD)3D(IGES/STEP) | 
| Purity | 96%,99% | Fracture Toughness | 6-7(MPa•m1/2) | 
| Breakdown Voltage | 20-25 KV/mm | Size | according to the drawing | 
| Dielectric Strength | 15 kV/mm | Type | bearing ceramic ball | 
| Water Absorption | 0 | Packaging Details | Carton | 
| Place of Origin | Made In China,Zhejiang,Jinhua | Brand Name | Dayoo | 
Product Introduction
 This product is a dark gray annular ceramic component manufactured from high-purity silicon nitride material, innovatively designed with a flanged structure that combines excellent mechanical strength with precise dimensional control. Through advanced sintering technology and precision machining, the product achieves mirror-level surface smoothness, demonstrating the outstanding comprehensive properties of silicon nitride material. This ceramic ring not only inherits the inherent high strength and high toughness characteristics of silicon nitride but also achieves multi-functional integration through unique structural design, making it an ideal key component solution for high-speed and high-pressure operating conditions.
Core Advantages
Exceptional Mechanical Properties: Flexural strength ≥800MPa, fracture toughness ≥6.5MPa·m¹/²
Excellent Wear Resistance: Hardness up to HRA 90-93, wear rate lower than 10⁻⁷mm³/N·m
Outstanding Temperature Resistance: Maintains stable performance at high temperatures up to 1200°C
Lightweight Design: Density only 3.2g/cm³, approximately 60% lighter than steel
Superior Corrosion Resistance: Resistant to acids, alkalis, and oxidation, suitable for harsh environments
Specifications Table
| Parameter | Technical Specification | 
|---|---|
| Material | High-Purity Silicon Nitride | 
| Structure | Annular with Flange | 
| Color | Dark Gray | 
| Density | 3.2-3.3g/cm³ | 
| Hardness | HRA 90-93 | 
| Flexural Strength | ≥800MPa | 
| Fracture Toughness | ≥6.5MPa·m¹/² | 
| Maximum Service Temperature | 1200°C | 
| Thermal Expansion Coefficient | 3.2×10⁻⁶/°C | 
Manufacturing Process
 Raw material preparation → Spray granulation → Bidirectional pressing → Isostatic pressing → Gas pressure sintering → Precision machining → Surface grinding → OD/ID grinding → Non-destructive testing → Dimensional inspection → Product packaging
Usage Instructions
Ensure mating surfaces are clean and flat during installation to avoid impurity intrusion
Use specialized tools for assembly to ensure even force distribution
Maintain proper lubrication and cooling in working environments
Regularly inspect surface condition and replace abnormal components promptly
Avoid severe impact with hard materials
After-Sales Service
 We provide 24-month extended quality assurance with professional technical team support for full-process application guidance. Customer files are established for regular quality tracking to ensure product performance. Emergency quality issues receive response within 12 hours.
FAQ
 Q: What is the main function of the flanged design?
 A: Enhances structural strength, provides axial positioning function, and facilitates installation and fixation.
Q: Can it be used for extended periods in strong acid environments?
 A: Silicon nitride has excellent corrosion resistance and can withstand most acidic media.
Q: What are the advantages compared to silicon carbide ceramics?
 A: Offers higher fracture toughness and better thermal shock resistance, making it more suitable for impact load applications.

Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter 
Total Annual:
>1000000
Employee Number:
>100 
Ecer Certification:
Verified Supplier 
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 e... 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 e...
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