Delivery Time | Negotiable |
Payment Terms | Negotiable |
Flexural Strength | 350 MPa |
Materials | 92% alumina powder |
Mechanical Strength | High |
Bulk Density | >3.63 |
Electrical Insulation | High |
Material | Alumina Ceramic |
Electrical Resistivity | 10^14 Ohm-cm |
Surface Finish | Polished |
Method | lsostatic presure |
Tensile Strength | 200 MPa |
Type | Alumina Ceramic Parts |
Hardness | 9 Mohs |
Dielectric Strength | 20 kV/mm |
Size | Customized |
Dielectric Loss | 0.0002 |
Place of Origin | Made In China |
Brand Name | Dayoo |
View Detail Information
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Product Specification
Delivery Time | Negotiable | Payment Terms | Negotiable |
Flexural Strength | 350 MPa | Materials | 92% alumina powder |
Mechanical Strength | High | Bulk Density | >3.63 |
Electrical Insulation | High | Material | Alumina Ceramic |
Electrical Resistivity | 10^14 Ohm-cm | Surface Finish | Polished |
Method | lsostatic presure | Tensile Strength | 200 MPa |
Type | Alumina Ceramic Parts | Hardness | 9 Mohs |
Dielectric Strength | 20 kV/mm | Size | Customized |
Dielectric Loss | 0.0002 | Place of Origin | Made In China |
Brand Name | Dayoo | ||
High Light | Dayoo alumina al2o3 chemical resistance ,Dayoo al2o3 alumina based ceramics ,Dayoo chemical resistance alumina based ceramics |
Introduction
Alumina ceramic is an advanced engineering ceramic material primarily composed of high-purity alpha-alumina (Al₂O₃), manufactured using isostatic pressing and high-temperature sintering processes. This material possesses exceptional comprehensive properties, including excellent electrical insulation, extremely high mechanical strength, outstanding wear resistance, and corrosion resistance, making it an irreplaceable key material in fields such as electronic equipment, precision machinery, and fluid control systems.
Applications
Electronic Equipment: Integrated circuit insulating supports, high-voltage switch insulation components, vacuum feedthrough devices, semiconductor manufacturing equipment parts
Precision Machinery: High-speed spindle bearings, precision guides, mechanical seal rings, measuring instrument load-bearing components
Fluid Control: Chemical pump mechanical seals, valve bushings, pipeline connectors, corrosive medium transportation parts
Advantages
Excellent Electrical Insulation: Volume resistivity >10¹⁴ Ω·cm, dielectric strength 15-25 kV/mm
Outstanding Mechanical Properties: Compressive strength 2200-2800 MPa, Vickers hardness 1600-1800 HV
Exceptional Wear Resistance: Wear rate only 1/10-1/5 that of metal materials
Strong Corrosion Resistance: Resists erosion from most acids, alkalis, and organic solvents
Good Thermal Stability: Low coefficient of thermal expansion, can be used long-term at 1400℃
Specification Parameters Table
Performance Indicator | Unit | Value Range | Test Standard |
---|---|---|---|
Alumina Content | % | 95-99.8 | ISO 14720 |
Bulk Density | g/cm³ | 3.6-3.9 | ASTM C20 |
Flexural Strength | MPa | 300-380 | ISO 14704 |
Compressive Strength | MPa | 2200-2800 | ASTM C773 |
Vickers Hardness | HV | 1600-1800 | ISO 6507 |
Dielectric Strength | kV/mm | 15-25 | IEC 60243 |
Thermal Expansion Coefficient | ×10⁻⁶/℃ | 7.2-8.2 | ASTM E228 |
Manufacturing Process
Raw material selection → Formula optimization → Spray granulation → Isostatic pressing → High-temperature sintering → Precision machining → Non-destructive testing → Performance testing → Strict quality inspection → Packaging and shipment
Usage Instructions
Clean contact surfaces before installation to ensure no oil stains or impurities
Use special installation tools to avoid knocking and impact
Reserve appropriate thermal expansion clearance when matching with metal parts
Regularly check usage status, recommend comprehensive inspection every six months
Avoid rapid cooling and heating, temperature change rate should be controlled within 5℃/minute
After-Sales Service
18-month product quality guarantee period
24-hour professional technical consultation response
Free product application technical guidance
Establish customer usage files, regular follow-ups
Provide emergency spare parts supply service
FAQ
Q: What grade of machining precision can alumina ceramic achieve?
A: Conventional machining precision can reach ±0.01mm, precision machining can reach ±0.002mm
Q: Can secondary processing be performed?
A: Yes, but diamond tools are required for processing
Q: What is the service life of the product?
A: Under normal usage conditions, service life can reach 5-10 years
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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