Shengda Ceramic can provide all kinds of Engineering Ceramic Alumina Ceramic Insulator Alumina Products. Also can supply the mirror surface treatment to meet the sealing requirements of bearings, etc. Any dimension requirement, please contact us.
Product Introduction
Engineering Ceramic Alumina Ceramic Insulator Alumina Products
Alumina ceramic (Al₂O₃) is a premium engineering ceramic material renowned for its exceptional electrical insulation, thermal stability, and mechanical strength. As a leading manufacturer of alumina ceramic insulators and industrial alumina products, we specialize in delivering customized solutions for high-temperature, high-voltage, and corrosive environments.
Why Choose Our Alumina Ceramic Components?
1.Superior Electrical Insulation
1)Dielectric strength up to 15 kV/mm, ideal for high-voltage insulators and power transmission systems.
2)Volume resistivity >10¹⁴ Ω·cm ensures zero current leakage in critical applications.
2.Extreme Temperature Resistance
1)Operates reliably from -200°C to 1600°C, perfect for high-temperature ceramic components in furnaces, aerospace, and semiconductor equipment.
3.Customized Engineering Solutions
1)Tailored dimensions (tolerance ±0.1mm) and shapes for precision alumina ceramic parts.
2)Multi-layer metallization options (Mo-Mn, W, Au) for hermetic sealing.
4.Corrosion & Wear Resistance
1)9 Mohs hardness rating outperforms steel, with <0.02g/cm² annual wear rate in abrasive environments.
Key Applications of Alumina Ceramics
1)Electronics & Energy:
✅ Vacuum interrupter tubes | ✅ Thyristor insulation housings | ✅ LED substrate carriers
2)Industrial Machinery:
✅ Wear-resistant liners | ✅ Thermocouple protection tubes | ✅ Pump seals
3)Medical & Aerospace:
✅ Biocompatible implant coatings | ✅ Satellite communication insulators
Main Features:
1. High hardness
2. High heat resistance
3. Good wear resistance
4. High electrical resistivity
5. High corrosion resistance
Technical Parameters
Properties | Units | Cordierite Ceramic | Mullite Ceramic | 95%Alumina Ceramic | 99%Alumina Ceramic | 99.5%Alumina Ceramic | 99.7%Alumina Ceramic | Silicon Nitride | Zirconia Ceramic |
Colour | Yellow | White | White | Light yellow | Light yellow | Light yellow | Black | White | |
Density | g/cm3 | 1.9 | 2.6 | 3.6 | 3.8 | 3.8 | 3.9 | 3.2 | 6 |
Flexural Strength | Mpa | 30 | 120 | 300 | 350 | 375 | 375 | 800 | 1100 |
Compressive Strength | MPa | 350 | 500 | 2500 | 2800 | 2800 | 2554 | 2600 | 3000 |
Modulus of Elasicity(20℃) | Gpa | 40 | 100 | 300 | 350 | 350 | 357 | 290 | 320 |
Max Use Temperature | °C | 1200 | 1300 | 1400 | 1500 | 1500 | 1760 | 1300 | 1050 |
Thermal Condutivity | W(m.K) | 1.3-1.8 | 2~6 | 20 | 30 | 30 | 33-38 | 25 | 3 |
Thermal Expansion Cofficient | 10-6/°C | 2.5-3 | 2.5-3 | 7.5 | 8 | 8.2 | 8.2 | 3 | 10 |
Thermal Shock Resistance | △T℃ | 300 | 150 | 140 | 150 | 200 | 223 | 600 | 250 |
Dielectric Strength | KV/mm | - | - | 15 | 18 | 18 | 23.4 | 14 | 15 |
Dielectric Constant | Er | 8 | 8 | 9 | 9.2 | 9.2 | 9.84 | 9 | 26 |
Production process
1. Grind and crush the raw materials to be slurry or powder
2. se-different method to making the slurry or powder into semi-finished products
3. Put the semi-finished products into the kiln for dewaxing and sintering;
4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.
5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery
Certifications
Our customers
Packaging and shipping
Transport
FAQ:
Q: Do you have the products in stock?
A: Some standard produce have in stock, such as ceramic band heater insulator; bobbin heater insulator and ceramic connector. But it needs to check according to your requirement.
Q: How do you pack the goods?
A: Our standard packaging is carton, we can customize it as per your requirement as well.
Q: How many days do you finish the sample?
A: Usually 15 business days (Including 8days for making furnaces and 7days for producing samples)
Request A Quote Today
Whether is a product enquiry or technical help, please send messager here, our team will respond within 8 hours.
Subject : Engineering Ceramic Alumina Ceramic Insulator Alumina Products
If you have any questions or need help, feel free to contact with our team.
Phone
+86 18068252612
Location
Qianluo Village, Dingshu Town, Yixing City, Jiangsu Province, China
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