Sign In | Join Free | My frbiz.com
frbiz.com
Products
Search by Category
Home > Wire Mesh >

95% Fine Alumina Ceramic O Ring

Categories Alumina Ceramic Rings
Brand Name: Antaeus
Model Number: AD-B030
Certification: /
Place of Origin: Hunan,China
MOQ: Negotiation
Price: Negotiation
Payment Terms: T/T or Negotiation
Supply Ability: Full Supply
Delivery Time: 15-45 days
Packaging Details: Inner vacuum packaging, outside carton.
Product Name: Metallized Alumina Ceramic Rings / Ceramic Insulators for Battery
Material: Alumina (Aluminum Oxide, Al2O3)
Insulation Resistance: 1000M Ω(1000VDC)
High Light: Alumina Ceramic Rings / Metallized Ceramic Insulators / Electrical Ceramic Components
Thermal Shock Resistance room temperature to 850C: will not burst or leak after five operations
Max. Use Temp.: 1650℃
ROHS Hardness: ≥89
Flexural strength: 550 Mpa(psix10^3)
Compressive Strength: 2600(377) Mpa(psix10^3)
Coefficient of thermal expansion: 8.2 X10^-6/℃
Coefficient of thermal conductivity: 17-30.4 W/m.K
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
Submit Buying Request
  • Product Details
  • Company Profile

95% Fine Alumina Ceramic O Ring

Alumina Seal Ceramic Rings / Industry Insulation Rings


1. Description:

The hardness of high-temperature structural ceramics is much higher than that of metals, and the wear resistance at high temperatures is better than that of metals, and especially better than cemented carbide. Metal and ceramic pair sliding. Under lubricated conditions, not only the wear of ceramics is extremely small, but the wear of metal is also smaller than when metals are paired. Most of the parts of the valve mechanism slide at high speed under high load and insufficient lubrication conditions. It is very suitable for ceramic manufacturing to reduce wear. The main disadvantage of ceramic parts in terms of performance is that they are prone to internal cracks during manufacturing. The internal cracks may propagate under stress and cause brittle failure of parts. In addition, temperature sudden changes caused by changes in engine operating conditions, surface damage caused by wear and foreign objects, etc., may affect the reliability and service life of the parts. By applying ceramic coating, the temperature in the combustion chamber of the engine can be improved, and the working efficiency of the engine can be improved.

2. Feature Advantages:

1) Refractory, High Temperature Resistance, Maximum Used Temperature: 1800 ºC (3272ºF)
2) Hardness Strength, Wear Resistance Up To Mohz 9.0 ; HRA 80-90
3) High Voltage, Good Insulation Performance ,Electrical Resistivity Up To 10∧14 Ohm.Cm
4) High Polished Surface Up To Rz0.8(Ra0.1)
5) Superior Mechanical Strength, MAX 10 MPa.m1/2 Fracture toughness
6) Pressure Resistance, Max 2300MPa compressive strength
7) Anti-High Corrosion Resistance, Such As Acid Alkali Resistance
8) Long Service Life


3. Material Features / Properties:

Composite(wt %)99%99.5%99.8%
ColorWhite or IvoryWhite or IvoryWhite or Ivory
Densityg/cm 33.823.93.92
HardnessHRA838585
Flexural StrengthMpa (psi*10 3 )375386381

4. Technical Parameters:

Technical Parameters of Ceramics
ItemsTest ConditionsUnit or Symbol99% AL2O395% AL2O390% AL2O3ZirconiaSteatiteSilicon Carbide
Volume Density--g/cm3≥3.70≥3.62≥3.40≥5.90≥2.60≥3.08
Tightness--Pa·m³/s≤1.0×10-11≤1.0×10-11≤1.0×10-11---
Liquid Permeability----PassPassPassPass-
Flexural Strength-MPa≥300≥280≥230≥1100≥120≥400
Elastic Modulus-GPa-≥280≥250≥220-400
Poisson Ratio-  --0.20~0.250.20~0.25---
Thermal Shock Resistance800℃( Room Temperature) Cycle: 10 timesPassPassPass---
Coefficient of Linear Expansion20℃~100℃×10-6 K-1---≤8-
20℃~500℃×10-6 K-16.5~7.56.5~7.56.5~7.56.5~11.2--
20℃~800℃×10-6 K-16.5~8.06.5~8.06.3~7.3-4
20℃~1200℃×10-6 K-1-7.0~8.5----
Coefficient of Thermal Conductivity20℃W/(m·k)-----90~110
1000℃
Dielectric Constant1MHz 20℃-9.0~10.59.0~109.0~10-≤7.5-
1MHz 50℃--9.0~10----
10GHz 20℃-9.0~10.59.0~109.0~10---
Volume Resistivity100℃Ω·cm≥1.0×1013≥1.0×1013≥1.0×1013-≥1.0×1012-
300℃≥1.0×1013≥1.0×1010≥1.0×1013---
500℃≥1.0×109≥1.0×108-----
Disruptive StrengthD.CkV/mm≥17≥15≥15-≥20-
Chemical Durability1:9HClmg/c㎡≤0.7≤7.0----
10%NaOHmg/c㎡≤0.1≤0.2-----
Grain Size-μm-3~12----

5. Process Flows:

Formulating --- Granulating --- Forming --- Sintering --- Grinding --- Printing --- Nickel Plating --- Assembing --- Brazing --- Inspecting --- Packing


6. Production Facilities: Prilling Tower , Forming Machine , High Temperature Sintering Kiln


7. Detection Devices:

Electric Performance Tester , Film Thickness Analyzer , Granulometer , Helium Mass Spectrometer Leak Detector , Universal Pull Force Meter


8. Our advantages: Quality Assurance ; Price Competitive ; Factory Supply Directly ; Good Service


9. Shipping and Package:

10. Our aimed market:


Notes:Above information only for reference and please contact with us for more details freely when you have any inquiry!

Quality 95% Fine Alumina Ceramic O Ring for sale
Send your message to this supplier
 
*From:
*To: Loudi Antaeus Electronic Ceramic Co.,Ltd.
*Subject:
*Message:
Characters Remaining: (0/3000)
 
Inquiry Cart 0