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High Hardness Alumina Ceramic Insulator HVDC Relay Case

Categories Ceramic Housing
Brand Name: Antaeus
Model Number: AD-K011
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.
Chemical ingredients: Al2O3
Max. Use Temp.: 1650℃
Bulk Density: 3.6g/cm3-3.9g/cm3
Water absorption: 0%
ROHS Hardness: ≥85
Flexural strength: 358(52) - 550 Mpa(psix10^3)
Compressive Strength: 2068(300) - 2600(377) Mpa(psix10^3)
Coefficient of thermal expansion: 7.6 - 8.2 / 1X10^-6/℃
Coefficient of thermal conductivity: 16-30.4 / W/m.K
Thermal Shock Resistance: 250℃
Dielectricity constant: 9-9.7 / 1MHz.25℃
Dielectric strength: 8.3(210) - 8.7(220) / ac-kV/mm(ac V/mil)
Volume Resistivity: >10^13 ohm-cm
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High Hardness Alumina Ceramic Insulator HVDC Relay Case

EV Alumina Ceramic Relay Housing / High Voltage DC Ceramic Contactor


1. Description:

There are two main factors that can affect the performance of the DC contactors, first is the burning of studs. This can be caused by the bad connection between the DC contactor and the external environment, which leads to abnormal temperature rise. Another factor is the contact welding which can be caused because of two main reasons: either the arc is not properly extinguished between the main contacts of contactors, or due to the air leakage between the contacts. You need to avoid these two mistakes to let the DC contactors perform efficiently.

2. Feature Advantages:

1) High elasticity modulus

2) High compressive strength.

3) Anti corrosion

4) Abrasion resistance

5) Impact resistance

6) High precision

7) High stability

8) Good advanced ceramic materials

9) High welding sealing performance

10) High hardness and high density

11) Low thermal conductivity

12) Chemical inertness

13) Good wear resistance

14) High Fracture toughness

15) Good insulation performance

16) High temperature resistance

17) A variety of specifications is available

18) Satisfy various technical requests

19) Lower medium spoilage

20) Stiffness texture

21) Widely apply for automotive ceramic sensor , ceramic heater ,electric heating


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 --- Inspecting --- Packing


6. Application Fields:

New energy vehicles, charging piles, solar power generation, energy storage and power storage system, electric vehicle power system and so on.


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


8. Detection Devices:

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

9. Order Flow Steps as belows: Inquiry ---Quotation --- Place an order --- Production --- Delivery


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

11. Shipping and Package:

12. Our aimed market:


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


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