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Sealed Al2O3 Machining Ceramic Parts Alumina Ceramic Relay Shell

  • Sealed Al2O3 Machining Ceramic Parts Alumina Ceramic Relay Shell
Place of Origin Hunan,China
Brand Name Antaeus
Certification /
Model Number AD-K026
Minimum Order Quantity Negotiation
Price Negotiation
Packaging Details Inner vacuum packaging, outside carton.
Delivery Time 15-45 days
Payment Terms T/T or Negotiation
Supply Ability Full Supply

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Product Details
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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Sealed Machining Ceramic Parts

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Al2O3 machining ceramic parts

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Relay Shell al2o3 ceramics
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Product Description

EV Alumina Ceramic Relay Housing / High Voltage DC Ceramic Contactor

 

1. Description:

One such example is a cylinder with an internal diameter of just 0.2 of an inch. The internal surface must be metallized to a very tight thickness tolerance, within 0.007 to 0.0012 of an inch. Themetallization process is based on a proprietary molybdenum-manganese (MoMn) refractory ink system, and is matched to specific high-purity alumina ceramic bodies to ensure consistent high strength bonds. The glass phases in the MoMn metallization bond with the glass phases in the ceramic to form the bond. The metallized surface receives a secondary coating of nickel to seal and improve wettability for later brazing.

2. Feature Advantages:

1) High elasticity modulus

2) High hardness and high density

3) Good insulation performance

4) Lower medium spoilage

5) Stiffness texture

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

 

3. Material Features / Properties:

Composite (wt %) 99% 99.5% 99.8%
Color   White or Ivory White or Ivory White or Ivory
Density g/cm 3 3.82 3.9 3.92
Hardness HRA 83 85 85
Flexural Strength Mpa (psi*10 3 ) 375 386 381

 

4. Technical Parameters:

Technical Parameters of Ceramics
Items Test Conditions Unit or Symbol 99% AL2O3 95% AL2O3 90% AL2O3 Zirconia Steatite Silicon 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 -- -- Pass Pass Pass   Pass -
Flexural Strength - MPa ≥300 ≥280 ≥230 ≥1100 ≥120 ≥400
Elastic Modulus - GPa - ≥280 ≥250 ≥220 - 400
Poisson Ratio - 　 - - 0.20～0.25 0.20～0.25 - - -
Thermal Shock Resistance 800℃( Room Temperature) Cycle: 10 times   Pass Pass Pass - - -
Coefficient of Linear Expansion 20℃～100℃ ×10-6 K-1 - - -   ≤8 -
20℃～500℃ ×10-6 K-1 6.5～7.5 6.5～7.5 6.5～7.5 6.5～11.2 - -
20℃～800℃ ×10-6 K-1 6.5～8.0 6.5～8.0 6.3～7.3   - 4
20℃～1200℃ ×10-6 K-1 - 7.0～8.5 - - - -
Coefficient of Thermal Conductivity 20℃ W/(m·k) - - - - - 90～110
1000℃
Dielectric Constant 1MHz 20℃ - 9.0～10.5 9.0～10 9.0～10 - ≤7.5 -
1MHz 50℃ - - 9.0～10 - - - -
10GHz 20℃ - 9.0～10.5 9.0～10 9.0～10 - - -
Volume Resistivity 100℃ 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 Strength D.C kV/mm ≥17 ≥15 ≥15 - ≥20 -
Chemical Durability 1:9HCl mg/c㎡ ≤0.7 ≤7.0 - - - -
10%NaOH mg/c㎡ ≤0.1 ≤0.2 - -- - -
Grain Size - μm - 3~12 - - - -

 

5. Process Flows:

Formulating --- Granulating --- Forming --- Sintering --- Grinding --- Inspecting --- Packing

Sealed Al2O3 Machining Ceramic Parts Alumina Ceramic Relay Shell 0

 

6. Application Fields:

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

Sealed Al2O3 Machining Ceramic Parts Alumina Ceramic Relay Shell 1

 

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

Sealed Al2O3 Machining Ceramic Parts Alumina Ceramic Relay Shell 2

 

8. Detection Devices:

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

Sealed Al2O3 Machining Ceramic Parts Alumina Ceramic Relay Shell 3

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

Sealed Al2O3 Machining Ceramic Parts Alumina Ceramic Relay Shell 4

 

 

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

Sealed Al2O3 Machining Ceramic Parts Alumina Ceramic Relay Shell 5

11. Shipping and Package:

Sealed Al2O3 Machining Ceramic Parts Alumina Ceramic Relay Shell 6

12. Our aimed market:

Sealed Al2O3 Machining Ceramic Parts Alumina Ceramic Relay Shell 7

 

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

 

Tags:

ISO9001 Ceramic Housing

HVDC Relay ceramic case

High Hardness Alumina Ceramic Insulator