Advanced Ceramic Housing Material Abrasion Resistant For Electric
Vehicle Relay
1. Description:
An unsuppressed coil can create a very high voltage spike or back
EMF while a contactor is de-energizing (being turned off), possibly
causing damage to the driver or other sensitive circuit. When
shutting off a coil, suppressing or clamping the transient voltage
is extremely helpful. Therefore, as a consistent procedure for
transient clamping, it is recommended to use a Zener-diode. 42 VDC
max is a standard relay coil value for back EMF. Also, note that
the use of single diode suppression relays with low level to 2A
ratings does not affect switching efficiency. Using Zener-diode
suppression to prevent the reduction of contact switching for a
lifetime and reduce potential contact sticking or welding for
relays with 5A and above current rating.
2. Feature Advantages:
1).Excellent electrical insulation
2).High hardness
3).Relatively low strength and fracture toughness
4).Resistance to wear and corrosive
5).Excellent thermal stability
6).Resistance to high temperatures
7).High electrical resistivity
8).Good chemical stability and resistance
9).High corrosion resistance
10).Excellent thermal shock resistance
11).High thermal insulation
Pictures:
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
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:
Loudi Antaeus Electronic Ceramic Co.,Ltd is a fully integrated technical ceramics manufacturer complete
with a Ceramic Engineering Department, Development Labs, and
Up-to-Date Quality Programs.We can assist with the development of
your part, to find an economical solution perfect for your needs.
Precision, Technical Ceramic Insulators
We produce Alumina Ceramic components and assemblies for new energy
vehicles ,Zirconia ceramic products . Antaeus Ceramics Company’s
processes are dry pressing, extrusion, secondary machining,
glazing, and both centerless and flat grinding. We have the finest
equipment, enabling us to produce high quality technical ceramics
at competitive prices, in the quantities you may require. Antaeus
Ceramics offers its engineering abilities to help you with your
design and material selection for your unique application.
Application:
These Advanced technical ceramic components find application in a
number of industries, some of them being sealing technology, pumps,
wire-drawing, battery/ cell manufacturing, sand-blasting, chemical,
electronics, textile, automotive, etc.
Customized are welcome according to your drawings or samples.
FAQs (Frequently Asked Questions)
Q1. Are you a factory or trading company?
A: We are a manufacturer of over 19 years of experience. Welcome to
visit our factory.Factory address is Loudi Economy and
Technological Development Zone,Hunan,China.
Q2: Do you send a sample to check?
A: Sure, sample in stock is free and freight collect.
Q3: When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry. If
urgent ,Please call us or chat online.
Q4:What is your Capacity?
A:300,000 pcs per day;
Q5: Are the ceramics good quality?
A:We have passed the complete quality-control system
ISO9001,IATF16949, ISO14001 and IRIS certification. We have more
than 200 advanced testing equipment and instruments,All the Alumina
ceramics are 100% fully inspected,including IQC, IPQC, FQC, and OQC
process.
Q6:What is the Lead time?
A: About 15-35 days,according to the quantities required;
Q7: Is it available to provide customized products?
A:Yes,and we can do OEM and ODM.
Loudi Antaeus Electronic Ceramic Co.,Ltd
Factory address:Loudi Economy and Technological Development
Zone,Hunan,China.
Contact person:Alice Deng
Tel:+8615073852630 (wechat)
Mail: alice@andidz.com
Skype: alicedeng0629
