Zirconia Drawing Machine Tower Round , Wire Wheels , Reel.
1. Description:
In the world of technical ceramics, there are two materials that are surpassed only by diamond and cubic boron nitride in terms of hardness – and both are used by Precision Ceramics USA as a base material for a wide range of technical components in an equally wide field of applications.Boron Carbide (B4C) is currently the hardest material produced in tonnage quantities and is the third hardest material known to man after diamond and cubic boron nitride. Not far behind it in the hardness stakes comes silicon carbide (SiC), steeped in history since it was first mass-produced in 1893 and probably the most common of all industrial abrasives.
1) High density.
2) High fracture toughness .
3) High hardness High Mechanical Strength.
4) Low thermal conductivity Excellent insulation .
5) Good Wear resistance.
6) Resistant to Corrosion and Chemical Attack.
7) Extreme Temperature Stability.
8) Outstanding Electrical and Electronic Properties.
3. Material Features / Properties:
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 --- Printing --- Nickel Plating --- Assembing --- Brazing --- Inspecting --- Packing
6. Application Fields:
Widely apply for 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!