Hunan Meicheng Ceramic Technology Co., Ltd.
Hunan Meicheng Ceramic Technology Co., Ltd.
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Ceramic Electronic Components for EV Relays and HVDC Contactors, White Porcelain Case for Arc Extinguish
1. Description:
This alumina ceramic disc is made of 95% alumina, it is coasting manganese nickel metal on surface.
2. Key Words:
New energy, EV relay, HVDC contactor, Fast acting fusegear, Vacuum interrupter, Power battery cell connector, Arc extinguish,uniform texture and good batch stability,compact, continuous, smooth and weldability,high flexural strength, high tensile strength and good air tightness,high frequency, high power and good safety components,PHEV vehicles, power charing stations, power storage stations and urban commuting shuttles,95% alumina,white, pink.
3. Parameters:
| Product Parameters | ||
| Physical Property | Material | 95% Alumina |
| Production Process | Dry Pressing | |
| Product Dimension | Per customers' drawing | |
| Density (g/cm3) | 3.70-3.75g/cm3 | |
| Water Absorption | 0% | |
| Mechanical Performance | Flexural Strength (Mpa) | 310Mpa |
| Modulus of Elasticity (Gpa) | 310Gpa | |
| Hardness (Gpa) | 12.9Gpa | |
| Poisson Ratio | 0.23 | |
| Thermal Character | Linear Thermal Expansion Coefficient | 7.2 |
| Heat Conductivity (W/mk) | 23 | |
| Electrical Property | Dielectric Constant | 9.2 |
| Dielectric Loss Tangent (x10-4) | 8 | |
| Insulation Strength (x106V/M) | 15 | |
| Metalized Ceramic Performance | Air Tightness (Pa·m3/s) | ≤10-8 |
| Bulk Resistivity (Ω·cm) | ≥1010 (20°C), ≥106 (300°C) | |
| Bonding Strength (Mpa) | ≥120Mpa | |
| Metallization Thickness (μm) | ≥20μm | |
