Hunan Meicheng Ceramic Technology Co., Ltd.
Hunan Meicheng Ceramic Technology Co., Ltd.
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Relay Ceramic Sealed Connector Parts
1. Description:
This product is produced with high-purity toughened alumina ceramics and thick-film nickel plating technology.
2. Key Words:
DC Relay, relay ceramic parts,95% alumina,dry-processing,high strength and high welding and sealing performance,brazing different materials such as copper and alloys,seismic and tensile,withstand high current and arc shock,reaching the reliable sealing and insulation standards of DC high-voltage relays,new energy vehicles and DC high-voltage electronic control.
3. Technical 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 | |
