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Ceramic welding parts made of silicon nitride significantly increase service life and enable high levels of precision and greater accuracy over extended periods in nut/projection welding. Metal welding pins often need to be replaced several times a day due to wear and adhering slag, whereas welding guide pins made of silicon nitride ceramics only need to be replaced about once a month.
Main Properties of Ceramic Welding Components
| Item | Unit | Si3N4 |
| Type | - | gas pressure sintered |
| Density | g/cm3 | 3.22 |
| Color | - | dark grey |
| Water Absorption | % | 0 |
| Young Modulus | Gpa | 290 |
| Vickers Hardness | Gpa | 18 - 20 |
| Compressive Strength | Mpa | 2200 |
| Flexural Strength | Mpa | 650 |
| Thermal Conductivity | W/m.K | 25 |
| Thermal Shock Resistance | Δ(°C) | 450 - 650 |
| Max. Working Temp. | °C | 1200 |
| Volume Resistivity | Ω ·cm | > 10^14 |
| Dielectric Constant | - | 8.20 |
| Dielectric Strength | kV/mm | 16 |
* Tests under room temperature environment;
* The above information is offered for comparison only. Exact
properties will vary depending on the manufacturing method.
>>> Characteristics and Advantages:
1. High thermal shock resistance;
2. Superior electrical insulation;
3. High working temperature (> 1000 degree C);
4. Long service life (25X higher than KCF);
5. No welding spatter adhesion;
1. High thermal shock resistance;
2. Superior electrical insulation;
3. High working temperature (> 1000 degree C);
4. Long service life (25X higher than KCF);
5. No welding spatter adhesion;
