Good Thermal Shock Resistant Silicon Nitride Welding Ring
Silicon Nitride Welding ring are used on automative welding for car manufacturers and suppliers . The physical and chemical properties as well as extreme stress tolerance extend the possible range to applications in production engineering . Thie lead to high speed and high circle life. The silicon nitride welding ring solved the application problems : hardness , wear resistance , thermal shock resistance , impact strength , high temperature resistance , and long service life .
Properties sheet of Silicon Nitride material :
Properties Units Silicone Nitride
Density g / cm³ 3.23
Water absorption % 0
Coefficient of thermal expansion 10-6/K 3.2
Modulus of Elasticity Young's Mod GPa 300
Poisson's ratio / 0.26
HV Hardness HV MPa 1500
Flexural Strength @ room temperature MPa 720
Flexural Strength @700°C MPa 450
Compressive Strength @ room temperature MPa 2300
Fracture Toughness MPa *m 1/2 6.2
Heat conductivity @ room temperature W/ m*k 25
Electrical Resistivity @ room temperature Ω*mm2 /m >1013
Max use temperature °C 1050
Resistance to acid alkaline / high
Dielectric Constant / /
Dielectric Strength KV/mm /
Thermal Shock Resistance △ T ( °C ) /
Tensile Strength @ 25 °C MPa /
Application photo of silicon nitride welding ring :
| 3X Ceramic Parts Company Limited | |
|---|---|
| Product Category | Specialty Ceramics |
| Product Name | Ceramic Welding Ring |
| Specialty Ceramic Type | Silicon Nitride |
| Applications | Dielectric |
| Thermal Conductivity | 15 to 20 W/m-K (8.67 to 11.56 BTU-ft/hr-ft²-F) |
| CTE | 3.2 µm/m-C (1.78 µin/in-F) |
