High thermal conductivity: Thermal conductivity up to 90 W/m·K, providing effective heat dissipation.
High temperature resistance: Maintains stable performance at temperatures up to 1200℃.
Wear resistance: Hardness is more than twice that of traditional high-speed steel rolls.
Chemical stability: Resistant to strong acids, strong bases, and molten metal corrosion.
Lightweight: Density is only 1/3 that of steel, reducing equipment inertia.
Self-lubricating: Friction coefficient as low as 0.1-0.2, reducing energy consumption.
Product Introduction of Silicon Nitride Ceramic Roller Rings
High-thermal-conductivity silicon nitride ceramic roller rings are engineering ceramic components made from silicon nitride (Si₃N₄) material, manufactured using hot pressing or gas pressure sintering processes. Silicon nitride ceramics are formed by the covalent bonding of silicon (Si) and nitrogen (N) elements, resulting in a unique crystal structure that gives them excellent overall performance.
Application Fields
1. Metallurgy Industry: Used in high-temperature rolling and molten metal processing scenarios, such as copper foil and stainless steel sheet rolling.
2. Electronics and Semiconductors: High-power LED heat dissipation substrates, IGBT module substrates, etc.
3. Aerospace: Gas turbine components, high-temperature structural components.
4. Chemical Equipment: Corrosion-resistant seals, wear-resistant components.
Technical Parameters
Performance indicators | Parameter value | illustrate |
Thermal conductivity | ≈90W/m·K | Excellent thermal conductivity |
Coefficient of thermal expansion | 3.2×10⁻⁶/℃ | Approaching metallic materials reduces thermal stress. |
Vickers hardness | 1400-1600 HV | Second only to diamond and cubic boron nitride. |
Flexural strength | 800 MPa | High-strength support capability |
fracture toughness | 6.0 MPa·m | Excellent impact resistance. |
Temperature resistance range | In air: 1000℃ / In protective atmosphere: 1400℃ | Good high-temperature stability. |
coefficient of friction | 0.1-0.2 | Excellent self-lubricating properties |
Supports custom specifications.
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