Silicon carbide roller rod
Reaction-sintered silicon carbide roller rods are suitable for high-temperature firing zones in roller kilns for daily ceramics, sanitary kilns, building kilns, glass, and magnetic materials.
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keyword： Silicon carbide roller rod
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Product Description
Reaction-sintered silicon carbide rods are suitable for high-temperature firing zones in roller kilns for daily ceramics, sanitary kilns, building kilns, glass, and magnetic materials. Reaction-sintered silicon carbide rods have a high load-bearing capacity at high temperatures, do not bend or deform during long-term use, and have a service life more than 10 times that of alumina ceramic rods.
Physical and chemical indicators
| Project | Unit | Index |
| Maximum operating temperature | ℃ | 1380 |
| Density | g/cm3 | ≥3.02 |
| Porosity | % | <0.1 |
| Bending strength | Mpa | 250(20℃) |
| Mpa | 280(1200℃) | |
| Elastic modulus | Gpa | 330(20℃) |
| Gpa | 300(1200℃) | |
| Thermal conductivity coefficient | W/m.k | 45(1200℃) |
| Coefficient of thermal expansion | K-1x10-6 | 4.5 |
| Vickers hardness | HV2 | ≥2100 |
| Acid and alkali resistance | Excellent |
The bending strength of reaction-sintered silicon carbide rods is calculated based on 250MP with a safety factor of 5, and the load-bearing capacity is determined for a length of 1 meter.
If the length of the product is L, the load-bearing capacity can be calculated using the following formula: concentrated load = surface value 1/L, uniformly distributed load = surface value * 1/L.
The applicable temperature for this load-bearing capacity is 1380℃.
Rod load-bearing capacity table
| Length (m) | Size | Concentrated load capacity (kg) | Uniformly distributed load capacity (kg) | ||
| L | D1 | D2 | delta | ||
| 1 | 35 | 23 | 6 | 70 | 140 |
| 1 | 40 | 28 | 6 | 97 | 194 |
| 1 | 45 | 33 | 6 | 130 | 260 |
| 1 | 60 | 46 | 7 | 283 | 566 |
| 1 | 80 | 46 | 8 | 604 | 1208 |
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