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Silicon carbide recuperator for combustion
Reaction bonded silicon carbide radiation tube also called sic flame tube or ceramic inner pipe, is widely used in tunnel kiln, shuttle kiln, roller kiln and other industry furnaces with its good thermal conductivity. As the fire pushing equipment in steel, metallurgy and other industries, it is the ideal temperature balancer and heat conduction device under high temperature/corrosion/wear conditions.
High thermal stress bearing
The inner pipes can combined into required length inner pipe according to the length of the radiation tube
The silicon carbide flame tube won't damage the flame inner tube and radiation tube while allowing the metal burner tube bending.
Features:
SPECIFICATION:
Index |
RSiC |
NSiC |
RBSiC |
SiC |
Bulk density(g/cm3) |
2.65-2.75 |
2.75-2.85 |
≥3.02 |
2.8 |
SiC(%) |
≥99 |
≥75 |
83.66 |
90 |
Si3N4(%) |
0 |
≥23 |
0 |
0 |
Si(%) |
0 |
0 |
15.65 |
9 |
Porosity(%) |
15-18 |
10-12 |
0.1 |
7-8 |
Bending strength(MPa) |
80-100(20℃) |
160-180(20℃) |
250(20℃) |
500(20℃) |
Bending strength(MPa) |
90-110(1200℃) |
170-180(1200℃) |
280(1200℃) |
550(1200℃) |
Bending strength(MPa) |
90-120(1350℃) |
170-190(1350℃) |
- |
- |
Modulus of elasticity(GPa) |
300(20℃) |
580(20℃) |
330(20℃) |
200 |
Modulus of elasticity(GPa) |
- |
- |
300(1200℃) |
- |
Thermal conductivity(w.m-1.k-1) |
36.6(1200℃) |
19.6(1200℃) |
45(1200℃) |
13.5-14.5(1000℃) |
Coefficient of thermal expansion(K-1x10-6) |
4.69 |
4.7 |
4.5 |
3 |
Rigidity |
- |
- |
13 |
- |
Max working temperature(℃) |
1620(oxid) |
1450 |
1380 |
1300 |