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Ceramic beam SiC silicon carbide cross beam
Reaction bonded silicon carbide product-RBSIC/SISIC beam, is the load-bearing frame of shuttle kiln, tunnel kiln, double roller kiln, etc. It is the ideal energy-efficient refractory kiln furniture with the features of high temperature load capacity, size stability, oxidation resistance, flex resistance, thermal shock resistance, corrosion resistance capacity and long service life(under 1380℃ degree). At present it is mainly used in electric porcelain industry, domestic ceramics, sanitary ware production industry and the actual production of various industrial furnaces. It can save energy observably without increasing the weight of kiln car.
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 |