SPK SiC Heating element (Non-standard customization)
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SPK SiC Heating element (Non-standard customization)
- Description
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SPK SiC Heating element (Non-standard customization)
Silicon carbide electric heating element is a rod-shaped non-metallic high-temperature electric heating element made of high-quality green silicon carbide as the main raw material after processing, high-temperature silicification and recrystallization. Compared with metal electric heating elements, SiC elements have the characteristics of high service temperature, oxidation resistance, corrosion resistance, long service life, small deformation, and convenient installation and maintenance. Therefore, silicon carbide rods are widely used in various high-temperature electric furnaces and other electric heating equipment in magnetic materials, powder metallurgy, ceramics, glass, metallurgy, machinery and other industries.
Technical Index of Silicon Carbide SiC Heating Elements
specific gravity
2.6~2.8g/cm³
bend strength
>300kg
hardness
>9 MOH′S
Tensile strength
>150kg/cm³
porosity rate
<30%
Radiancy
0.85
The influence to the surface of Silicon Carbide SiC Heating Elements in different Operating Temperature and Surface Load
atmosphere
Furnace Temperature(°C)
Surface Load(W/cm2)
The influence on the Rod
Ammonia
1290
3.8
The action on SiC produces methane and destroys the protection film of SiO2
Carbon dioxide
1450
3.1
Corrode SiC
Carbon monoxide
1370
3.8
Absorb carbon powder and influence the protection film of SiO2
Halogen
704
3.8
Corrode SiC and destroy the protection film of SiO2
Hydrogen
1290
3.1
The action on SiC produces methane and destroys the protection film of SiO2
Nitrogen
1370
3.1
The action on SiC produces insulating layer of silicon nitride
Sodium
1310
3.8
Corrode SiC
silicon dioxide
1310
3.8
Corrode SiC
Oxygen
1310
3.8
SiC oxidized
Water-vapor
1090-1370
3.1-3.6
The action on SiC produces hydrate of silicon
Hydrocarbon
1370
3.1
Absorb carbon powder resulted in Hot pollution
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