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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.

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SPK SiC Heating element （Non-standard customization）

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SiC Heater

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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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