作者:本站原创 发布日期:2015-01-29
The physical and chemical properties of silicon carbide electric heating element
Silicon carbide electric heating element uses high purity green six-party silicon carbide as the main raw material and adopts unique high temperature sintering technology to make it recrystallization to get non-metal silicon carbide products. Its highest temperature of surface heat can reach 1450 ℃. It is durable high quality environmental protection products with high infrared emissivity, high mechanical strength, strong vibration resistance, good chemical stability, and easy installation etc. To meet the needs of different customers, our company has products with different specification, such as equal diameter rod, u-shaped rods, rods, five stick, three-phase rods, single threaded rods, 12 -, double screw rods is Ф Ф 60. It’s widely used in high temperature furnace and other electric heating devices of magnetic material, powder metallurgy, electronic ceramics, glass, aluminum smelting, refractory materials industries.
Physical Characteristics
ITEM |
UNIT |
INDEX |
|||
Chemical components |
Content of SiC |
% |
≥90 |
||
|
maximum service temperature |
ºC |
1450 |
||
refractoriness |
SK |
≥39 |
|||
T2 refractoriness under load
|
ºC |
≥1750 |
|||
Bending Strength |
Mpa at 25℃ |
≥45 |
|||
high temperature bending strength
|
Kg/cm2 |
≥550 |
|||
Compressive strength |
Mpa |
≥140 |
|||
thermal expansivity |
1000℃ ( × 10-6/℃ ) |
0.42-0.48 |
|||
porosity |
% |
6-8 |
|||
The proportion of performance |
g/cm3 |
2.4-2.75 |
|||
Thermal conductivity |
W/m + ℃ at 1000℃ |
14-18 |
|||
|
|
Relations