Product Description
Product Description
Oxygen-resistance under high temperature: in oxidizing atmosphere, a layer of compact quartz protective film is formed on the surface of element owing to the high temperature combustion, which prevent Mosi2 from oxidizing more. When the element temperature is higher than 1700 °C, the film becomes melting. It’s not suitable for long time use in the temperature range of 400-700°C, otherwise, the element will be powdering for the strong oxidation under low temperature.
Material Grade: 1700, 1800
Diameter: D1/D2, mm/mm
Hot Zone Length: Le, mm
Cold Zone Length: Lu, mm
Shank Spacing: A, mm
Examples:
W-Shape, Material Grade 1800, D1=6mm, D2=12mm, Le=300mm, Lu=250mm, A=50mm
Specify as: Songyu SY18, W-Shape, 6/12 x 300 x 250x 50
MoSi₂ Heating Element Advantage
1 High purity
2 High temperature resistance
3 Energy-saving
4 Chemical stability
5 Long life
6 Easy maintenance
Physical Properties of MoSi₂ Heating Element
Physical properties
|
Volume Density
| Bend Strength
| Porosity Rate
| Water Absorption
| Hot Extensiblity
|
5.5-5.6g/cm³
| 15-25kg/ cm2
| 7.4%
| 1.2%
| 4%
|
Indicators in Different Atmospheres
Atmosphere
| SP1700
| SP1800
|
Air
| 1700
| 1800
|
N2 Nitrogen
| 1600
| 1700
|
Ar Ne Argon, Helium
| 1600
| 1700
|
Dry Hydrogen (dew point)-80℃
| 1150
| 1150
|
Wet Hydrogen (dew point)-20℃
| 1450
| 1450
|
Exogas (e.g. 10% CO2, 50% CO, 15%H2)
| 1600
| 1700
|
Exogas (e.g. 40% CO2, 20% CO)
| 1400
| 1450
|
Cracked and partially burnt ammonia
| 1400
| 1450
|
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