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1800 ℃ molybdenum disilicide heating element, heating element of muffle furnace, vacuum furnace and smelting furnace
Molybdenum Disilicide Heater is a kind of resistance heating element made from Molybdenum Disilicide. It can be exerted under the high temperature of the oxidated atmosphere. MoSi2 heating element rod has the unique function of high temperature anti-oxidation. Under the oxidated atmosphere, the maximum temperature of MoSi2 elements is 1800°C. It can be made into various types, including U-type, W-type, right-angle as well as circular type.
Molybdenum Disilicide Heater is used in the high temperature under oxidizing atmosphere. It will form the SiO2 film which can keep the element from being melted. During the oxidizing process, the SiO2 protecting film is formed again when the element continues to be used. The MoSi2 heating element must not be used in the temperature between 400C and 700C for a long time, otherwise the element will be cremated under the strong oxidizing function in the low temperature.
Physical property of Silicon Molybdenum Rod :
| 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% |
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.
Max temperatures of MoSi2 Heating Element in Different Atmospheres
| Atmosphere | Max. element temperature | |
| MS1700 | MS1800 | |
| Air | 1700℃ | 1800℃ |
| Nitrogen | 1600℃ | 1700℃ |
| Argon, Helium | 1600℃ | 1700℃ |
| Hydrogen | 1100-1450℃ | 1100-1450℃ |
| N2/H2 95/5% | 1250-1600℃ | 1250-1600℃ |
| Applications | Heat treatment Forging Sintering Glass melting Refining Radiant tubes | Laboratory furnaces Testing equipment High temperature sintering production furnaces |
Molybdenum Disilicide Heating Elements Details
* The applicable temperature is between 500-1700°C
* Max temperature 1800°C
* The element cannot be used for rather long time in 400-700°C
Molybdenum Rod characters:
1. diameter:3/6mm;6/12mm;9/18mm;12/24mm
2. length:Lu length from 150 to 700mm,Le length from 150 to
600mm,customized is available .
3. operation temperature: from 500C to 1700.C .Max temperature can
up to 1800.C
4. shape : U type ; W type ;straight type ;L type
5. function: ceramic ,magnetic material,glass ,metallurgy
,fireproofing material furnace.
Mosi2 heating element consists of hot zone and cold zone, the
welding point is beautiful ,smoothly, without bump
The Advantages of Molybdenum Disilicide Heating Elements:
1· Economical, clear and safe.
2· Superior oxidation resistance, low corrosion.
3· Little deformation and better radiance.
4· Long service life, easy installation and maintenance.
5· Efficiently apply a wide range of products and atmospheres
6. Our fast and professional transportation:
Packing and shipping :
Packaging Details: Packed with sponge and box case, and then put it into wooden case.
Lead Time: Shipped in 10 days after payment Transportation: Most by air.
