High-Power Electric Molybdenum Disilicide Heating Elements
What’s theMosi2 Electric Heater Element?
Molybdenum disilicide(MoSi2) heating element is one resistance
heating component made from MoSi2 or as the basic material. When
it’s heated to high temperature under the oxidizing atmosphere, one
dense MoSi2film will be formed on its surface to protect the
element against oxidizing further. Therefore, the element has
unique anti-oxidation property under high temperature atmosphere.
The highest temperature can reach 1800°C, the applicable
temperature is between 500-1700°C.
MoSi2 has been produced as an electric heating element for use in
air, at temperatures beyond 1600 °C. A known commercial MoSi2
heating element is cermet, which is made by bonding a mixture of
MoSi2 particles together with an aluminosilicate glass phase,
usually as 20% of the total volume.
Although top-grade MoSi2 elements can function at temperatures of
up to 1800 °C, the material is highly brittle and can suffer
severely from creep during use. However, they offer process
benefits as they can work at high electrical loads without aging,
and do not exhibit increasing electrical resistivity during use.
They are oxidation-resistant in air, oxygen, and oxygen-rich
atmospheres.
Application of MoSi2 heater:
| Item | name | distinction criterion | specification | Using range |
| Heating elements | 1700 type | Element operating temperature 1700℃ is acceptable | Le Φ 6-12W type/U type/L type/all kinds of hetero type / stripe shape | high temperature electric resistance furnace |
| 1800 type | Element operating temperature 1800℃ is acceptable |
| 1800J type | Element operating temperature≥1800℃ | Le Φ 3-12W type | Special,high temperature and high-power electric resistance furnace |
| 1800T type | Element operating temperature≤1800℃ | Le Φ 3-12W type U type | Not oxidized special air high temperature electric resistance
furnace |
2. Physcial property of molybdenum disilicide heating element MoSi2
rod:
| Density | Bending Strength | Hardness | Apparent Porosity | Water Absorption | Elongation | Fracture Toughness | Compressive Strength |
| 5.8g/cm3 | 350Mpa | 12.0Gpa | ±2% | 0 | 4% | 4.5Mpa.m1/2 | 650Mpa |
Packaging & Shipping
1. From the inside to outer packaging, is foam sponge, carton,
wooden case.
2. Sea or Air transportation, DHL express.
3. Please make sure the 'shipping address' is your confirmed
address.
4. We do check everything in good condition before we ship your
parcel out.
5. We will process your order ASAP after payment is confirmed.
Please tell us the following data of molybdenum disilicide MoSi2
rod heating element when send enquiry to us :
d = the diameter of hot zone ?
c = the diameter of cold zone ?
Le = the length of hot zone ?
Lu = the length of cold zone ?
a=Shank spacing
g=junction length
How many pcs ?
