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Molybdenum disilicide (MoSi2) heating elementis a resistance generate-heating
component made from MoSi2 or the basic material. It is used in high temperature
under the oxidizing atmosphere, it looks like glass in its surface and form a light SiO2
glass film which can protect the element not to be oxidized. So this kind of element has
unique effect for resisting oxidization in the high temperature. It is used to the highest
temperature up to 1800C during oxidizing atmosphere. According to your request, our
company can produce the products of Pole, "U", "W" and "U"-right angle shapes, etc.
MoSi2 heating element can usually make use of furnace temperature from 1300C to
1800C. It is extensively used in the industries of metallurgy, glass, ceramic refractory,
crystal electronic device, industrial furnace manufacture, etc.. It is an essential ideal
element when the products are sintering in the high temperature.
MoSi2 heating elements physics and chemistry characters:
1. Physics Characters
|
Volume Density |
Bending Strength |
Vickers Hardness |
Porosity |
Water absorption |
Heating Elongation Rate |
|
5.5 g/cm3 |
15-25 kg/cm3 |
(HV)570kg/mm2 |
7.4% |
1.2% |
4% |
2. Chemistry Character
MoSi2 heating element 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.
3. The Using Temperature Under the Different Atmospheres
|
Atmosphere |
The Maximun Using Temperature of Elements |
|
|
1700 |
1800 |
|
|
No2 ,Co2,O2,Air |
1700°C |
1800°C |
|
He ,Ar ,Ne |
1650°C |
1750°C |
|
So2 |
1600°C |
1700°C |
|
CO ,H2 |
1500°C |
1600°C |
|
Wet H2 |
1400°C |
1500°C |
|
Dry H2 |
1350°C |
1450°C |
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