Grade 1700 1800 1900 MoSi2 Molybdenum Disilicide MoSi2 heating elements
Molybdenum disilicide(MoSi2) heating element is 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 1800°C during oxidizing atmosphere. And the applicable temperature is 500-1700°C.
The resistivity of element rapidly rises as the temperature rises. Under normal operating conditions,generally the element resistance doesn’t change with the service time changing. So the old and new elements can be mixed used.
MoSi2 heating element is used in the high temperature under oxidizing atmosphere. It will form theSiO2 film which can keep the element from being melted. When the temperature of element is more than 1700°C,the MoSi2 heating element must not be used in the temperature between 400°Cand 700°C for a long time; otherwise the element will be cremated under the strong oxidizing function in the low temperature.