1.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.
2.Resistance property
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.
3.Phiscal property
4.Chemistry property
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. When the temperature of element is more than 1700°C,the MoSi2 heating element must not be used in the temperature between 400°C and 700°C for a long time; otherwise the element will be cremated under the strong oxidizing function in the low temperature.
2.Resistance property
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.
3.Phiscal property
Volume Density | 5.5g/cm3 | Porosity | 7.40% |
Bending Strength | 15-25kg/cm3 | Water absorption | 1.20% |
Vickers Hardness | (HV)570kg/mm2 | Heating Elongation Rate | 4% |
4.Chemistry property
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. When the temperature of element is more than 1700°C,the MoSi2 heating element must not be used in the temperature between 400°C and 700°C for a long time; otherwise the element will be cremated under the strong oxidizing function in the low temperature.
Details | Type: | 1700C, 1800C | |||
Shape | U, W, ROD, UJL, WJL, and other special shape | ||||
Diameters | 3/6, 4/9, 6/12, 9/18, 12/24mm | ||||
Lengths | Up to 2000mm | ||||
Used temperature | 1300C to 1800C | ||||
Max. Using temperature | In oxidizing atmosphere, it can reach 1800C | ||||
Operation temperature in different atmosphere | Atmosphere | 1700type | 1800type | ||
No2, O2, CO2, Air | 1700 | 1800 | |||
He, Ar, N | 1650 | 1750 | |||
SO2 | 1600 | 1700 | |||
Co,N2 | 1150 | 1150 | |||
Wet H2 | 1500 | 1600 | |||
Dry H2 | 1350 | 1450 | |||
Application | MoSi2 heating element is used in the furnace temperature from 1300C to 1700C. It is extensively used in the industries of metallurgy, magnetic materials, glass, ceramic refractory, crystal electronic device, industrial furnace manufacture, lab furnace, Laboratory furnace, industry furnace, glass furnace, ceramic furnace etc. |