Description of W-type Molybdenum Disilicide Heating Rods
The W-type MoSi2 Heating Elements are known for their longevity and reliability at a high temperature. The W-type heating rod is generally placed horizontally. Due to the more heat-generating end, it's heating efficiency is higher and cost-effective than other heating elements. This heating element consists of 2 cold ends (Lu), 3 or more U-shaped hot zone (Le). In usually, the Lu has a twice diameter of Le.
MoSi2 Heating Elements are manufactured by powder metallurgy. They consist of molybdenum disilicide and additives to prevent recrystallization. Because MoSi2 is completely stable at 1800ºC (3270 ° F), it has higher temperature performance than other types of heating elements. The resistance of the MoSi2 element to oxidation lies in the formation of impermeable quartz or glass-like protective layer, which will be re-formed upon heating if it is damaged during operation.
MoSi2 devices have low resistivity and have positive resistance-temperature characteristics. Compared to metal heating elements, it can be used under very high watt loads. Due to its high-temperature oxidation resistance, MoSi2 resistors remain constant at a constant temperature throughout their useful life. Even in series, new and old components can be used simultaneously in the same furnace.
Specification of W-type Molybdenum Disilicide Heating Rods
Hot zone/cold end diameter: 3/6, 4/9, 5/10, 6/12, 7/14, 9/18 or 12/24
A: center distance between legs
Lu: cold end length
Le: hot zone length
All diameters are available in the following grades:
MU1766 -1700 - maximum element temperature 1700ºC (3090ºF)
MU1766 -1800 - maximum element temperature 1800ºC (3270º
Applications of MoSi2 Heating Elements
Molybdenum Disilicide Heating Elements can be used for temperatures up to 1800 °C, in electric furnaces used in laboratory and production environments in the production of glass, steel, electronics, ceramics, and in heat treatment of materials.