W-type Molybdenum Disilicide Heating Rods Description
The W-type Molybdenum Disilicide 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, its 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 a 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.
W-type Molybdenum Disilicide Heating Rods Specification
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
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SIZES AVAILABLE
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Size
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Hot
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Cold
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Standard
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Zone
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End
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"A"
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Le Ø
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Lu Ø
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Distance
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mm
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in
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mm
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in
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mm
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in
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3/6
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3
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0.12
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6
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0.24
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25
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0.98
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4/8
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4
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0.16
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9
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0.35
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25
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0.98
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6/12
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6
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0.24
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12
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0.47
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50
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1.97
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9/18
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9
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0.35
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18
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0.71
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60
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2.36
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12/24
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12
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0.47
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24
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0.94
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80
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3.15
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All diameters are available in the following grades:
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MU1766 -1700 - maximum element temperature 1700ºC (3090ºF)
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MU1766 -1800 - maximum element temperature 1800ºC (3270º
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W-type Molybdenum Disilicide Heating Rods Application
W-type Molybdenum Disilicide Heating Rods 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.
