1800 Grade U W Special type MoSi2 Molybdenum Heating Elements

1800 Grade U W Special type  MoSi2 Molybdenum Heating Elements 

 MoSi2 heaters are resistive heating elements based on molybdenum disilicide. The molybdenum disilicide heating elements prevents the inner core from oxidation by forming a compact quartz glass coating at the surface under high temperature. The temperature generated by MoSi2 goes as high as 1700~1900°C in oxidation atmosphere. 

They can be widely used in such applications as sintering and heat treatment on electronic ceramics, structural ceramics, magnetic materials, flameproof materials, glass, metallurgy, etc. The resistance of the heating elements is independent on their mission time. The MoSi2 heating elements hardly age, which allows the mixed use of new and old packages.

We make U shape, W shape, Straight shape (X shape) and bend shape (L shape), etc. The dimension ranges from 3/6, 4/9, 5/10, 6/10, 6/12, 6/14, 7/14, 8/16, 9/18 to 12/24mm. Special request from customers is welcome.

2.Order samples:

d=6mm, c=12mm, Le=200mm, Lu=180mm, a=30mm

Please specify as: dia6/12x200x180x30mm (dia d/cxLexLuxa mm)

d = the diameter of hot zone

c = the diameter of cold zone

Le = the length of hot zone

Lu = the length of cold zone

3. Physical and Chemical Properties of Molybdenum Disilicide Mosi2 Heating Element

1) Physical property

2)Recommend Surface load

3)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.

4.The max temperature of elements  in different atmosphere 

5.Notice to Furnace Operation:

To avoid high current surges may cause damage to MoSi2 heating elements, the recommend starting procedure as following:

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6. Installation of molybdenum disilicide(mosi2) heating elements

1) Vertically hanging

  Under normal temperature, MoSi2 element is very brittleness, while under high temperature it is plasticity. So, the better way for installation if the U Shape element is to hang it vertically, to the furnace top through the support clamping chucks. The aim of such way is to avoid putting the mechanical stress directly to the element heat-generating end, or the element will easily be broken.

2) Support clamp

  Support clamp are applied to 9/18 and 6/12 two kinds of elements respectively. The support clamp supports the whole weight of the element and the position of the element is also determined by it .therefore, it must be installed carefully to assure that the element it vertically hung. In order to prevent the element from being over heated locally, the taper part of the element lower end must put into the furnace chamber.

We have our own factory which has more than 15years experience in producing and exporting alumina products,

we also have good business relations with some other factories.

Our goods’quality is high and price is reasonable and delivery is fast.

2.Can you produce as our drawing?

Yes,we have skilled technical engineer who can make products according to your photos or drawings.

3.After-Sale service:

1) 24 hours service for customers.

2) quality issue, we accept reworking if quality is not reach your requirements.

3) sample available for free

4) CE service acceptable. welcome your artwork.