High Quality Molybdenum Disilicide Rod, U Type Mosi2 Heating Element

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 1800C during oxidizing  atmosphere. According to your request, our company can produce the products of Pole, "U", "W" and "U"-right angle shapes, etc.
   MoSi2 heating element can usually make use of furnace temperature from 1300C to 1800C. It is extensively used in the industries of metallurgy, glass, ceramic refractory, crystal electronic device, industrial furnace manufacture, etc.. It is an essential ideal element when the products are sintering in the high temperature.
 
 
Standard sizes:
M1700 type (d/c): dia3/6, dia4/9, dia6/12, dia9/18, dia12/24
M1800 type (d/c): dia3/6, dia4/9, dia6/12, dia9/18, dia12/24
 
 
 
1. Physics Characters 
 2. Chemistry Character 
    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. During the oxidizing process, the SiO2 protecting film is formed again when the element continues to be used. The MoSi2 heating element must not be used in the temperature between 400C and 700C for a long time, otherwise the element will be cremated under the strong oxidizing function in the low temperature. 
Advantage
1. Applications
Laboratory furnace  Sintering furnace  Glass melting furnace  Heat treatment
Industrial furnace   Glass melting furnace   Testing equipment Metal sintering
 
2. High Productivity
▪MOSi2 can be used for high surface loadings
▪Arranged in groups to give wall loadings in excess of 100kW/m²
▪Energy Saving
▪MOSi2 enable user to startup only when needed
3. Flexibility
▪Wide range of temperature range 500ºC to 1800ºC.
▪Able to expose in many protective atmosphere used in practice
4. Reliable Production& Low Maintenance
▪MOSi2 can withstand oxidation at very high temperature
▪Unmatched durability
▪MOSi2 does not age, thus enable connection between existing and new elements
Electric Characteristics
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.

According to the structure, the temperature and atmosphere in the correct choice of components surface load is the key element to the highest life, based on the thermal radiation components uncrossed circumstance temperature, temperature and surface load components, the shaded part for common surface load - - - - - the temperature range.

Installation and Advice
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 chuck H. 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.
3). wire clip
The wire connection clamp connecting MoSi2 element is made of aluminum woven wire or multilayer aluninum foil. The steel plate outside it only acts as a clamp and isn't used for electric conduction. For&6/12 element, single rowing wire is used ,and for &9/18element,double-rowing wire is used ,the end of the lead wire should be a little larger than the linear distance between the element and bus.
The brittleness of MoSi2 heating element is relative more under the usual temperature; it also has plasticity under the high temperature. So you had better hang and erect vertically the "U"-shape element. If you need to erect it horizontally, please choose a support of high-temperature insulating materials. The cone-part of the element must extend inside the furnace. At first the fixture of MoSi2 power connector can't be screwed too tightly. When temperature of the element is going up, please twist it tightly again, so the element is not easily broken.