Molybdenum Disilicide MoSi2 Heater with long service life

FOB Price 25 - 985 USD / pc

MOQ	5 pc
Port	QingDao
Packaging	standard wooden box
Lead Time	5-10 working days

Product Details

HT molybdenum disilicide heating elements Type 1700, 1800 and 1900 elements are high-tech products researched and developed by experts from China and abroad.

MoSi2 Heater Molybdenum Disilicide Heating Elements can quickly form a thin and adhesive anti-oxidizing layer of quartz glass (SiO2), under the high temperature oxidizing condition. If the protective layer was damaged, the element can reform a new one, so MoSi2 Heater Molybdenum Disilicide Heating Elements have a very good anti-oxidation properties, it also means that the heating element can be used on operation for a much longer time than the traditional one.

The resistivity of the MoSi2 Heater Molybdenum Disilicide Heating Elements is not changing with the time, so a new one can be installed without effecting the old one. This can result of the huge saving in furnace maintenance fee sand time as well, increase the working efficiency. This is the key point of Heater Molybdenum Disilicide MoSi2 Heating Elements being a better material and being widely used.

Any sized elements can be made according to your requirement.

We can make U, W, UL, WL, and ROD type elements

The standard diameters are: 3/6 mm, 4/9 mm, 9/18mm, 12/24mm.

Technical Data MoSi2 Heater Molybdenum Disilicide Heating Elements

Density	Bending Strength	Hardness	Apparent Porosity	Water Absorption	Elongation	Fracture Toughness	Compressive Strength
5.8g/cm3	350Mpa	12.0Gpa	±2%	0	4%	4.5Mpa.m1/2	650Mpa

Recommend Surface load MoSi2 Heater Molybdenum Disilicide Heating Elements

Furnace Temp (C )	1400	1500	1600	1650	1700
Surface load of hot zone(w/cm2)	<18	<15	<12	<10	<8

The influence of operation temperature on the heater surface in a different atmosphere

Atmosphere	The Maximum Using Temperature of Element
Atmosphere	1700 Grade	1800 Grade	1900 Grade
NO2,CO2,O2,Air	1700°C	1800°C	1850°C
He,Ar,Ne	1650°C	1750°C	1800°C
SO2	1600°C	1700°C	1800°C
CO,H2	1500°C	1600°C	1700°C
WetH2	1400°C	1500°C	1650°C
DryH2	1350°C	1450°C	1600°C

MoSi2 Heater Molybdenum Disilicide Heating Elements 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 Heater Molybdenum Disilicide Heating Elements 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.

The brittleness of MoSi2 Heater Molybdenum Disilicide Heating Elements 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 cant be screwed too tightly. When temperature of the element is going up, please twist it tightly again, so the element is not easily broken.

Our suggestion: please choose the specialize power connector provided by our company) The furnace top must be a good function of heat-preservation. In general, the temperature of furnace top cant be over 300C. The voltage should be low 0.1 between the power connector and the element. In order to avoid radiating heat to pass the connector, the distance is not less than 50mm between the low end of connector and the upside of the ceramic brick. The Dia.6 element cant be used of 170A for a long time. The Dia.9 element cant be used of 300A for a long time.

Notice to Furnace Operation:

To avoid high current surges which may cause damage to MoSi2 Heater Molybdenum Disilicide Heating Elements , the recommend starting procedure as following:

Small Furnace (Power 100KW)