Description
CE
proved MoSi2 heating
elements
MoSi2 heating elementis 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 ***0C
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 ***0C to ***0C. 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:
M***0 type (d/c): dia3/6, dia4/9, dia6/*2, dia9/*8,
dia*2/*4
M***0 type (d/c): dia3/6, dia4/9, dia6/*2, dia9/*8,
dia*2/*4
MoSi2 heating elements physics and
chemistry characters:
1.
Physics Characters
| Volume
Density |
Bending
Strength |
Vickers
Hardness |
Porosity |
Water
absorption |
Heating Elongation
Rate |
| 5.5
g/cm3 |
****5
kg/cm3 |
(HV)**0kg/mm2 |
7.4% |
1.2% |
4% |
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 **0C and **0C for a long time, otherwise
the element will be cremated under the strong oxidizing function in
the low temperature.
MoSi2 Heating
Element's installation:
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 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 **0C. 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 *0mm between the low end of connector and the upside of
the ceramic brick. The Dia.6 element cant be used of **0A for a
long time. The Dia.9 element cant be used of **0A for a long
time.)
Notice to Furnace Operation:
To avoid high current surges which
may cause damage to MoSi2 heating elements, the recommend starting
procedure as following:
|
Small Furnace (Power **0KW)
|
Big Furnace (Power **0KW***0KW)
|
|
Furnace Temperature
.C
|
Voltage
|
Furnace Temperature .C
|
Voltage
|
|
*****0
|
1/3
|
*****0
|
1/3
|
|
******0
|
2/3
|
******0
|
2/3
|
|
***-Working Temperature
|
Full
|
***-working Temperature
|
Full
|
|
Note: Shifting gear must be done quickly, otherwise high current surges may cause damage.
|
