Product Description
1800 U Shape 4/9 Electric furnace lab industry factory low price resistance long use life high quality heater Molybdenum Disilicide Rod Mosi2 Heating Element
Silicon molybdenum rod resistive electric heating element is a high temperature resistant and oxidation resistant resistance heating element made based on molybdenum disilicide. When used in a high-temperature oxidizing atmosphere, like other Si based high-temperature resistant materials, the surface of MoSi2 quickly forms a bright and dense quartz (SiO2) glass film under high temperature and oxygen atmosphere, which can protect the inner layer of the silicon molybdenum rod from further oxidation. Therefore, silicon molybdenum rod components have unique high-temperature oxidation resistance.
Under an oxidizing atmosphere and at a maximum operating temperature of approximately 1700 ºC, the resistivity of MoSi2 increases rapidly with increasing temperature. Under normal circumstances, the resistance of the component does not change with the length of use, so new and old silicon molybdenum rod electric heating elements can be mixed for use.
Product Parameters
1800 U Shape 4/9 Electric furnace lab industry factory low price resistance long use life high quality heater Molybdenum Disilicide Rod Mosi2 Heating Element
Molybdenum disilicide(MoSi2) heating element/heater standard size
M1700 type (D1/D2): dia3/6, dia4/6, dia5/9, dia5/10, dia4/9, dia6/12, dia9/18, dia12/24
M1800 type (D1/D2): dia3/6, dia4/6, dia5/9, dia5/10, dia4/9, dia6/12, dia9/18, dia12/24
M1900 type (D1/D2): dia3/6, dia4/6, dia5/9, dia5/10, dia4/9, dia6/12, dia9/18, dia12/24
Type: I, U, W, and U-right angle shapes, etc
And we can produce according to your requests.
When you place order, plz inform us below data:
Material Grade: 1700C / 1800C / 1900C
Diameter: D1/D2, mm
Hot zone length: Le, mm
Cold zone length: Lu, mm
Shank Space: A, mm
Detailed Photos
1800 U Shape 4/9 Electric furnace lab industry factory low price resistance long use life high quality heater Molybdenum Disilicide Rod Mosi2 Heating Element
| 2. Physics Characters: |
| Volume Density |
Bending Strength |
Vickers Hardness |
Porosity |
Water absorption |
Heating Elongation Rate |
| 5.5g/cm3 |
15-25 kg/cm3 |
(HV)570kg/mm2 |
7.40% |
1.20% |
4% |
3. 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.
4. The Using Temperature Under the Different Atmospheres
Atmosphere |
The Maximum Using Temperature of Elements |
1700 |
1800 |
No2 ,Co2 ,O2 ,Air |
1700°C |
1800°C |
He ,Ar ,Ne |
1650°C |
1750°C |
So2 |
1600°C |
1700°C |
CO ,H2 |
1500°C |
1600°C |
Wet H2 |
1400°C |
1500°C |
Dry H2 |
1350°C |
1450°C |
Installation Instructions
1800 U Shape 4/9 Electric furnace lab industry factory low price resistance long use life high quality heater Molybdenum Disilicide Rod Mosi2 Heating Element
The radiation coefficient of silicon molybdenum rods is slightly softened at high temperatures (above 1500 degrees), and hard and brittle at low temperatures. In order to avoid stress during temperature changes and facilitate the thermal expansion and contraction of components, it is best to use a free vertical hanging installation method. The dismantling and replacement of lifting components is also relatively convenient, without waiting for the furnace to cool down, and can be heat exchanged.
When hanging silicon molybdenum rods, the following precautions must be taken:
1. The furnace lining material should use corundum bricks, and the mass fraction of Fe2O3 should be less than 1%, because it interacts with the protective film to form a molten silicate, thereby accelerating the damage of the components.
2. The hot furnace gas leaked from the cold end not only increases the heat loss of the furnace, but also may burn out the conductive tape clamps and lead clamps. Therefore, it is best to use asbestos clamps.
3. As silicon molybdenum rods are brittle materials with low bending strength and cannot withstand impact, protective measures should be taken during installation to prevent breakage. When connecting the conductive tape, the asbestos clamp (or ceramic clamp) must be installed first, and excessive force should not be applied when clamping.
4. Install the silicon molybdenum rod into the plug brick. In order to avoid the mechanical stress caused by loading and unloading movement, the plug brick shall be a separate brick made of foam corundum brick.
Our Advantages
1800 U Shape 4/9 Electric furnace lab industry factory low price resistance long use life high quality heater Molybdenum Disilicide Rod Mosi2 Heating Element
Delivery time: 7days after receipt of deposit.
Hot Bent New Process Mosi2 electric Heating Element, Mosi2 electric Heater for Laboratory Furnace, Vacuum Furnace
Package: Package: Synthetic wooden case padded with foams
We also received OEM service; the package can be designed according to your requirements.
Shipping: By vessel or by plane from any Chinese port, Samples can be delivered by International express.
6. Our Service:
1. Timely response,
Timely response to your inquiry, multiple choice recommendations based on your demand, quickly respond mails and provide solutions.
2. Sample evaluation
Sample and trial order is accepted for the quality evaluation.
3. Strict quality control
Arrange production on time and control quality strictly.
4. Shorter delivery time.
Book the earliest vessel or plane to guarantee the delivery time.
5. Professional Services
Provide all the detailed news and pictures from order to delivery;
Offer relative export documents and original certificate if needed;
Warm and considerable after-sale service
Hot Bent New Process Mosi2 electric Heating Element, Mosi2 electric Heater for Laboratory Furnace, Vacuum Furnace
Package: Synthetic wooden box padded with foams
We also received OEM service; the package can be designed according to your requirements.
Shipping: By vessel or by plane from any Chinese port, Samples can be delivered by International express.
Packaging & Shipping
Audited Supplier 
){kind=link}