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What is u shape mosi2 heating element?
The u shape mosi2 heating element looks like the letter “U” in English, it is durable and reliable at high temperatures.
U Shape Mosi2 Heating Element
The U shaped mosi2 heating elements are most frequently used suspended with the bottom of the “U” down. The element consists of two cold ends (Lu) and a U-shaped hot section (Le).
The cold ends are twice the diameter of the hot section and are attached by a weld. The extremities of the cold ends are metallized with aluminum to provide a low-resistance contact surface to which the electrical connections are made with flat braided aluminum straps.
| Main Material | Molybdenum disilicide MoSi2 |
| Classification | Furnace heater |
| Key Selling Points | Long Service Life |
| Supply Ability | 5000 Piece / Pieces per Week for molybdenum disilicide heating element |
| Volume Density | 5.8~6.2g/cm³ |
| Bending Strength | 15-25kg/cm³ |
| Vickers Hardness | (HV)570kg/mm² |
| Porosity | 7.40% |
| Water absorption | 1.20% |
| Heating Elongation Rate | 4% |
| Packing | Cartoon box inside,Polyfoam filled, Wooden box outside |
| After-sales Service Provided | Overseas service center available |
U Shape Mosi2 Heating Element
These mosi2 heating elements are available in two grades: 1700 for element temperatures up to 1700 ℃ and 1800 for element temperatures up to 1850 ℃.
Standard specification
Two-Shank Elements
Manufactured to industry established diameters and resistance values in the following diameters: 3/6, 4/9, 6/12, 9/18 and 12/24.
Mosi2 heating element length:Lu length from 150 to 1000mm, Le length from 150 to 1500mm, customized is available.
Mosi2 heating element operation temperature: From 500C to 1750 ℃. Max temperature can up to 1900 ℃
Mosi2 heating element rod shape: U type; W type; straight type; L type.
Reference data for U shape mosi2 heating element
| Diameter(mm) φd(hot zone)/ φc (cold zone) | shape | length(mm) Le(hotzone)/Lu(cold zone) | a(mm) | g(mm) | f(mm) | h(mm) | n(mm) | ||
| Standard | Minimum | Standard | Minimum | ||||||
| 3/6 | U shape,L shape,W shape or customized | customized | 25 | 12 | 15 | 30 | 10 | 40 | 35 |
| 4/9 | U shape,L shape,W shape or customized | customized | 25 | 15 | 20 | 30 | 10 | 50 | 45 |
| 6/12 | U shape,L shape,W shape or customized | customize | 50 | 25 | 25 | 45 | 15 | 90 | 70 |
| 9/18 | U shape,L shape,W shape or customized | customized | 60 | 35 | 32 | 75 | 20 | 135 | 110 |
| 12/24 | U shape,L shape,W shape or customized | customized | 80 | 50 | 40 | 100 | 35 | ||
The installation of U shape mosi2 heating element
Two-shank elements with straight terminals are defined by
Element grade 1700 Grade, 1800 Grade,1850 Grade, 1900 Grade or Super pure Type
Heating zone diameter “d”, mm
Terminal diameter “c”, mm
Terminal length “Lu”, mm
Heating zone length “Le”, mm
Center distance between shanks “a”, mm
U Shape Mosi2 Heating Element And Accessories
Example: 1800 Grade,9/18, Lu = 320 mm
Sizes Available
Le = 510 mm
A=50mm
As shown below：
U Shape Mosi2 Heating Element Drawing
Resistance coefficient of mosi2 heating element
| Element temperature (℃) | Type 1700 resistivity (Ω·mm2/m) | Type 1800 resistivity (Ω·mm2/m) |
| 20 | 0.306 | 0.286 |
| 100 | 0.448 | 0.398 |
| 200 | 0.622 | 0.550 |
| 300 | 0.816 | 0.724 |
| 400 | 1.020 | 0.907 |
| 500 | 1.224 | 1.102 |
| 600 | 1.418 | 1.306 |
| 700 | 1.632 | 1.509 |
| 800 | 1.846 | 1.714 |
| 900 | 2.071 | 1.918 |
| 1000 | 2.285 | 2.142 |
| 1100 | 2.499 | 2.366 |
| 1200 | 2.734 | 2.601 |
| 1300 | 2.968 | 2.836 |
| 1400 | 3.223 | 3.050 |
| 1500 | 3.488 | 3.315 |
| 1600 | 3.743 | 3.570 |
| 1700 | 4.029 | 3.805 |
| 1800 | 4.316 | 4.060 |
The assembly of U shape mosi2 heating element
Transition section (g) should be inserted inside the furnace, to avoid the case that heat can not emit and resulting in damage of the transition section.
2. When installing, it is necessary to keep certain distance between the U shape mosi2 heating element and furnace bottom (h).
3. Make sure a reasonable distance between the U shape mosi2 heating element and furnace wall.
4. The suggest surface load of 1700 type U shape mosi2 heating element and furnace wall under 1300 C furnace temperature is below 13. 5w/cm3. The suggest surface load of 1800 type U shape mosi2 heating element under 1600℃ furnace temperature is below 11. 5w/cm2. And the suggest surface load of 1850 type products under 1720 C furnace temperature is below 12 w/cm2.
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