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silicon molybdenum rod Introduction£º
The resistance-resistance electric heating element is a kind of resistance heating element with high temperature resistance and oxidation resistance based on molybdenum disilicate.When used in high temperature oxidizing atmosphere, a bright and dense silica (SiO2) glass film is generated on the surface, which can protect the inner layer of si-mo rod from oxidation. Therefore, si-mo rod element has unique high temperature oxidation resistance.
In the oxidizing atmosphere and the operating temperature is 1800℃, the resistance of the silicon-molybdenum rod heating element increases rapidly with the temperature rising, and the resistance value is stable when the temperature is constant.Under normal circumstances, the resistance of the element does not change with the length of service, so the old and new silicon-molybdenum rod heating elements can be mixed.
According to the structure, working atmosphere and temperature of the heating equipment, it is the key to choose the surface load of the heating element correctly.
Chemical symbol of silicon molybdenum rod:
Molecular formula: MoSi2
The physical and chemical properties
Density: 5.6g ~ 5.8g/cm3
Bending strength: 20***(20℃)
Vickers hardness (HV) : 570kg/mm2
Porosity: 0.5 ~ 2.0%
Water absorption: 0.5%
Thermal elongation: 4%
Radiation coefficient: 0.7 ~ 0.8(800 ~ 2000℃)
Silicon molybdenum rod product application:
Silicon molybdenum rods electric heating element products are widely used in metallurgy, steel, glass, ceramics, refractory material, crystal, electronic components, semiconductor materials research, production and manufacturing, and other fields, especially for high performance precision ceramics, high-grade artificial crystal, the structure of the precision metal ceramic, glass fiber, optical fiber and high alloy steel production.
Instructions for silicon and molybdenum rod customization:
Please advise the parameters:
Total OL length
Diameter OD length
The hot end is HZ
Cold end CZ length
Introdu |
| Company: |
Zhengzhou Mingxin electric heating materials Co., Ltd
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| Contact: |
Mr. fire fire |
| Address: |
sanlizhuang high tech Industrial Zone, Dajindian, Dengfeng City, Henan Province |
| Postcode: |
450000 |
| Tel: |
+86 13253518809 |
| Fax: |
86 0371 62736637 |
| E-mail: |
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