Molybdenum Disilicide Heating Element Characteristics
Molybdenum disilicide heating element (MoSi2 heating element) characteristics are as following: high temperature oxidation resistance, corrosion resistance, quickly heating, long life, small high temperature deformation, easy installation and maintenance and so on. MoSi2 heating element is a kind of resistance heating element and usually uses molybdenum disilicide as raw material. Used in high temperature oxidizing atmosphere, the surface will produce bright dense quartz (SiO2) glass membrane, which can protect material from oxidation, due to its unique high temperature oxidation resistance, so it is widely used in high temperature furnace. In oxidizing atmosphere, the maximum operation temperature is 1800 ℃ and the resistance of element will increase rapidly with temperature increasing and when the temperature is stable, the resistance also stable. Besides, the operation time has slight effect on the resistance, therefore, old and new molybdenum disilicide heating elements can be mixed used.
Commonly used high temperature heat elements are molybdenum disilicide, silicon carbide rod, lanthanum chromite. Molybdenum disilicide having good oxidation resistance is widely used in electronic, magnetic materials, powder metallurgy, ceramics, glass, ceramics, semiconductor, laboratory analysis, scientific research and other high-temperature field, often made into electric heating elements used in various high-temperature furnaces and heating equipment. Silicon carbide rod has good chemical stability and strong acid resistance. At the high temperature alkaline substance has erosion effect on it. Lanthanum chromite heating element uses lanthanum chromite as main component, usually used in high temperature oxidizing atmosphere furnace. It as resistance heating element used in high temperature has low energy consumption and can be precisely controlled temperature.
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