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HeatingRefrigeration Temperature ControlHeating ElementMosi2 Heating ElementMolybdenum Heating Element
Henan Yexin Technology Co., Ltd.
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Product DescriptionProduct DescriptionSilicon molybdenum rod resistive heating element is a high temperature resistant and oxidation resistant resistance heating element made of molybdenum disilicide. When used in a high temperature oxidizing atmosphere, like other Si-based high temperature resistant materials, the surface of MoSi2 will quickly generate 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, the silicon molybdenum rod element has unique high temperature oxidation resistance.In an oxidizing atmosphere, the maximum operating temperature is about 1700℃, and the resistivity of MoSi2 increases rapidly with the increase of temperature. Under normal circumstances, the resistance of the element does not change with the length of use time, so new and old silicon molybdenum rod electric heating elements can be mixed.According to the structure, working atmosphere and temperature of the heating equipment, the correct selection of the surface load of the electric heating element is the key to the service life of the silicon molybdenum rod electric heating element.Product ApplicationSilicon molybdenum rod electric heating element products are widely used in the research and production of metallurgy, steelmaking, glass, ceramics, refractory materials, crystals, electronic components, semiconductor materials, and other fields, especially for the production of high-performance precision ceramics, high-grade artificial crystals, precision structural metal ceramics, glass fibers, optical fibers and high-grade alloy steel.Silicon carbon rods are non-metallic electric heating elements. They are made of high-purity green hexagonal silicon carbide as the main raw material and are made by high-temperature recrystallization at 2200℃. The normal use temperature can reach 1450℃. Under reasonable use conditions, they can be used continuously for more than 2000 hours in the air without any protective atmosphere. Suitable for various electric furnaces and kilns.Silicon molybdenum rods have high oxidation resistance. In high-temperature atmosphere, a dense quartz SIO2 protective layer is generated on the surface of the original to prevent MOSI2 from continuing to oxidize. When the component temperature is greater than 1700 degrees and the SIO2 protective layer with a melting point of 1710 degrees melts, due to the effect of surface tension, SIO2 melts into droplets and loses its protective effect. ,If it is matched with an automated power supply system, it can not only obtain an accurate constant temperature, but also automatically adjust the temperature according to the curve according to the actual needs of the production process. It is now widely used in defense, machinery, metallurgy, light chemical, ceramics, semiconductors, analysis and testing, scientific research and other fields, and has become an electric heating element for various electric furnaces and kilns. Tunnel kilns, roller kilns, glass kilns, vacuum furnaces, muffle furnaces, smelting furnaces and various heating equipment use silicon carbon rods for heating, which is convenient, safe and reliable. It is widely used in a variety of high-temperature electric furnaces and kilns in industries such as electronics, magnetic materials, powder metallurgy, ceramics, glass, metallurgy and machinery. And its electric heating equipment.ParameterBulk densityBending strengthMaximum operating temperatureSurface loadWater absorptionThermal elongation5.6-5.8g/cm3≥15kg/mm21780℃5-15w/cm2≤0.2%4%
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