Molybdenum Disilicide Common Temperature
Molybdenum disilicide common temperature is 800-1700 ℃ and the highest temperature is 1800 ℃. Silicon molybdenum rods are widely used in metallurgy, light chemistry, ceramics, glass, semiconductor, laboratory analysis, electronic, magnetic materials, powder metallurgy, machinery, plant production and scientific experiments and other high-temperature field, often as heating element used in many high-temperature furnace, electric kiln, tunnel kiln, roller kiln, glass furnace, vacuum furnace, muffle furnace, smelting furnace and electric heating devices.
Molybdenum disilicide resistive heating elements have many excellent properties, including high temperature resistance, oxidation resistance and so on. When used in high temperature oxidizing atmosphere, the surface of MoSi2 heating element will produce bright dense quartz (SiO2) glass membrane and can protect heating element form oxidation. Due to Its unique high-temperature oxidation resistance, it is widely used in high temperature field. In an oxidizing atmosphere, the highest operation temperature is 1800 ℃, but long term used in high temperature the surface will appear bubbling phenomenon, reducing its service life, so it is commonly used temperature is 800-1700 ℃.
The operation temperatures of silicon molybdenum rod are different with working furnace different and thermal insulation properties of furnace. Under ordinary condition the maximum temperature is 1750℃. In the atmosphere furnace the operation temperatures should to be lower. When the high-temperature furnace rated temperature is 1800 ℃ and the furnace atmosphere is air, commonly used temperature is 1700 ℃. When the high temperature furnace rated temperature is 1700 ℃ and the furnace atmosphere is nitrogen, commonly used temperature is 1600 ℃. When the high temperature furnace rated temperature is 1700 ℃ and furnace atmosphere is hydrogen, commonly used temperature is 1100 ℃-1450 ℃.
In addition, silicon molybdenum rod heating elements is not suitable for long-term used in the temperature range of 400 ℃ to 700 ℃, because under low temperature condition the element will cause low temperature oxidation.
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