Molybdenum News Center

Molybdenum Hot Components

Molybdenum has high purity, high temperature, low vapor pressure characteristics , so often used to manufacture high-temperature furnace heating elements and structural materials . Molybdenum and tungsten carbide in the production process , the most used way to produce molybdenum wire heating reduction furnace and sintering furnace , some ironwork continuous sintering molybdenum rod heated row also used for heating body , heating row molybdenum molybdenum rod hung on hooks both sides of the stove . Such furnaces are generally non -oxidizing atmosphere, reducing atmosphere , the decomposition of ammonia, hydrogen and molybdenum wire can be used to near the melting point , nitrogen can be used to 2000 ℃. When used above 1700 ℃ , the recrystallization temperature can be higher strength and better TZM alloy or molybdenum lanthanum alloy as heat . Molybdenum in molten quartz has a good ablation resistance , in the glass industry for melting electrodes energized , for every ton of glass molybdenum electrodes lost only 7.8 grams , the useful life of more than a year . Except for the electrode , the molybdenum is also used as a glass melting temperature structural materials , such as guide grooves , tubes , crucibles, flow ports, and smelting of rare earth stirring rod . Molybdenum generation platinum on glass fiber drawing furnace with favorable results , greatly reduce the production cost. Recently developed a nuclear fuel sintering furnace with molybdenum heating network with ф0.8mm molybdenum wire mesh woven into a three-phase heater temperature up to 1800-2000 ℃. In addition , molybdenum and its alloys also can be used for hot isostatic pressing of the oven rack , heat shield , sintering and coating material steam boat , SmCo magnets and sintered uranium dioxide plate , thermocouple protection tube and and so on.

 Molybdenum disilicide (MoSi2) is a very common application of heating element material with high temperature oxidation resistance , excellent corrosion resistance and high melting point and other characteristics. Antioxidant which is formed on the surface due to the heating of the glass film impermeable , so that from oxygen, nitrogen , carbon monoxide and sulfur dioxide destruction , in 1700-2000oK temperatures, molybdenum disilicide heating may work two, three years . However, poor mechanical properties of the application of molybdenum silicide , molybdenum silicide if SiC is added to form a composite material, this material will diffuse into the silicon carbide substrate of molybdenum disilicide , the generated containing molybdenum atom and a silicon atom of the double metal compound its high-temperature strength than the high molybdenum disilicide monomer 8 times , so prospects are so popular .

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