Molybdenum Is Used As A High-temperature Component

Molybdenum's high purity, high temperature resistance, low vapor pressure and other characteristics make it often used in the manufacture of high-temperature furnace heaters and structural materials. In the production of tungsten, molybdenum and tungsten carbide, most of them use molybdenum wire heating to make reduction and sintering furnaces, and some continuous sintering of iron products also use molybdenum rods as heaters, which are hung on both sides of the furnace by molybdenum hooks. This kind of furnace is generally for the reducing atmosphere or non-oxidizing atmosphere, in the hydrogen and decomposition of ammonia in the molybdenum wire can be used to close to the melting point, nitrogen can be used up to 2000 ℃. Higher than 1700 ℃ use, can be used for higher recrystallization temperature, better strength of the TZM alloy or molybdenum lanthanum alloy for the heat generator.

Molybdenum in the melted quartz has a very good resistance to ablation, used in the glass industry as a fusion electrode for the energized electrode, the production of molybdenum electrodes per ton of glass is only a loss of 7.8 grams, the service life can be up to more than a year. In addition to electrodes, molybdenum is also used as a high-temperature glass melting structural materials, such as guide grooves, tubes, crucibles, flow mouth and rare earth smelting stirring rod. Molybdenum instead of platinum in the glass fiber drawing furnace on the use of good results, greatly reducing production costs.Recently developed nuclear fuel sintering furnace using molybdenum mesh heating, with ф0.8mm molybdenum wire woven into a three-phase mesh heater, the working temperature up to 1800-2000 ℃. In addition, molybdenum and its alloys can also be used for hot isostatic pressure of the furnace frame, insulation screen, sintering and steam coating of the material boat, SmCo magnets and uranium dioxide sintering pad, thermocouples and their protective casing and so on.