Molybdenum application is mainly used in iron and steel industry, most of them are industrial molybdenum oxide after the briquetting directly for steel or cast iron, a small number of melting into molybdenum iron molybdenum foils before used for steelmaking. The molybdenum content in low alloy steel is not more than 1%, but the consumption of molybdenum to about 50% of total consumption. Molybdenum is added to stainless steel, can improve the corrosion resistance of steel. Add molybdenum in cast iron, can improve the strength and wear resistance of iron. Containing 18% molybdenum nickel-based super alloy with high melting point, small features such as low density and thermal expansion coefficient, high temperature parts used in the manufacture of aviation and space flight. Metal molybdenum in electron tubes, electronic components such as transistors and rectifier is widely used. Molybdenum oxide and molybdate is catalysts in chemical and petroleum industry. Molybdenum disulfide is a kind of important lubricant, used in the aerospace and mechanical industry department. Molybdenum is one of the essential trace minerals in the plants, used as trace element fertilizer in agriculture.
Pure molybdenum wire used in high temperature furnace and electric spark machining and the cutting; Molybdenum sheets used to manufacture radio equipment and X-ray equipment; Molybdenum high-temperature molybdenum crucible erosion, mainly for the artillery bore, rocket nozzle, light bulbs made of tungsten wire stents. Add molybdenum alloy steel can improve the elastic limit, corrosion resistance, and maintain permanent magnetism, molybdenum is needed for plant growth and development in one of the seven micronutrients, without it, plants could not survive. Animal and fish and plants, also need molybdenum.
Molybdenum iron and steel industry is the main consumption areas, industrial developed countries more than 80% of molybdenum as steel add elements, only about 20% of the molybdenum is used for making metal molybdenum, super alloy and special alloy, chemical products, such as consumption in the petroleum chemical industry, light industry, electronics and some high-tech fields.
Molybdenum and molybdenum alloy rods (article), wire, plate, belt, foil and heterotypic products widely used in metallurgy, machinery manufacturing, electronics, lighting and some high-tech fields. Support, core axle wire, such as lighting filament reflector screen; Electronic industrial anode, grid, auxiliary electrode, the gasket; Vacuum plating, sputtering of containers, boat, heater; High temperature furnace with a heating element, electrode, insulation screen; Surface treatment used for surfacing welding, plating; Measuring temperature with thermocouple and cases; Application of molybdenum in recent 10 years and obtained the further expansion, such as thermal spraying molybdenum powder and molybdenum wire has greatly increased the car on the service life of the piston ring and gears; In the glass and refractory fiber material industry, with molybdenum can replace platinum crucible and electrode, and made great effect. The emergence of high temperature molybdenum, molybdenum in halogen mercury lamp and the scope of the application of the vacuum furnace is more and more big. In the die casting industry, molybdenum and its alloys can be used as non-ferrous and ferrous metal die-casting mould material. Refractory molybdenum base ceramic tube is suitable for continuous measurement of bof steelmaking process casing, hot extrusion die; Molybdenum alloy head is widely used for seamless steel tubes and stainless steel pipe, significantly improve productivity and product quality, reduce the cost. Formed by molybdenum and tungsten alloy, the (steam) liquid zinc and zinc corrosion resistance performance is particularly good, has been widely used Mo - 30 w alloy production of vertical shaft and temperature measuring casing, greatly reduce the shutdown maintenance, improve working conditions. MoSi 2 very good oxidation resistance, use it can be used in the atmospheric temperature of 1700 ℃ heating element, as a rare earth smelting and some control single crystal with crucible, instead of the expensive platinum crucible.
The purpose of the molybdenum application in the chemical industry is more and more conspicuous, especially molybdenum compounds application in the chemical industry rapid development. In recent years, though the unfavorable situation of molybdenum in the, application of molybdenum compounds is still growing, and towards multi-polarization direction. Molybdenum and molybdenum alloys in many reaction medium with high stability, and it is in the light industry such as chemical industry, oil refining and glass is widely used in corrosion resistant material, such as chemical equipment lining, parts, valves, steam pipe, heat exchanger, reboiler, etc. At present, molybdenum and molybdenum alloys have been used for preparing, such as acid, alkali, salt, melting glass and some work of all sorts of equipment components in the gas medium. Such as hot concentrated sulfuric acid system of large valves, heat exchangers, etc. Allegedly in 320 ℃ and higher pressure condition of chlorination reaction equipment molybdenum and molybdenum alloy may be adopted. Molybdenum compounds application basically has the following several aspects: the catalyst and catalytic activator, lubricant and lubricant additives, pigment, dyestuff, paint and ink, water quality and medium corrosion inhibitors, composite ion exchanger, battery, flame retardant, smoke elimination agent and getter, trace element additive, molybdenum compound fertilizer, superconducting materials, ceramic materials, polymer filler, energy storage material, gasoline additives, glass material, etc. Some people predicted that the next 10 years, new application development of molybdenum may mainly displays in the fine chemical industry, is likely to increase the consumption of molybdenum a breakthrough.