Tungsten, molybdenum, tantalum, niobium metal is an important new material used in high-tech industry at home and abroad, its characteristics: high temperature resistance, thermal conductivity, high strength and toughness at high temperature, heat insulation, tensile wear resistance, applied in aerospace, military, photoelectric, solar energy, vacuum heat treatment, electric heating, electronic crystals and other high-tech industries.
With the development and continuation of science and technology, a single tungsten, molybdenum, tantalum, niobium metal products can not meet the needs of material quality and energy applications, rare metals are developing to alloying, forming new metal alloy new materials. Tungsten, molybdenum, tantalum, niobium alloy is a new alloy material formed by the original single metal as the matrix, after combination and addition of trace elements processing technology.
Among them, tungsten-molybdenum alloy, tungsten-rhenium alloy, tungsten-thorium alloy, tungsten-cerium alloy, lanthanum tungsten alloy is used in aerospace, aircraft, nuclear power and other industries, and high-gravity alloy is used in armor-piercing ammunition and military industry; Tungsten-cerium alloy, lanthanum tungsten alloy for lighting, electric light source; Molybdenum titanium zirconium (TZM) alloy, molybdenum titanium nickel alloy will gradually replace the pure molybdenum; Molybdenum niobium alloy (ITO) alloy is used for LCD display touch screen and so on. At present, only Japan and Austria have mature production processes in the world, and their products occupy the international market. The domestic smart metals used in aerospace, navigation, electronic display and other fields can only rely on imports.
