Tungsten applicatin - other tungsten materials Ⅰ

The ammonium metatungstate and heteropoly tungstic acid are mainly used as a catalyst in the petrochemical and organic synthesis. 

Sodium tungstate is used for the production of certain types of paints and pigments, in addition also be used for metal tungsten, tungstic acid and tungstate manufacture and dyes, pigments, inks, and electroplating. Tungstic acid is mordant dyes, in the textile industry, in the chemical industry is used as a catalyst for preparation of high-octane gasoline. Tungsten disulfide in organic synthesis, such as in the preparation of synthetic gasoline was used as a solid lubricant and a catalyst.

Based on the superiority of the tungsten and its compounds, tungsten occupies an important position in the field of national defense. In the military industry, the pressure – resistant and heating – resisting parts which would contact with gunpowder, like the guns, cannons, tanks and other weapons and equipments, are produced by tungsten steel. The aviation jet engine's combustion chamber, fuel nozzles, turbine guide vane, turbine rotor blades are all made of tungsten alloy; The skin materials of rockets, missiles and satellites are tungsten-containing high-temperature resistance alloy; penetrators heads made of high-density tungsten alloy, can improve the performance of the shells; gyroscopes are the heart of aircraft, naval vessels and rocket's navigation and control system, gyro inertial elements made of high-density tungsten alloy, can improve the stability and control precision of the instruments, such as the aircraft's ailerons, rudder and horizontal tail, etc. are required counterweight to balance. In some aircraft, hundreds of kilograms high density tungsten alloy is used for counterweight; tungsten alloy material has a very important significance to the development of modern aerospace, aviation and maritime industry.

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