The Development Direction of Tungsten Industry in the World - Ⅰ

From an international point of view, the applications of tungsten in national economy are mainly as follows:

   (1) Tungsten processing materials

    Tungsten processing materials include wires, rods, plates and so on. The international development directions of tungsten processing materials are high technical content, particularly high specifications and specific shapes. Such as reliable anti-seismic and sag resistance tungsten wire, tungsten filaments used for special light bulbs, tungsten alloy wire used for electric image tubes, ultra-high precision tungsten narrowbands, high purity and ultra-high purity tungsten used for VLSI Sub microspheres. Currently, the largest tungsten products abroad amounted to 1.2 tons, while China is only 0.2 tons.

   (2) tungsten-based heavy alloy

    Tungsten-based heavy alloy is a class of tungsten – based group (85 to 99% amount of tungsten-containing), which adds Ni, Cu, Fe, Co, Mo, Cr and other elements in the alloy, known as tungsten heavy alloy or high-density tungsten alloy. Tungsten-based heavy alloy is widely used in the military industry and civilian industry, such as penetrators and cluster bombs in military industry, the anti-X-ray and G-ray shielding materials in medical industry, high-density tungsten alloy vibrator and electrode materials in civilian industry, etc. Tungsten-based heavy alloy consumption in developed countries accounts for about 10% of the total tungsten consumption, the United States is the world's largest producer and consumer of tungsten based heavy alloy, its production has reached more than 1,000 tons per year.

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