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Tungsten Characteristic
Jul 27, 2017

Tungsten is a nonferrous metal. Tungsten Usually people according to the color and nature of metal metal into two categories: ferrous metals and non-ferrous metals. Black metal mainly refers to iron, manganese, Tungsten chromium and its alloys, such as steel, pig iron, ferroalloy, Tungsten cast iron and so on. Ferrous metals other than metal are called non-ferrous metals. Tungsten belongs to the category of nonferrous metals. The strength and hardness of non-ferrous alloys are generally higher than pure metal, the resistance is larger than pure metal, the resistance temperature coefficient is small, Tungsten has good comprehensive mechanical performance. Thus, Tungsten as a nonferrous metal, tungsten has a very high strength and hardness. Because of this feature, with a high hardness, Tungsten wear resistance of tungsten carbide is a large-scale application of cutting tools, mining tools.

Tungsten is a strategic metal. Is an important part of contemporary high-tech new materials, Tungsten a series of electronic optical materials, special alloys, new functional materials and organometallic compounds are required to use a unique performance of tungsten. Although the amount is not big, Tungsten but crucial, lack it can not. And thus widely used in contemporary communications technology, electronic computers, aerospace development, medicine and health, photographic materials, optoelectronic materials, Tungsten energy materials and catalyst materials.

The melting point of tungsten is the highest of all metal elements, the density (19.3 g / cm³) is very high, close to gold, tungsten hardness is also high, Tungsten such as tungsten carbide hardness and diamond close. In addition, Tungsten tungsten also has good electrical conductivity and thermal conductivity, a small coefficient of expansion and other characteristics, which is widely used in alloys, electronics, Tungsten chemicals and other fields, of which tungsten carbide is the largest consumer of tungsten.

Tungsten hardness is high, tungsten density close to gold, which can improve the strength of steel, hardness and wear resistance, is an important alloying elements, Tungsten is widely used in the production of various steel, the common tungsten-containing steel High-speed steel, tungsten steel and tungsten-cobalt magnets with high magnetization and coercive forces. These steels are mainly used in the manufacture of various tools such as drill bits, Tungsten milling cutters, drawing dies, female molds and male molds.

Tungsten carbide has high abrasion resistance and refractibility, Tungsten its hardness is close to the diamond, which is often used in some cemented carbide. At present, tungsten carbide based carbide is the largest consumption area of tungsten, this carbide is the tungsten carbide micron powder and metal adhesives (such as cobalt, nickel, molybdenum) in a vacuum furnace or hydrogen reduction furnace sintering Of the powder metallurgy products. Tungsten carbide - titanium carbide - tantalum carbide (niobium) - cobalt and steel bonded carbide and other four categories, the carbonation of tungsten carbide - titanium carbide - titanium carbide - titanium carbide - titanium carbide - titanium carbide - Tungsten based carbide is mainly used in the manufacture of cutting tools, Tungsten mining tools and drawing die.

Tungsten compounds are often used as catalysts and inorganic colors, such as tungsten disulfide used in the preparation of synthetic gasoline as a lubricant and catalyst, Tungsten bronze tungsten oxide used in painting, calcium or magnesium tungsten commonly used in the phosphor.

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