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Tungsten The Use Of
Jul 04, 2017

Tungsten, a metal element. Atomic number 74, atomic weight 183.84. Steel gray or silver white, high hardness, high melting point. Tungsten The use of tungsten for the manufacture of filament and high-speed cutting alloy steel, super-hard mold, also used for optical instruments, chemical equipment.

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, cast iron and so on. Tungsten Ferrous metals other than metal are called non-ferrous metals. Tungsten is a non-ferrous metal category. The strength and hardness of the colored alloy are generally higher than pure metal, the resistance is larger than that of pure metal, Tungsten the temperature coefficient of resistance is small, and it has good comprehensive mechanical properties. Thus, Tungsten as a nonferrous metal, Tungsten tungsten has a very high strength and hardness. Because of this feature, with a high hardness, wear resistance of tungsten carbide is a large-scale application in cutting tools, mining tools.

Tungsten is a strategic metal. Is an important part of contemporary high-tech new materials, 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, but it is essential, lack it can not. Tungsten And thus widely used in contemporary communications technology, electronic computers, Tungsten aerospace development, medicine and health, photographic materials, optoelectronic materials, energy materials and catalyst materials.

Tungsten is an important alloy of steel, improve the strength of steel, hardness and wear resistance. The main tungsten steel has high-speed tool steel, hot die steel, Tungsten series of tools, die steel, ordnance, turbine steel, Tungsten magnet and so on. With tungsten steel manufacturing tools, higher than the strength of ordinary steel tools several times or even several times; with tungsten steel drums, barrels, Tungsten in continuous shooting, even if the barrel was shot friction, can still maintain good flexibility And mechanical strength. In the metal cutting machine, with tungsten steel to do the knife, the temperature up to 1000 ℃ still hard as before. Tungsten-containing tungsten-chromium-cobalt alloy steel containing 3% to 15% of the tungsten-chromium-cobalt alloy is sputtered or surfaced to the surface of ordinary steel parts. It is tantamount to putting hard "armor" on the part,Tungsten which is resistant to temperature and resistant to corrosion. Tungsten Wear, life can be extended several times. Tungsten Due to the superior characteristics of tungsten steel and wide use, the world's annual production of tungsten, 90% are used to manufacture tungsten steel. The widely used high speed steel contains 9% to 24% tungsten, 3.8% -4.6% chromium, 1% -5% vanadium, 4% -7% cobalt, 0.7% -1.5% carbon. High-speed steel is characterized by a high tempered temperature in the air (700-800 ℃), can be automatically quenched, Tungsten so until 600-650 ℃ it also maintains high hardness and wear resistance.Tungsten  The tungsten steel in the alloy tool steel contains 0.8% to 1.2% of tungsten; the chrome tungsten silicon steel contains 2% to 2.7% of tungsten; Tungsten chromium tungsten steel contains 2% to 9% of tungsten; chromium tungsten and manganese steel contains 0.5% -1.6% tungsten.

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