Tungsten Unique Properties and Wide Applications

Tungsten is a kind of silvery metal together with the appearance equivalent to steel. It has higher melting point, low vapor pressure and little vaporization velocity. Also, higher hardness, excellent high-temperature strength and property of electric conduction and thermal transfer are its physical properties. In standard temperature, Tungsten Chemical Properties are steady. It doesn?¡¥t react with air and water and is erosion resistant in order that it doesn?¡¥t solve in hydrochloric acid, sulfuric acid, nitric acid and aqueous alkali, but only in mixture of chloroazotic acid, nitric acid and hydrofluoric acid. Nonetheless, in higher temperature, it chemically combines with chlorine, bromine, iodine, nitrogen and sulfur but not hydrogen.

On account of particular properties of tungsten, it gets much favor by Tungsten Producers, taking the instance of China Tungsten Online. Too, Tungsten Industry is much wide considering that it has wide applications which cover mineral, metallurgy, machine, building, transportation, electronic, chemical market, light industry, textile, military, aerospace, science and various industrial fields. Presently, tungsten is broadly applied in modern technologies by the state of pure metal and alloy system. Alloy system main refers to alloy steel, cemented carbide according to tungsten carbide, abrasion resistant alloy and fantastic thermal alloy. Beneath, let?¡¥s come to its application in following industrial fields.

Cemented carbide based on tungsten carbide

Carbide of tungsten has high hardness, erosion resistance and infusibility on account of Tungsten Metal Properties and mechanical properties of tungsten. It consists of tungsten carbide and a tiny quantity of cobalt. Cobalt acts as metal of bonding agent to offer alloy needed intensity. Those tungsten carbide used in completed steel still include titanium, tantalum and niobic carbide. All these alloys are manufactured by energy metallurgic approach. Cemented carbide cutter has a cutting speed far faster than that of great chisel tool steel cutter. Therefore, cemented carbide is mainly applied for cutting tools, mine tools and wire-drawing dies.

Wonderful strength and abrasion resistant alloy

As the most infusible metal, tungsten would be the element of a lot of higher strength alloys like alloys composed of tungsten, chromium, cobalt and carbon which are primarily used in surface coating on strongly erosion resistant parts like valve of aircraft engine, functioning components of die thermal cutter, impeller of turbine motor, digging gear and plowshare. In aviation, rocket technologies and also other departments that have requirements on higher thermal strength on machine components, engine and some apparatus, tungsten along with other fusible metal like alloy of tantalum, niobium, molybdenum and rhenium can be utilized as higher strength material.

Make contact with material and higher proportion alloy

Tungsten-copper alloy and tungsten-silver alloy manufactured by powder metallurgy technique has outstanding electrical conductivity and thermal conductivity of both copper and silver at the same time as tungsten abrasion resistance. Hence, tungsten, by virtue of Tungsten Material Properties , becomes the powerful contact material in manufacturing functioning parts like knife switch, disconnector and spot-welding electrode. As for all those high proportion alloys of tungsten, nickel and copper and alloys replacing copper with ion are utilised to manufacture gyroscope rotor, plane, balance weight of control rudder, radioactive shield of radio isotope and charging basket.

Electric vacuum illuminating material

Tungsten is applied in electron tube production, radio electronics and X-ray technology. Tungsten might be applied to make the anticathode and cathode of X-ray tube and gas discharge tube too as contactor of wireless apparatus and electrode of atom hydrogen welding gun. At meanwhile, tungsten would be the ideal material for glower and taenidium on account of Tungsten Filament Properties. Additionally, tungsten is applied to manufacture thermionic cathode and grid electrode of electronic oscillation tube, cathode of higher stress rectifier and separately heated cathode heater in different electronic instruments, which can work in hydrogen, inert gases or vacuum.