Tungsten applicatin - Tungsten-based alloy

The tungsten materials use for preparation of tungsten-based alloy, are mainly metal tungsten powders and tungsten materials with certain purity, particle size and the grain shape, including tungsten metal plates, rods, wire rods, and mainly used for manufacturing the tubes, radio components, high temperature furnace heating elements and insulating element, and tungsten crucible. Tungsten-based alloys include tungsten-based contact alloy and high-density alloy. High density alloys is divided into the W-Ni-Fe series, and W-Cu series, which is characterized the high density reached 16.5 ~ 19.0g/cm³, equivalent to more than 2 times that of the steel; high strength, up to 800~1000 MPa; good plasticity, W-Ni-Fe series sintered state elongation rate of 10% to 15%; good oxidation resistance, in air above 500℃ have no obvious oxidation; good machining performance, which could be deal with lathing, milling, and planing processing. W-Ni-Cu can be used as gyro rotors and counterweight elements in aircraft navigation instruments, and the control accuracy is very high. In addition, the W-Ni-Fe, W-Ni-Cu high-density alloy has also been widely used for the manufacture of shielding materials in the medical industry, the vibrating elements of communications industry in the phone and BP machines, in the sports and entertainment industry used as the weight elements of the ball head part in Golf racket, in the electrical industry used as high-voltage contacts and the electrical heating elements. W-Cu (Mo-Cu) materials have good thermal conductivity and electrical conductivity, a small linear expansion coefficient, can be widely used as electrical contact materials, microelectronic packaging materials and the heat sink materials. This kind of alloy materials attached great importance to the countries in the world, has become one of the most active areas of research in the materials science community. W-Cu (10% ~ 40% Cu), and the W-Ag alloy combining the good electrical conductivity and thermal conductivity of copper and silver, and the wear resistance of tungsten, could be manufactured knife switch, circuit breaker, the contacts of switches in the working parts of spot welding electrodes and so on.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

• < Prev
• Next >