What is Copper Tungsten Electrical Contacts

Tungsten is a silvery white, lustrous (in one piece) or grey (powder
form) heavy metal, which is hard and brittle but can be made stretchable
by hammering or, drawn to form thin wires. Tungsten is characterised
by its high melting point, good thermal conductivity, corrosion
resistance and low thermal expansion. Tungsten is suitable for resistant
heating elements, filaments (high temperature furnaces, electrical
engineering), evaporation boats, in evaporation systems engine parts,
x-ray anodes and welding electrodes. Tungsten rods can be melted into
high-melting glasses to add electrical conductivity. Tungsten is used in
nuclear engineering. Tungsten alloys are used about 80 % in the steel
industry and approximately 10 % each in the hard metal industry and
electrical engineering.

The high electrical and thermal conductivity of tungsten copper alloy
allows a cool, effective transfer of power, while the excellent
arc-resistance properties of tungsten copper minimize arc erosion and
transfer problems.

The high Electrical & thermal conductivity of Copper Tungsten
are combined with the arc-resistant & non-welding properties of
tungsten or their carbides to form an extensive series of compositions
each designed to give the best performance for your particular
application. These materials are used for such heavy duty contact
applications as:

*Circuit breakers, air & oil immersed

*Arcing tips or arc runners

*Make & break contacts

*Heavy duty conductors, relays & switches.


Cobalt-Chromium Alloy Manufacturer in China http://www.cobaltalloy.net/image
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