Tungsten copper military alloy
is easy to be machined. And with this series of fine characteristic,
so copper tungsten military has been widely used in mechanical,
electrical, instruments and other civil industrial, and also is widely
in making important as well as complex components for aviation,
spaceflight, weapons in the military industrial.
The theory of copper tungsten military
materials applied as high temperature material in military use is that
when the air temperature is close to event exceed the temperature
melting point of tungsten (over3,000 ℃), the content of copper in
tungsten copper materials evaporate and then absorb a great deal of heat
, which greatly reduce temperature of tungsten copper military made parts. The table below shows the properties of high temperature tungsten copper.
Few materials could continue working in such high temperature. Therefore, one of the important use of tungsten copper military
material is as high-speed and high temperature airflow ablation and
flushing parts in rockets and missiles, such as gas helm, nozzle,
throat lining, the nose cones, etc. In addition it still can be used as a
medical cover of tank, the tailpipe and orbit materials of
electromagnetic gun. With these applications, copper tungsten
military materials should be handled strictly as the following two
items.
In order to guarantee the properties of high temperature strength, good resistance to ablation, and erosion resistant of tungsten copper military
material in high temperature ,it must be sure the high density of
framework and skeleton intensity of tungsten, therefore, copper
tungsten militarymaterials in this application generally contain 5% to
10% copper.
And for the sake of making the tungsten copper military
materials gasification and smoothly reduce the material surface
temperature by absorbing large mass of heat, it must be ensure that
tungsten skeleton pore have very good connectivity and good capillary
function at low copper content.
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