Method for Improving Heat Conductivity of Tungsten Copper Alloy

The invention discloses a method for improving the heat conductivity of tungsten copper alloy.

The method comprises the following steps: step 1, the tungsten copper alloy is prepared through a powder metallurgy method, wherein the mass fraction of the tungsten is 80-85%, and the rest is copper; step 2, the tungsten copper alloy prepared through the powder metallurgy method is subjected to heat treatment under ultrahigh pressure, wherein the ultrahigh pressure is 3.0-5.0 GPa, the heating temperature under the ultrahigh pressure is 820-900 DEG C; the tungsten copper alloy is subjected to heat insulation for 20-30 min, and then is cooled naturally under the ultrahigh pressure until being cooled to the room temperature; step 3, the tungsten copper alloy subjected to the heat treatment under the ultrahigh pressure is placed in a nitrogen-protected normal-pressure resistance furnace to be heated to 450-550 DEG C; the time for aging treatment is 90-120 min; the tungsten copper alloy is cooled naturally until being cooled to the room temperature. According to the method, the problem that tungsten copper alloy prepared through the powder metallurgy method is not high in density and lower in heat conductivity is solved. The method mainly adopts the ultrahigh-pressure heat treatment technique, and has the advantages that the feasibility is high, the technique is simple, the quality of the tungsten copper alloy is stable, and the heat conductivity of the tungsten copper alloy can be improved greatly.


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