The Preparation Method of High Dispersion Tungsten-copper Composite Powder

The present invention provides a method for preparing a high dispersion of tungsten-copper composite powders. Characterized in that: The present invention includes the preparation of tungsten-copper composite oxide precursor, high-energy ball milling a total reduction of oxide powders sintered tungsten-copper composite powder and other steps. Specific steps are as follows;

1) Preparation of W-Cu composite oxide precursor, tungsten powder and copper powder in accordance with the W-2-30Cuw t% in the blender mixed oxide at 650 ℃ -700 ℃ horse charge air atmosphere furnace, obtain a mixture of CuWO4 and WO3 composed of mixed powder after oxidation in high-energy ball milling 0-12h in;

2) Total energy ball milling oxide powder after reduction in H2 atmosphere milled powders reduction, reduction temperature of 650 ℃ -750 ℃;

3) After the sintered tungsten-copper composite powder reduced powder was pressed too 50% -55% relative density of compacts sintered at 1150 ℃ -1600 ℃.


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