Tungsten Copper Electrode Powder Direct Sintering III

In the process of mechanical alloying (MA), the powder will be refined by the impact of metal ball and get nano-crystalline pre-alloyed powder. The preparation of nano composite powder (＜20nm) by MA can direct sinter tungsten copper material, which has high density and uniform tissue. However, it has low efficiency and will bring in impurities during the long-time ball milling.

Compared with MA, co-reduction is a kind of process that refining tungsten and copper oxide ball or salts through ball milling, or Using a mixed solution of salts obtained ultrafine or nano-crystalline tungsten-copper compound mixed powder, and then get ultrafine or nano-crystalline tungsten copper mixed powder by reductive hydrogen H₂. After pressing and sintering, tungsten copper material properties can be remarkably improved. Co-reduction can be suitable for different raw material and different process, will not bring in any impurity so that it has bright prospects.

More information about tungsten copper electrode powder direct sintering, click here:

http://news.chinatungsten.com/en/tungsten-information/79974-ti-10240

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