Method for Preparing a Rare Earth Tungsten Electrode Material

The present invention belongs to the technical field of metallurgical smelting, more particularly to a method for preparing a melting tungsten electrode material.

Then vacuum electron beam melting temperature tungsten bulk mixture, solidification cooling; this method, tungsten powder and mixed rare earth oxide powder to obtain a mixed powder, then mixed the powder molding obtained by treating a mixture of tungsten block by pressing rare earth alloy ingot obtained tungsten; final rare earth tungsten alloy ingot is heat treated under vacuum, to obtain rare earth tungsten electrode material. The present invention provides an electron beam energy of a high-density tungsten smelting of rare earth materials, rare earth tungsten electrode material obtained after melting caused by high density, as compared with the hot pressing sintering, electron beam melting technology in the manufacture of refractory metals, with obvious advantage, the organization made better, improve the performance of the electrode materials by incorporating a certain amount of rare earth oxides, by analyzing the changes in microhardness, adding rare earth oxides can be judged on the hardness electrodes have improved to some extent.


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