| abstract |
The invention provides a weak-electric rare earth modified silver-copper-oxide electrical contact material and a preparation method thereof. The method combines solid solution strengthening and dispersion strengthening technology, first smelting and atomizing to obtain AgCu rare-earth-Me powder, and then oxidizing Obtain silver copper oxide oxide powder, and then pass hydrogen reduction to obtain silver copper oxide powder, and then shape, sinter and extrude to obtain silver copper oxide electrical contact material generated in situ by oxide, and finally obtain good wear resistance , Good resistance to arc erosion, good welding resistance, silver-copper oxide electrical contact material. The microstructure oxide dispersion part of the material prepared by the invention and the rare earth modification enhancement work together, the material has good breaking ability and stable contact resistance, can improve the quality stability of weak electric appliances or electronic products, and prolong their service life. |