Preparation of Ag-based electrical contact materials and their anti-arc erosion property
To address the issues of poor arc erosion resistance and short electrical life of Ag-based electrical contact materials,the surface of carbon fibers was modified by chemical copper plating,and then Ag-based electrical contact materials were prepared by using powder metallurgy technol-ogy.The microscopic morphology of the carbon fiber surface and the surface of the Ag-based elec-trical contact material was characterized by scanning electron microscopy;the overall mass loss was measured and the arc erosion morphology was characterized by arc erosion testing of the Ag-based electrical contact material through the electrical performance simulation open-break sys-tem.The results show that the surface modification of carbon fibers can effectively improve the wettability with Ag substrate;and that the addition of carbon fibers can effectively improve the arc erosion resistance of AgSnO2 electrical contact materials compared with AgSnO2 electrical contact materials without carbon fibers.
万方数据
维普
