Research on the effect of different CuO content on the electrical properties of doped AgCuO

Four AgCuO contact materials with different CuO contents were prepared using atomization technology. The electrical performance parameters of these four materials, including electrical life, welding force, arc energy, and arc burning time, were tested under AC250V and 25 A resistive load conditions using simulated electrical performance testing equipment. The test results and the surface arc erosion morphology of the contacts after the test were analyzed. Research has found that as the CuO content increases, the arc energy and arc time of the contact material gradually decrease, and the anti fusion welding performance gradually increases. Although it may lead to changes in the physical properties of the material, it greatly helps to improve the anti fusion welding performance of the material, thus reducing its impact on the material's performance; The addition of CuO is beneficial for suppressing material transfer and splashing. When the amount of CuO added is 15%, the surface burn morphology and electrical performance parameters of the material are better.