The high chromium Cu-Cr-Zr alloy was prepared by vacuum melting process

and the high chromium Cu-Cr-Zr spring contact wire was prepared by extrusion

rolling

multi-pass drawing and intermediate annealing.The performance of the spring contact wire was measured.The results show that the electric conductivity and the tensile strength reach 43.419～47.345 MS/m and 650～742 MPa

respectively.The comprehensive performance is much higher than that of the traditional beryllium copper

samarium cobalt copper and chrome zirconium copper spring contact wire.In order to improve the quality of high chromium Cu-Cr-Zr alloy ingots

the alloy smelting process was analyzed in detail

especially to strengthening manual feeding.