Copper alloy conductor for railway electric power transmission line and preparation method thereof

The invention relates to a copper alloy conductor for a railway electric power transmission line and a preparation method thereof and belongs to the technical field of non-ferrous metal conductor processing, copper alloy preparation and cable manufacture. The copper alloy is a copper-silver two-component alloy having silver content of 0.05% to 0.12%. Through a vacuum self-consuming melting-vacuumelectron beam melting combined technology, a molten copper-silver rod is cleaned and purified and harmful gas such as oxygen, hydrogen and nitrogen and harmful impurities are eliminated so that the high purity and high clarity of the copper-silver alloy are realized. Through large extrusion ratio deformation, casting defects are eliminated, the micro-structure is refined and the plasticity of thealloy is improved. The later drawing process is free of annealing and the total deformation of drawing is 50% to 75%. The preparation method can produce the high purity and high clarity copper-silverconductor, has gas element