本发明公开了一种超高强高导电性铜合金，由以下成分按重量百分比组成:Ni 4. 6-6.0%、Co 1.0-2.0%、Si 1.0-2.0%、Mg 0.05-0.4%、Sr 0.01-0.1%、Nb 0.01-0.1%，余量为Cu，各成分的质量百分比之和为100。所述铜合金的制备方法包括熔炼–铸造–均匀化–热轧–固溶–组合形变热处理几个步骤。本发明的铜合金采用了环保、易添加、不易烧损的元素代替易烧损元素Be，通过合金元素成分设计析出第二相粒子阻碍位错运动，同时减少基体中固溶的元素;采用特殊的双级热轧固溶处理工艺，使组织更加的均匀，促进粗大析出相回溶，为后续形变热处理提供组织准备;通过组合形变热处理，促进纳米强化相的析出，使得该体系合金具有优良的力学性能和导电能力，得到的铜合金力学性能优异，电导率高。

The invention discloses a super-high-strength and high–conductivity copper alloy, which is composed of the following components in weight percentage: Ni 4.6-6.0%, Co 1.0-2.0% , Si 1.0-2.0%, Mg 0.05-0.4%, Sr 0.01-0.1%, Nb 0.01-0.1%, the residual amount is Cu, the sum of the mass percentage of each component is 100. The preparation method of the copper alloy comprises the steps of melting, casting, homogenizing, hot rolling, solid solution and combined deformation and heat treatment. The copper alloy adopts environment-friendly, easy-to-add and non-easy-to-burn element instead of easy-to-burn element Be a special two-stage hot rolling solid solution treatment process is adopted to make the microstructure more uniform, promote the coarse precipitated phase to redissolve, and provide the microstructure preparation for the subsequent deformation heat treatment, the system alloy has excellent mechanical properties and electrical conductivity. The copper alloy obtained has excellent mechanical properties and high electrical conductivity.