High-strength, high-conductivity and high-plasticity beryllium copper alloy and preparation method thereof

The invention discloses a high-strength, high-conductivity and high-plasticity beryllium-copper alloy and a preparation method thereof. The preparation method comprises the following steps that S1, the beryllium-copper alloy is obtained; s2, the beryllium copper alloy is subjected to solution treatment and quenching treatment; s3, cold machining deformation treatment is conducted on the quenched beryllium copper alloy; and S4, aging treatment is conducted on the beryllium-copper alloy subjected to cold machining deformation till the moment when a first strengthening peak of the beryllium-copper alloy appears. The beryllium-copper alloy prepared by the invention has high strength, high plasticity and high conductivity, and can meet the requirements of modern industrial development. 本发明公开了一种高强高导高塑性铍铜合金及其制备方法，制备方法包括以下步骤：S1：获取铍铜合金；S2：对铍铜合金进行固溶处理和淬火处理；S3：对淬火处理后的铍铜合金进行冷加工变形处理；S4：对冷加工变形后的铍铜合金进行时效处理，时效处理进行至铍铜合金的第一强化峰出现的时刻。本发明制得的铍铜合金具有高强度、高塑性和高导电性能，能够符合现代化工业发展的需要。