本发明涉及一种高强高导铜镍硅合金的生产工艺，属于引线框架材料生产工艺技术领域。本发明所述的一种高强高导铜镍硅合金，包含1.0-3.5% Ni，0.5-0.8% Si等，经热轧粗轧和精轧后水冷处理，时效后的随炉冷却处理，再经过冷轧、退火生产工艺，获得抗拉强度大于850 MPa和导电率大于50 %IACS的铜合金板材。热轧粗轧温度为750–900 ºC，总压下量为70–90%；热轧精轧温度为550–650 ºC，总压下量为10–20%，采用压下量逐道减小的多道次轧制；时效温度为440–460 ºC，时效时间为4–6 h;冷轧压下量为55–65%，连续退火工艺的加热速度为5–10 ºC/s，保温温度为380–420 ºC，保温时间为30–40 s。

The invention relates to a production process of high strength and high conductivity Cu-Ni-Si alloy, which belongs to the technical field of lead frame material production process. The high-strength and high-conductivity copper-nickel-silicon alloy comprises 1.0-3.5% Ni, 0.5-0.8% Si and the like. It is treated by water cooling after hot rolling and finishing rolling, then by furnace cooling after aging, and then by cold rolling and annealing production process, copper Alloy sheets with tensile strength greater than 850 MPa and conductivity greater than 50% IACS were obtained. The hot rolling temperature is 750-900 ºC, the total reduction is 70–90%, the hot rolling temperature is 550–650 ºC, the total reduction is 10 ºC 20%, and the multi–pass rolling with reduced reduction is adopted, the aging temperature is 440-460 ºC, the aging time is 4-6 h, the reduction of cold rolling is 55-65%, the heating rate of continuous annealing is 5-10 ºC/s, the holding temperature is 380-420 ºC, the holding time is 30–40 s.