本发明涉及铜箔压延技术领域,特别涉及一种6 μm高强度压延铜箔的轧制方法,涉及压延铜箔加工领域,其特征在于,包括以下步骤：1)轧制母材制备：先将铜熔炼铸造成锭,再经热轧开坯、粗轧、预精轧以及退火，得到厚度0.08 mm的合金轧制母材，晶粒度≤20 μm；2)铜箔轧制：轧制油粘度为5.1-6.2 mm/s²，轧制总共分6个轧制道次进行，最终轧制得到厚度6 μm、抗拉强度≥500 N/mm²的高强度压延铜箔。通过以上方法可实现一种6 μm压延铜箔的轧制，使其厚度公差≤0.3 μm，抗拉强度为500-600MPa，延伸率≥1.0%,表面粗糙度Ra为0.05-0.12 μm。

The invention relates to the technical field of copper foil rolling, in particular to a rolling method of 6 μm high strength rolling copper foil, and relates to the processing field of rolling copper foil, it includes the following steps: 1) rolling base material preparation: first, copper is melted and cast into ingots, then by hot rolling, roughing, pre–finishing rolling and Annealing, the alloy rolling base material with thickness 0.08 mm, grain size ≤20 μm; 2) copper foil rolling: rolling oil viscosity is 5.1-6.2 mm/s², rolling is divided into 6 rolling passes, finally rolling high strength rolled copper foil with thickness 6 μm and tensile strength ≥ 500 N/mm². The thickness tolerance is less than 0.3 μm, the tensile strength is 500-600 MPa, the elongation is more than 1.0%, and the surface roughness is 0.05-0.12 μm.