为了采用分形技术回收印刷电路板废料中的铜，本文对旋锤式冲击磨制备铜粉的颗粒形状进行了试验研究。将铜板和印刷电路板废料作为样品。磨的工作条件（如，锤头圆周速度试和筛孔尺寸忒）对粉磨产品的形状和粒度分布的影响进行了测定。制备出均匀的球形颗粒的铜粉在很大程度上 In order to recover the copper in PCB waste by fractal technology, this paper studied the particle shape of copper powder prepared by rotary hammer mill. Copper and PCB waste are samples. The working conditions of the mill, such as the hammerhead peripheral speed test and the mesh size, were used to determine the shape and particle size distribution of the ground product. The preparation of uniform spherical particles of copper powder to a large extent