▎ 摘　　要

NOVELTY - Preparing neodymium-iron-boron rare earth permanent magnetic material comprises (i) taking the raw materials Nd, Pr, B, Al, Cu, Co, Ga, Mo, Fe, casting the raw material into ingot to obtain the rare-earth permanent magnet ingot, (ii) crushing the obtained rare-Earth permanent magnetic ingot by hydrogen crushing process, and then processing by airflow grinding to obtain a rare earth powder, (iii) taking graphene, terbium trioxide and silver oxide to obtain mixture, grinding the mixture and solvent adding device, filtering and drying to obtain additive powder, uniformly mixing the rare earth powders and additive powders to obtain rare earths powder and additive powder mixture, (iv) placing the prepared rare earthpowder and additive mixture in a magnetic field, and pressing and forming to obtain rough blank, and (v) vacuum sintering and secondary aging heat treatment. USE - Preparation method of neodymium-iron-boron rare earth permanent magnetic material used in wind power generation, magnetic suspension train, new energy automobile and new technology field. ADVANTAGE - The method effectively improves the magnetic energy product and Curie temperature of the neodymium-iron-boron rare earth permanent magnetic material. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the preparation method of neodymium-iron-boron rare earth permanent magnetic material (Drawing includes non-English language text).