Using modified conventional powder metallurgy process for sintered Nd-Fe-B magnets, including annealing of ingot alloy, hydrogen decrepitating, modified jet mill and adding additive during jet milling, we have mass-produced high performance and high corrosion resistance sintered Nd-Fe-B magnets from a conventional ingot alloy without strict protections against oxidation.
利用改进的传统粉末冶金工艺(铸锭热处理、氢爆、改进型气流磨设备以及在气流磨中掺入添加剂等)，在无严格的防氧保护情况下，从传统合金铸锭出发，工业化生产出具有高耐蚀性的N48～50档烧结Nd-Fe-B 磁体。
Density of the specimen increases with increasing SPS time and temperature. Microstructure of the specimen after SPS shows that the final grain size of sintered ingot can be efficiently controlled by the annealing temperature.
SPS的致密度随烧结时间的延长和温度的升高而增加，SPS后微观组织的观察表明，通过控制退火温度可有效地控制合金最终的晶粒尺寸。
Influence of the Inhomogenous Microstructures of Nd-Fe-B Ingot on the Powdering Process of Sintered Magnets and Their Magnetic Properties
铸锭组织的不均匀性对烧结Nd-Fe-B磁体的制粉工艺及磁性能的影响