CAJ | 학술논문

在气流磨过程中适量添加分散剂，可促使超细粉粒的分散和及时从需求颗粒度的颗粒表面分离。这不但明显地降低了烧结磁体中的氧含量，而且极大地改善了烧结Nd-Fe-B磁体的微结构和永磁性能。在采用分散剂后，后续的模压成型即使在无严格的防止氧化保护下，利用传统的烧结Nd-Fe-B磁体工艺，我们批量生产出N48档的高性能Nd-Fe-B磁体。
재기류마과정중괄량첨가분산제，가촉사초세분립적분산화급시종수구과립도적과립표면분리。저불단명현지강저료소결자체중적양함량，이차겁대지개선료소결Nd-Fe-B자체적미결구화영자성능。재채용분산제후，후속적모압성형즉사재무엄격적방지양화보호하，이용전통적소결Nd-Fe-B자체공예，아문비량생산출N48당적고성능Nd-Fe-B자체。
The right amount of disperser added before the jet milling promotes dispersing of excessively fine powders and separating from moderate size of particles． This not only decreases obviously the amount of oxygen in sintered Nd-Fe-B magnets， but also improves greatly their microstructure and magnetic performance． Employing the disperser，we have mass-produced high performance sintered Nd-Fe-B magnets with N48 using a conventional Nd-Fe-B sintered process without strictly protecting against oxidation during the following pressing．