摘要
为了促进晶界扩散钕铁硼永磁材料新工艺、新材料的应用,为生产企业和应用企业提供指南,制定了《晶界扩散钕铁硼永磁材料》国家标准。调查了钕铁硼永磁材料国际标准、国家标准和世界领头企业的技术标准,结合起草单位意见,确定了本标准涉及36个牌号作为技术要求对象。采用经验公式计算主要磁性能技术指标,并征集了参与企业样品测试数据加以验证。本标准G55SH、G52UH、G54UH、G48EH和G50EH等综合磁性能高于日本企业标准,本标准处于国际先进水平。
In order to promote the application of new technology and new materials for grain boundary diffusion NdFeB permanent magnet materials,also to provide important guidance to production companies and industrial chain application companies,the national standard of“Grain Boundary Diffusion Neodymium Iron Boron Permanent Magnet Material”was developed.While the international and national standards of NdFeB permanent magnet materials and the technical standards of the world’s leading companies were investigated,and the feedback from the drafting unit was combined with,it is determined that 36 grades involved in this standard are subject to technical requirements.Empirical formulas were used to calculate the main magnetic performance technical indicators,and sample test data from the drafting units were collected for verification.The comprehensive magnetic properties of G55 SH,G52 UH,G54 UH,G48 EH and G50 EH etc.in the standard are higher than those of Japanese companies,and the standard is at the international advanced level.
作者
吕向科
沈国迪
申立汉
高兰
张民
LYU Xiang-ke;SHEN Guo-di;SHEN Li-han;GAO Lan;ZHANG Min(Ningbo Yunsheng Co.,Ltd.,Ningbo 315806,China;China Nonferrous Metals Techno-economic Research Institute Co.,Ltd.,Beijing 100080,China)
出处
《稀土》
CAS
CSCD
北大核心
2022年第1期134-141,共8页
Chinese Rare Earths
关键词
烧结钕铁硼
晶界扩散
永磁材料
国家标准
sintered neodymium iron boron
grain boundary diffusion
permanent magnet materials
national standard
