The invention discloses a low B rare earth magnets, the rare earth magnet containing R2T14B main phase, including the raw material composition is as follows: R:13.5at% ~ 14.5at%, B:5.2at% ~ 5.8at%, Cu:0.3at% ~ 0.8at%, Co:0.3at% ~ 3at%, and the balance of T and unavoidable impurities, the R includes at least one rare earth element Nd the T, as the main elements including Fe. The rare earth magnet composite by adding 0.3 ~ 0.8at% of Cu and the amount of Co, the grain boundary formed in 3 Cu rich phase, the magnetic effect of 3 kinds of Cu rich phase in the grain boundary in the B and on the grain boundary problem of insufficient repair, squareness and heat resistance can significantly improve the magnet.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请,说明书已公开。
【技术保护点】
PCT国内申请,权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】2013.11....
【专利技术属性】
技术研发人员:永田浩,喻荣,
申请(专利权)人:厦门钨业股份有限公司,
类型:发明
国别省市:福建;35
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