[1]胡伯平,饶晓雷,钮萼,等.稀土永磁材料的技术进步和产业发展 [J].中国材料进展,2018,(09):001-5.[doi:10.7502/j.issn.1674-3962.2018.09.02]
HU Boping,RAO Xiaolei,NIU E,et al.Technology Progress and Industry Development of Rare-earth Permanent Magnets[J].MATERIALS CHINA,2018,(09):001-5.[doi:10.7502/j.issn.1674-3962.2018.09.02]
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稀土永磁材料的技术进步和产业发展
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
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- 期数:
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2018年第09期
- 页码:
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001-5
- 栏目:
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- 出版日期:
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2018-09-30
文章信息/Info
- Title:
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Technology Progress and Industry Development of Rare-earth Permanent Magnets
- 作者:
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胡伯平；饶晓雷；钮萼；蔡道炎
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中科三环研究院
- Author(s):
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HU Boping； RAO Xiaolei；NIU E；Cai Daoyan
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Zhong Ke San Huan Research
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- 关键词:
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稀土; 永磁材料; 钕铁硼; 钐钴; 烧结; 粘结; 快淬
- Keywords:
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rare earths; permanent magnets; Nd-Fe-B; Sm-Co; sintering; bonding; rapidly quench
- DOI:
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10.7502/j.issn.1674-3962.2018.09.02
- 文献标志码:
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A
- 摘要:
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近年来，烧结钕铁硼生产技术一直在不断进步，晶界扩散、晶界调控等工艺被普遍采用，晶粒细化技术正在推进；靶式气流磨在生产中开始使用，自动成形、自动检测和自动充磁等也有很大提高。随着烧结钕铁硼在高性能电机中日益广泛的应用，高磁能积且高工作温度磁体成为研发的核心目标，成果显著。为了促进稀土元素平衡利用、降低磁体成本，高丰度稀土烧结磁体研发也取得重大突破。粘结磁体方面，国产各向同性快淬钕铁硼磁粉的产量增长迅速，钐铁氮磁粉量产也初具规模，各向异性HDDR钕铁硼磁粉已可批量生产，各向异性粘结磁体正在开发之中。自本世纪以来，全球钕铁硼产业在中国的带动下持续放量增长。2002~2017十五年期间，我国和全球烧结钕铁硼产量的年平均增长率分别为17.8%和14.5%，粘结钕铁硼产量的年平均增长率分别为10.1%和5.6%。2017年，全球稀土永磁材料的成品产量为13.1万吨，其中烧结钕铁硼磁体占91.4%，粘结钕铁硼磁体占6.7%，热压/热变形钕铁硼磁体占0.6%，烧结钐钴磁体仅占1.3%。
- Abstract:
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In recent years, sintered Nd-Fe-B production techniques have been continuously progressing. The grain boundary diffusion and grain boundary modification techniques have been commonly used and the grain refinement technique is advancing. Targettype jet mills begin to be used in production. The automatic compressing, automatic inspection and automatic magnetization have been greatly improved. With wide applications of sintered Nd-Fe-B magnet in high performance motors, the R&D of magnets with both high magnetic energy product and high working temperature become the core objective, which has made notable achievement. In order to improve the balanced use of rare earth resources and reduce the magnet costs, the R&D of magnet with high abundant rareearth has made great breakthrough. For bonded magnets, the output of domestic isotropic rapid quenching Nd-Fe-B powder is growing rapidly. Sm-Fe-N powder is also in mass production. The anisotropic HDDR Nd-Fe-B powder is capable for mass production and the anisotropic bonded Nd-Fe-B is under developing. Since the beginning of the 21st century, with Chinese Nd-Fe-B industry in the lead, the global Nd-Fe-B industry is sustainably increasing. From 2002 to 2017, the average annual growth rates of sintered Nd-Fe-B magnets sales quantity is 17.8% for China and 14.5% for the world respectively. The average annual growth rates of bonded Nd-Fe-B magnets sales quantity is 10.1% for China and 5.6% for the world respectively. In 2017, the production output of global rareearth permanent magnets is 131 thousand tons. Among them, 0.6% and sintered Sm-Co magnet 1.3%.
备注/Memo
- 备注/Memo:
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收稿日期 ： 2018 -0 8 - 01
第一作者 、 通迅作者 ： 胡伯平，男， 1957 年生，研究员， Email: bphu@san-huan.com.cn
更新日期/Last Update:
2018-08-31