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合金铸片制粉工艺对烧结NdFeB材料性能的影响
引用本文:邓盛贤,赵导文,陈明,张铭杰,唐杰.合金铸片制粉工艺对烧结NdFeB材料性能的影响[J].磁性材料及器件,2012(2):60-62,76.
作者姓名:邓盛贤  赵导文  陈明  张铭杰  唐杰
作者单位:西南应用磁学研究所;烟台正海磁性材料股份有限公司;绵阳师范学院化学与化学工程学院
基金项目:“核心电子器件、高端通用芯片及基础软件产品”重大专项基金资助项目(2008ZX01006-005-02)
摘    要:对片铸工艺制备的同批次NdFeB合金铸片分别采用传统工艺(磨机破碎+气流磨)和新工艺(氢爆碎+气流磨)制粉,并将两种料粉分别通过磁场取向成型、真空烧结及热处理制成烧结NdFeB磁体。对比分析了两种制粉工艺制备的烧结NdFeB材料的显微结构和磁性能。结果表明,采用氢爆碎与气流磨结合的制粉制备的磁性能更高。

关 键 词:烧结NdFeB材料  片铸  氢爆碎  气流磨  制粉  磁性能

Effects of pulverization from strip casting alloy on the proporties of NdFeB magnet materials
DENG Sheng-xian,ZHAO Dao-wen,CHEN Ming,ZHANG Ming-jie,TANG Jie.Effects of pulverization from strip casting alloy on the proporties of NdFeB magnet materials[J].Journal of Magnetic Materials and Devices,2012(2):60-62,76.
Authors:DENG Sheng-xian  ZHAO Dao-wen  CHEN Ming  ZHANG Ming-jie  TANG Jie
Affiliation:1.Southwest Institute of Applied Magnetics,Mianyang 621000,China; 2.Yantai Zhenghai Magnetic Material Co,Ltd,Yantai 264006,China; 3.College of Chemistry and Chemical Engineering,Mianyang Normal University,Mianyang 621000,China
Abstract:Different powders were made from the same stip casting alloys by mechanical crash followed by jet milling and hydrogen decrepitation followed by jet milling separately,and sintered NdFeB magnets were prepared from these powders by magnetic field molding,vacuum sintering and heat-treatment.Comparative analysis was made on the microstructure and magnetic properties of samples prepared from the two kinds of powder.The result showed that,the magnetic properties of magnet from powder by HD followed by jet milling is higher than that by mechanical crash followed by jet milling.
Keywords:sintered NdFeB materials  strip casting  hydrogen decrepitation  jet milling  pulverization  magnetic properties
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