【24h】

Application of Magnetic Field in Fabrication Process of Anisotropic Bonded Nd-Fe-B Magnet

机译:磁场在各向异性粘结钕铁硼磁体制造过程中的应用

获取原文
获取原文并翻译 | 示例

摘要

This work studied the application of the different magnetic field used in the compaction process for the fabrication of anisotropic Nd-Fe-B bonded magnet. The static field made from Nd-Fe-B permanent magnets was used in the blending process to separate the particles each other. The SEM observation gave intuitionistic results about it. The anisotropic Nd-Fe-B bonded magnets were fabricated with warm-compaction under the electromagnetic field about 2.5 T. It is known that magnetic field is necessary for anisotropic materials fabrication for alignment. And warm compaction was used to decrease the viscousness of binder, to enhance alignment magnetic particle while press, and to get high density materials. For coercivity of Nd-Fe-B magnets decrease largely with the temperature increasing, press in proper temperature and oriented field is benefit to the magnetic characteristics and the mechanical properties of the anisotropic bonded Nd-Fe-B magnets. Finally solidifying process was performed under the pulse field of 4 T. The increment for solidifying in the field was about 15% for maximum energy product of the bonded magnet. The magnetic properties of anisotropic bonded Nd-Fe-B magnets from d-HDDR powders compact at 90 ℃ in alignment field of 2.5 T were: Br=8.55 kGs, iHc= 12.0 kOe, (BH)max=14.57 MGOe.
机译:这项工作研究了压实过程中使用的不同磁场在各向异性Nd-Fe-B粘结磁体制造中的应用。在混合过程中,使用Nd-Fe-B永磁体制成的静态磁场将颗粒彼此分离。 SEM的观察给出了直观的结果。各向异性Nd-Fe-B粘结磁体是在约2.5 T的电磁场下通过热压制成的。众所周知,磁场对于各向异性材料的制造是必需的。然后使用热压实来降低粘合剂的粘性,在压制时增强取向磁性颗粒,并获得高密度材料。由于Nd-Fe-B磁体的矫顽力随温度的升高而大大降低,因此在适当的温度下压制和定向磁场有利于各向异性粘结Nd-Fe-B磁体的磁特性和机械性能。最后,在4 T的脉冲场下进行固化过程。对于粘结磁体的最大能量积,在该场中的固化增量约为15%。 d-HDDR粉末在90℃压缩2.5 T取向场时得到的各向异性粘结Nd-Fe-B磁体的磁性为:Br = 8.55 kGs,iHc = 12.0 kOe,(BH)max = 14.57 MGOe。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号