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. Key words: bonded NdFeB magnets; cathode electrophoretic technology; layer thickness; technological parameters 1 Introduction Nd-Fe-B bonded magnets play an important role in modern technologies... resistance. The bonded NdFeB magnet is composed of magnetic powders and polymer resin, which are mixed and pressed into bulk materials with designed shapes. Bonded magnets have some shortcomings......
action in bonded hybrid magnets, based on NdFeB and strontium ferrite powders were investigated. The long-range magnetostatic interaction and short-range exchange coupling interaction existed...Magnetic Properties and Intergranular Action in Bonded Hybrid Magnets Li Shandong1,Du Youwei1,Han Zhida1,Zhong Wei1,Zhang Jianrong1,Hua Zhenghe1,Wang Dunhui1,Lu Mu1,Gu Benxi1 (1.National Laboratory......
Investigation on the Moldability of HDDR NdFeB Bonded Magnet Prepared by Compression Molding Method 张正义1,韩景智1,李涛1,肖耀福1,李智伟2,孙爱芝1 (1.Department of Materials, University of Science and Technology... bonded magnets with complicated shape or with large geometric size by compression molding due to the friction among magnetic powder grains and between magnetic powder and the die wall, which reduces......
] 段柏华, 曲选辉, 李云平. 注射成形粘结NdFeB磁体:工艺·性能·应用 [J].磁性材料及器件, 2003, 34(4): 36-39. DUAN Bo-hua, QU Xuan-hui, LI Yun-ping. Technologies, properties and applications of bonded NdFeB magnets by injection molding [J...(2): 9-12. ZHANG Hong, BAI Shu-xin. The coupling agents used in bonded NdFeB magnets [J]. Journal of Magnetic Material and Devices, 2001, 32(2): 9-12. [10] van Ooij W J, Child T. Protecting metals......
Study on Compound Effect of Bonded Magnets Lian Fazeng1,MA Nuo2,Chang Ying2,Liu Changsheng1,YU Xiaojun2,Li Wei2 (1.School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China;2.Department of Functional Materials, Central Iron & Steel Research Institute, Beijing 100081, China) Abstract:The compound effect of Nd2Fe14B/Fe3B-Ferrite bonded magnets was studied.The result......
Magnetic Properties and Intergranular Action in Bonded Hybrid Magnets华正和,李山东,韩志达,王敦辉,钟伟,顾本喜,鹿牧,章建荣,都有为摘 要:Magnetic properties and intergranular action in bonded hybrid magnets,based on NdFeB and strontium ferrite powders were investigated.The long-range magnetostatic interaction and short-range exchange coupling interaction existed simultaneously......
, Herchenroeder J W, Smith B, et al. Recent development in bonded NdFeB magnets[J]. Journal of Magnetism and Magnetic Materials, 2002, 239: 418-423. [13]Takeshita T, Morimoto K. Anisotropic Nd-Fe-B bonded...理的SPS NdFeB永磁材料的SEM像 Fig.1 SEM images of SPS NdFeB permanent magnets sintered at different temperatures after heat treatment at 1050℃ 960℃烧结时, 主相晶粒均匀合适, 孔洞和颗粒状富钕相较少, 组织致密, 此温度为最佳的烧结温度. 980℃烧结......
The Effect of HDDR Process on Magnetic Properties in NdFeB Type of Bonded Magnets张正义,肖耀福,裘宝琴,董明摘 要:<正> The present paper describes the effect of alloy composition,homogenization anddehy-drogenization procedures on magnetic properties of NdFeB type of HDDR powders and the bondedmagnet.The results showed that the powders prepared by HDDR process......
Research of warm compaction technology on nylon bonded Nd-Fe-B magnets Xiuhai ZHANG1,Dameng YE1,Jun QU1,Zhenhua YAO1,Weihao XIONG1 (1.State Key Laboratory of Material Processing and Die & Mould Technology,Huazhong University of Science and Technology,Wuhan 430074,China) Abstract:Warm compaction and room temperature compaction were applied to prepare bonded Nd-Fe-B magnets. The results......
Study on Key Techniques for Producing High Performance NdFeB Sintered Permanent Magnets 李红卫1,张深根1,张耀1,徐静1,于敦波1,赵进松1 (1.General Research Institute for Non-Ferrous Metals,Grirem Advanced Materials Corporation Limited,Beijing 100088,China) Abstract:High energy products (BH)max of 365 and 310 kJ·m-3 with intrinsic coercivity iHc of 1640 kA·m-1 of NdFeB sintered magnets were produced. Some new......