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基于Magnet的直流电磁铁的优化设计高彩霞1,王福忠1,焦留成21. 河南理工大学电气工程与自动化学院2. 河南师范大学物理与信息工程学院摘 要:针对直流电磁铁因形状特殊且不规则,磁性材料的非线性与分布性而导致电磁铁设计方法不完善,设计精度低的问题,提出了一种基于Magnet的直流电磁铁的优化设计方法,重点分析了直流电磁铁的初步设计,包括设计要求,直流电磁铁的结构设计及线圈设计,以及基于Magnet有限元分析软件的直流电磁铁的优化设计,包括线圈骨架材料的确定,端盖尺寸的优化,气隙长度的优化等.试验结果表明,应用该方法优化设计的直流电磁铁具有启动电流小,动作迅速,可靠性和耐用性高等特点.关键词:直流电磁铁;优化设计;初步设计;Magnet;有限元分析;......
permanent magnet; annealing treatment; precipitate; cellular structure Foundation item: Project(51574293) supported by the National Natural Science Foundation of China; Project (2016cx04) supported... magnets[J]. Journal of Applied Physics, 2015, 117(17): 17C704. [3] 李 卫, 朱明刚. 高性能稀土永磁材料及其关键制备技术[J]. 中国有色金属学报, 2004, 14(1): 332-336. LI Wei, ZHU Ming-gang. High property rare-earth permanent magnetic......
Permanent deformation response parameters of asphalt mixtures for a new mix-confined repeated load testLIAO Gong-yun(廖公云)1, YANG Yi-wen(杨毅文)2, HUANG Xiao-ming(黄晓明)1, XIANG Jin-yuan(向晋源)3(1. School... of permanent deformation response parameters based on field extracted cores and lab-mixed duplicates. A new "mix-confined" test is developed and four new parameters for this test are proposed. Correlation......
水溶性缓蚀剂对钕铁硼永磁材料的防腐蚀性能 娄桂艳1,孟瑶2,李广宇2 (1.沈阳工业大学理学院,辽宁,沈阳,110023;2.沈阳理工大学环境与化学工程学院,辽宁,沈阳,110168) 摘要:采用叠片腐蚀试验方法评定了无机盐型,脂肪酸型,硼酸胺型和膦酸酯型等4类9种水溶性缓蚀剂在水性环境中对钕铁硼永磁材料防腐蚀性能的影响.通过扫描电子显微镜(SEM)和能量色散谱(EDS)观察了金属表面形态及元素分布.结果显示,无机盐型,硼酸胺型和膦酸酯型缓蚀剂对钕铁硼永磁材料均无明显的缓蚀作用,而脂肪酸型缓蚀剂对钕铁硼永磁材料有一定的缓蚀作用,其中以双十一酸(DC11)的防腐蚀效果最为突出,并且随着缓蚀剂浓度的增大,防腐蚀性能逐渐提高. 关键词:缓蚀剂; 钕铁硼永磁材料; 防腐蚀性能; inhibitor; NdFeB permanent magnet; corrosion behavior......
Recycle for Sludge Scrap of Nd-Fe-B Sintered Magnet as Isotropic Bonded Magnet Masahiro Masuda1,Shunji Suzuki1,Masahiro Itoh1,Ken-ichi Machida1 (1.Collaborative Research Center for Advanced Science..., Hcj=~0.79 mA·m-1, and(BH)max=~86 kJ·m-3). Key words:Nd-Fe-B sintered magnet; recycling; isotropic Nd-Fe-B bonded magnet; melt-spinning method; sludge scrap; rare earths; [全文内容正在添加中] ......
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; 文章编号:1672-7207(2013)08-3223-08 Constant power control in direct drive permanent magnet wind power system TAN Xunqiong1, 2, WU Zhengqiu2, YAN Xinguan2, CHENG Bo2, LI Junjun2 (1...-controlled direct drive permanent magnet wind power system(DDPGWPS) respectively through a full-wave rectifier + BOOST-CHOPPER and the PWM rectifier based on feed-forward decoupling. The PMW rectifies......
纳米复合永磁多层膜的研究现状 王丽1,李远会1,马瑞1,卢斌2,万明攀1 (1.贵州大学材料与冶金学院,贵阳,550003;2.中南大学材料科学与工程学院,长沙,410083) 摘要:纳米复合永磁材料由于其潜在的优异磁性能和商业价值,成为当今磁性材料领域的研究热点.就近几年来纳米复合永磁多层膜的发展状况,简要介绍了其制备技术,交换耦合作用,反磁化以及各向异性的研究. 关键词:纳米复合永磁多层膜; 制备工艺; 交换耦合; 反磁化; 各向异性; nanocomposite multilayer permanent magnet; preparation methods; exchange coupling; magnetic reversal; anisotropy; [全文内容正在添加中] ......
and kinetical analysis of Sm2Co17 based permanent rare-earth magnets LI Li-ya, YI Jian-hong, HUANG Bai-yun, PENG Yuan-dong (State Key Laboratory of Powder Metallurgy, Central South University... is related to the temperature decreasing rate and diffusion coefficient, and the diffusion length of Cu is the main factor, respectively. The microstructure of Sm2Co17-based rare-earth permanent magnets......
; 退磁曲线; nanocomposite magnets; microstructure; permanent magnet; demagnetization curve; [全文内容正在添加中] ......
