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ndfeb
相关语句
  nd-fe-b
     Relation of the Coercivity with the Grain Alignment Degree in Nd-Fe-B Sintermagnets
     Relation of the Coercivity with the Grain Alignment Degree in Nd-Fe-B Sintermagnets
短句来源
     Study of 2-14- 1 Phase and Nd_2(Fe,Co)_(14) B in Nd -Fe-B Alloy
     Nd-Fe-B合金中2-14-1相和Nd_2(Fe,Co)_(14)B的研究
短句来源
     Effect of Oxygen Content of Nd-Fe-B Permanent Magnets Doping Dy_2O_3 on Magnetic Properties
     掺杂Dy_2O_3Nd-Fe-B磁体的氧含量对磁性能的影响
短句来源
     Nanocrystalline Nd-Fe-B Base Alloys by Rapid Quenching
     熔体快淬纳来晶Nd-Fe-B基永磁合金
短句来源
     DEVELOPMENT TREND AND TACTICS OF Nd-Fe-B PERMANENT MAGNETIC MATERIAL
     Nd-Fe-B永磁材料发展趋势及对策
短句来源
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  nd fe b
     We introduced the structure and the intrinsic property of Nd 2Fe 14 B phase and analyzed the microstructure and intergrain interaction for Nd Fe B permanents.
     本文介绍了Nd2Fe14B相的晶格结构及内禀磁性,概述了Nd-Fe-B永磁体的微结构和晶粒相互作用。
短句来源
     Finally,the elevated temperature stabilities of the Nd Fe B magnets were discussed.
     最后讨论了Nd-Fe-B磁体的高温稳定性。
短句来源
     The corrosion behavior in enviromental corrosion test and influence of corrosion on magnetic properties of Nd Fe B alloy were studied.
     研究了在环境腐蚀试验条件下Nd-Fe-B合金的腐蚀行为及腐蚀对其磁性能的影响,并提出了防止腐蚀的表面处理方法。
短句来源
     This paper described the requirements for the microstructure and phase constituents of high property Nd Fe B sinterecl magnets in brief,and summarized the effects of various factors such as added elements,the size and degree of alignment of magnetic powders and grains,and oxygen content,on the magnetic properties of Nd Fe B sintered magnets.
     简述了高性能Nd-Fe-B烧结磁体对微结构和相组成的要求; 综述了各种因素(添加元素、磁粉和晶粒的粒度、定向度、含氧量)对Nd-Fe-B烧结磁体的影响;
短句来源
     The preparing technology of bonded Nd Fe B magnets is summarized. The current status of development,production and application market is also introduced.
     本文概述了钕铁硼(Nd-Fe-B)粘结磁体的制备工艺,论述了Nd-Fe-B的开发现状,并就其生产状况及市场应用作了概述。
短句来源
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  “nd-fe-b”译为未确定词的双语例句
     STABILITY OF Nb-Fe-B PERMANENT MAGNETS
     Nd-Fe-B(系)永磁体的稳定性
短句来源
     The effects of composition and structure on corrosion behavior ofNd-Fe-B alloy have been studied.
     研究了Nd-Fe-B合金的组织与组成对其腐蚀行为的影响。
短句来源
     The sintering and the surface metal permeating of Nd--Fe--B alloy can be finished in one process by double-layer glowing cathode at the same time of finishing the product's sintering, a cerium thick layer of diffusion alloy which improves and increases the surface properties, has been formed on the surface of product.
     利用双层辉光离子渗金属技术可以一次性实现Nd-Fe-B合金压坯的烧结和表面渗金属处理,即在完成制品烧结的同时,在其表面形成一定厚度的合金扩散层,从而改善和提高制品的表面性能。
短句来源
     The thresholds of normal ears were 14.74±4.12 dB nHL on average,The thresholds of removed incus were 57.00±8.64 dB nHL on average. The thresholds of the impianted middle ears were 16.25±8.56 dB nHL.
     结果听力正常时的阈值平均为14.74±4.12dBnHL,在传导性聋时阈值平均为57.00±8.64dBnHL,当植入Nd-Fe-B人工中耳后阈值平均为16.25±8.56dBnHL,并且频率反应较宽,其范围在0.5~4.0kHz,基本覆盖整个语言频率范围,符合人耳听觉特征。
短句来源
     The anisotropic permanent magnetic composite consisting of HDDR-Nd-Fe-B,ferrite powder and plastic has been prepared,and their magnetic properties have been studied.
     采用高性能的各向异性HDDR-Nd-Fe-B磁粉和铁氧体磁粉与塑料复合,制成了各向异性粘结NdFeB/铁氧体复合永磁材料,研究了它们的磁性能。
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  ndfeb
The analyzing magnetic field is produced by two powerful (1 T) permanent NdFeB magnets instead of conventional electromagnets.
      
Nanostructure of the rapidly quenched magnetic alloy NdFeB
      
High-resolution field emission spectroscopy has been used to study the nanostructure of the NdFeB alloy.
      
Zwei CoSmoder NdFeB-Magnete wurden jeweils im Abstand von 10 mm in anziehender oder absto?ender Anordnung unter Kulturkammern fixiert.
      
The machine, with a cylindrical NdFeB magnet as main component, could swim in the oils with Re = 10-7.
      
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This paper surveys the brief developing history of permanent magnent (PM)motors,characteristic advantages,and describes their developing trends from thefacts that DC PM small motors will substitute wound field motors,REE systemshas extended the life of PM brush DC motors,the future direction will be thebrushless DC motors,development of a new generation of synchronous brushlessmotors——the Isosyn motor,the market of PM stepper motors will furthurextend,NdFeB PM motors will occupy the market of motors for...

This paper surveys the brief developing history of permanent magnent (PM)motors,characteristic advantages,and describes their developing trends from thefacts that DC PM small motors will substitute wound field motors,REE systemshas extended the life of PM brush DC motors,the future direction will be thebrushless DC motors,development of a new generation of synchronous brushlessmotors——the Isosyn motor,the market of PM stepper motors will furthurextend,NdFeB PM motors will occupy the market of motors for cars,etc.Thepaper also provides serveral suggestions according to the condition of ourcountry.

本文综述永磁电动机的发展简史、性能优点、并从永磁直流小电动机将要取代电激磁小电动机、REE系统延长了有刷永磁直流电动机的寿命、未来的方向——无刷直流电动机、新一代无刷同步电动机——Isosya电机的并发、永磁步进电动机的市场进一步扩大、钕铁硼永磁电动机将要夺取汽车电机的市场等几方面叙述其发展动向。文中还针对我国国情提出了几点建议。

By substituting low purity neodymium for the high purity one, NdFeB permanent magnets of (BH)max=41 MGOe were prepared by powder metallurgy. Several properties of NdFeB alloys were measured by means of x-ray diffraction, the differential thermal analyzer, magnetic balance, extracting sample magnetometer and pulse high magnetic field apparatus respectively. The results show that there is a peak of phase transition at 1439K, and the abnormal phenomenon on the magnetic hysteresis loop at low temperature...

By substituting low purity neodymium for the high purity one, NdFeB permanent magnets of (BH)max=41 MGOe were prepared by powder metallurgy. Several properties of NdFeB alloys were measured by means of x-ray diffraction, the differential thermal analyzer, magnetic balance, extracting sample magnetometer and pulse high magnetic field apparatus respectively. The results show that there is a peak of phase transition at 1439K, and the abnormal phenomenon on the magnetic hysteresis loop at low temperature originates from the conical magneto-crystalline anisotropy of the major phase Nd2Fe14 in the NdFeB alloys.

选用廉价低纯度钕稀土取代高纯度金属钕,用粉末冶金法制备了Nd-Fe-B永磁体.样品最大磁能积(BH)_(max)达41MGOe(0.328MT·A/m).使用X射线衍射仪、差热分析仪、磁天平、提拉样品磁强计和脉冲强磁场等实验方法,对Nd-Fe-B合金进行了分析测量.在1400K附近有相变峰.低温下,Nd-Fe-B合金磁滞回线呈现异常,来源于磁体中Nd_2Fe_(14)B主相锥面型各向异性.

A ferrofluid sealing system of high pressure-resistant capacity is researched experimentally.A NdFeB permanent magnet is used to be a source of the magnetic field and the sealing medium is BH-1 ferrofluid made at BUAA.The experiments described in this paper show that the sealing system with a single stage on each side of the permanent magnet is able to resist 120~180kPa of pressure drop and with a double stage——225~370kPa.The experiments done by the authors predict that the sealing capacity of this system...

A ferrofluid sealing system of high pressure-resistant capacity is researched experimentally.A NdFeB permanent magnet is used to be a source of the magnetic field and the sealing medium is BH-1 ferrofluid made at BUAA.The experiments described in this paper show that the sealing system with a single stage on each side of the permanent magnet is able to resist 120~180kPa of pressure drop and with a double stage——225~370kPa.The experiments done by the authors predict that the sealing capacity of this system can be raised further.

一种高性能的铁磁流体密封系统,采用钕铁硼(NdFeB)永磁体作为磁场源,密封介质则使用北京航空航天大学研制的BH-1铁磁流体。实验结果表明,对于每边磁极靴上具有一道密封级的结构,可以提供120~180kPa的耐压能力;而每边具有两道密封级,则可以达到225~370kPa。并且实验预示这种系统的密封耐压能力还有进一步提高的潜力。

 
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