磁体

Using modified conventional powder metallurgy process for sintered Nd-Fe-B magnets , including annealing of ingot alloy, hydrogen decrepitating, modified jet mill and adding additive during jet milling, we have mass-produced high performance and high corrosion resistance sintered Nd-Fe-B magnets from a conventional ingot alloy without strict protections against oxidation.

利用改进的传统粉末冶金工艺(铸锭热处理、氢爆、改进型气流磨设备以及在气流磨中掺入添加剂等)，在无严格的防氧保护情况下，从传统合金铸锭出发，工业化生产出具有高耐蚀性的N48～50档烧结Nd-Fe-B 磁体。

Considering these problems, we studied systematically HD process of NdFeB, the oxidation of HD powders and their degassed powders, and the effects of hydrogen on milling, aligning and sintering.

烧结NdFeB系永磁材料在当前工业生产中获得了广泛的应用，而氢破碎作为一种粗破碎手段，由于具有生产周期短、生产成本低和可提高磁体性能等优点而获得了广泛关注。

In a open circuit,the ratio of length to diameter at least should be 4:1, if the ratio is too small, the magnet will be easily demagnetized.

较短的磁体在开路环境下工作，其磁性能将会十分不稳定，较容易退磁。

Rotor loss reduces the power efficiency and demagnetizes the magnets.

转子涡流损耗使电机的效率下降并能引起转子永磁体的退磁。

Meanwhile, the article discusses the methods of magnetizing and demagnetizing the permanent magnet by the pulse of strong current ,which is produced through the discharging of the capacitance in a second order circuit which is made up of RLC in series.

介绍了永磁起重吸盘的工作原理及相对于传统电磁铁的节能、省材、廉价、安全等特点，讨论了应用电容储能经 RL C串联二阶电路放电产生的强电流脉冲对永磁体进行充、退磁的方法及涡流问题，给出了一种控制电路及实验结

An adiabatic system is designed to obtain the cooled circulating condition for the superconducting magnet. The system is comprised of vacuum adiabatic mti1ayer, copper thermal shield, snake vent-pipe and so on, which elided the complicated frame of liquid nitrogen thermal shield outside of the inner-cryostat, simplified technical structures, and achieved favorable adiabatic effect.

为了获得有效的超导磁体运行的低温环境，研制了一套采用真空多层绝热、铜辐射冷屏、蛇形排气管结构形式的绝热系统，省去了传统的在内杜瓦外面添加液氮屏的结构，简化了工艺结构，操作方便，绝热效果良好。

With electrical products becoming miniaturized,it is more difficult to measure the magnetic field caused by permanent magnets in them.

随着电工产品的小型化、微型化，对其所含的永磁体进行磁场测量的难度增大。

It is also found thatthe magnetic field can orients the Nd2Fe14B grain.

磁场热处理能加强磁性相之间的耦合，从而提高磁体的矯顽力和剩磁比。

Our earth is a huge magnet, with its own North and South Poles.

我们的地球是一个巨大的磁体，有自己的南北极。

During the research and fabrication, many problems encountered, especially principle tests, design of mechatronics system, synchronal control between press (cross-section correction) feeding and preforming/bending feeding and damped oscillation have been solved.

利用绕线机这套硬件设备和CICC超导磁体绕制技术的研究成果，发展了复杂截面铠装超导缆导体线圈的无张力绕制技术；确定了D形线圈的绕制工艺和NC控制程序，最终高质量地完成了复杂D形截面CICC纵场试验线圈的研制。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。