CAJ | 학술논문

通过对带绕非晶态软磁合金磁芯片间绝缘技术的几种方法、磁场热处理技术以及绝缘封装技术的研究,实现了非晶态磁芯片间0.6～1.0 μm厚 SiO_2绝缘涂层以及片间击穿电压不低于120 V直流;非晶态磁芯纵磁热处理剩磁比大于0.90,横磁热处理剩磁比小于0.20,且绝缘封装前后磁芯磁性能变化小于5%.通过对快脉冲条件下带绝缘涂层大尺寸带绕非晶态软磁合金磁芯的研究,测试获得了试验磁芯的脉冲磁导率以及磁通跳变,其中1 000 mm级铁基非晶磁芯在脉冲间隔500 ns、脉冲宽度120 ns三脉冲串条件下,磁通跳变达到了2.86 T.
통과대대요비정태연자합금자심편간절연기술적궤충방법、자장열처리기술이급절연봉장기술적연구,실현료비정태자심편간0.6～1.0 μm후 SiO_2절연도층이급편간격천전압불저우120 V직류;비정태자심종자열처리잉자비대우0.90,횡자열처리잉자비소우0.20,차절연봉장전후자심자성능변화소우5%.통과대쾌맥충조건하대절연도층대척촌대요비정태연자합금자심적연구,측시획득료시험자심적맥충자도솔이급자통도변,기중1 000 mm급철기비정자심재맥충간격500 ns、맥충관도120 ns삼맥충천조건하,자통도변체도료2.86 T.
This paper describes the research progress of manufacturing technology for amorphous cores, including layer insulation, magnetic field annealing and encapsulation technology. The results show as follows: (1) for the amorphous ribbon surface is coated with 0.6～1.0 μm thick SiO_2 insulation, the breakdown voltage is no less than 120 V DC between ribbon layers;(2) through magnetic field annealing, the remanence ratio is larger than 0.90 or less than 0.20 for longitudinal or latitudinal field, respectively, and the amorphous core magnetic property varies within 5% after encapsulation. Through experiments on big amorphous cores with layer insulation under fast-pulsed condition, the pulsed permeability and flux swing were obtained. The flux swing of the Fe-based amorphous core of 1 000 mm outer diameter reaches 2.86 T, under a three-pulse series of 120 ns pulse duration and 500 ns pulse separation.