整形处理工艺对Fe_(78)Si_9B_(13)非晶粉末及磁粉芯性能的影响
|
摘要
本实验采用机械搅拌整形工艺对Fe_(78)Si_9B_(13)非晶带材破碎粉末进行去边角的整形处理。研究了机械整形时间和混料机转速对Fe_(78)Si_9B_(13)非晶粉末的基本物理性能(粉末形貌、松比、流动性),以及由其制备的磁粉芯的有效磁导率、高频特性、直流叠加特性、损耗等磁性能的影响。结果表明:随着整形时间的增加,整形处理后的非晶粉末粒径逐渐细化,粉末粒度范围由75～175μm逐渐变为50～100μm,粉末尖角变圆滑,粉末的流动性由未经整形处理的31.43 s/50 g逐渐变为整形处理5 h的25.08 s/50 g,之后5～30 h基本趋于平稳,粉末的松比从0 h的3.028 g·cm~(-3)到30 h的3.124 g·cm~(-3)呈现一个小幅上升趋势,磁粉芯的有效磁导率呈先上升后下降的趋势、损耗逐渐降低,受直流叠加的影响变小;混料机转速对粉末形貌及粒径的影响幅度较小,并且随着转速的增加,粉芯的有效磁导率基本不变,损耗降低。本实验无论是时间参数还是转速参数都未改变非晶磁粉芯本身优秀的高频特性和直流叠加特性。
The broken powder of Fe_(78)Si_9B_(13) amorphous strip was handled with a kind of mechanical agitation and shaping process. The effect of shaping time and rotation speed on the basic physical properties(powder morphology, bulk density, fluidity) of Fe_(78)Si_9B_(13) amorphous powder, as well as the effective permeability, high frequency characteristic, direct current(DC) superposition characteristic and core loss of the magnetic powder core were studied. The results showed that with the increase of shaping time, the grain size of the amorphous powder became smaller and the particle size range of the powder was gradually changed from 75～175 μm to 50～100 μm, the closed angles became smooth, the fluidity of the powder gradually changed from 31.43 s/50 g without shaping to 25.08 s/50 g with shaping treatment for 5 h, and then tended to be stable from 5 to 30 h, the bulk density of the powder showed a slight upward trend from 3.028 g·cm~(-3) of 0 h to 3.124 g·cm~(-3) of 30 h, the effective permeability of the powder core firstly increased and then decreased, the core loss gradually decreased, as well as the influence of DC superposition. The influence of the rotation speed of the mixer on the morphology and particle size of the powder was small. With the increase of the speed, the effective permeability of the powder core was almost unchanged, and the core loss was reduced. In this experiment, the high frequency and DC superposition characteristics of the amorphous magnetic powder core were not changed with the time parameter and the speed parameter.
The broken powder of Fe_(78)Si_9B_(13) amorphous strip was handled with a kind of mechanical agitation and shaping process. The effect of shaping time and rotation speed on the basic physical properties(powder morphology, bulk density, fluidity) of Fe_(78)Si_9B_(13) amorphous powder, as well as the effective permeability, high frequency characteristic, direct current(DC) superposition characteristic and core loss of the magnetic powder core were studied. The results showed that with the increase of shaping time, the grain size of the amorphous powder became smaller and the particle size range of the powder was gradually changed from 75～175 μm to 50～100 μm, the closed angles became smooth, the fluidity of the powder gradually changed from 31.43 s/50 g without shaping to 25.08 s/50 g with shaping treatment for 5 h, and then tended to be stable from 5 to 30 h, the bulk density of the powder showed a slight upward trend from 3.028 g·cm~(-3) of 0 h to 3.124 g·cm~(-3) of 30 h, the effective permeability of the powder core firstly increased and then decreased, the core loss gradually decreased, as well as the influence of DC superposition. The influence of the rotation speed of the mixer on the morphology and particle size of the powder was small. With the increase of the speed, the effective permeability of the powder core was almost unchanged, and the core loss was reduced. In this experiment, the high frequency and DC superposition characteristics of the amorphous magnetic powder core were not changed with the time parameter and the speed parameter.
引文
[1] Klement W,Willens R H,Duwez P.Non-crystalline structure in solidified gold-silicon alloys [J].Nature,1960,187(31):869.
[2] Duwez P,Lin S C H.Formation of glasses from liquids and biopolymers [J].Journal of Applied Physics,1967,214(38):4096.
[3] Hasegawa R.Applications of amorphous magnetic alloys in electronic devices [J].Journal of Non-Crystalline Solids,2001,287(1):405.
[4] Zou C L,Geng G H,Liu L M,Zhang W R,Xue P H.Morphology and tensile strength of Ni-Zr-Ti based glassy fibers with different wheel speeds [J].Chinese Journal of Rare Metals,2017,41(6):714.(邹成路,耿桂宏,刘利盟,张蔚冉,薛鹏皓.辊轮转速对Ni-Zr-Ti基非晶纤维形貌及拉伸强度的影响 [J].稀有金属,2017,41(6):714.)
[5] Tang J,Lian F Z,Yu M,Fan X Y.Technology of Fe78Si9B13 amorphous magnetic powder core [J].Journal of Northeastern University (Natural Science),2012,33(3):373.(唐坚,连法增,于敏,范宪勇.Fe78Si9B13非晶磁粉芯工艺 [J].东北大学学报(自然科学版),2012,33(3):373.)
[6] Wang H J,Li A H,Zhu M G,Li W.Sintered Nd-Fe-B magnets with improved impact stability [J].Journal of Magnetism and Magnetic Materials,2006,307(2):268.
[7] Yue M,Zhang J X,Liu W Q,Wang G P.Chemical stability and microstructure of Nd-Fe-B magnet prepared by spark plasma sintering [J].Journal of Magnetism and Magnetic Materials,2004,271(2/3):364.
[8] David Brown,Ma B M,Chen Z M.Developments in the processing and properties of NdFeB-type permanent magnets [J].Journal of Magnetism and Magnetic Materials.2002,248(3):432.
[9] Zhang X H,Xiong W H,Li Y F,Song N.Effect of process on the magnetic and mechanical properties of Nd-Fe-B bonded magnets [J].Materials and Design,2009,30(4):1386.
[10] Tang S H,Wang H X,Wang Z J,Cui J Y,Wang X Y,Wang L J.Magnetic properties of amorphous Fe78Si9B13 powder prepared by ribbon crush and powder core using same [J].Metallic Functional Materials,2010,17(3):9.(唐书环,王红霞,王正杰,崔嘉义,王贤艳,王立军.带材破碎制备Fe78Si9B13非晶合金粉末及其磁粉芯性能 [J].金属功能材料,2010,17(3):9.)
[11] Wang H.Zirconium Silicate Powder Crushing Processing and Numerical Optimization [D].Guangzhou:South China University of Technology,2015.3.(王欢.硅酸锆粉体破碎加工工艺及其数值优化 [D].广州:华南理工大学,2015.3.)
[12] Yu M.Study on Preparation and Soft Magnetic Properties of Amorphous FeSiB Magnetic Powder Cores [D].Shenyang:Northeastern University,2011.31.(于敏.非晶FeSiB磁粉芯的制备及软磁性能研究 [D].沈阳:东北大学,2011.31.)
[13] Xu H,He K Y,Qiu Y Q,Wang Z J,Cheng L Z,Dong Y D,Xiao X S,Wang Q.Investigation of the magnetic properties of Fe(73.5)Cu13Nb1Si(13.5)B9 nanocrystalline dust core [J].Journal of Functional Materials,2000,31(1):42.(徐晖,何开元,丘俞青,王正杰,程力智,董远达,肖学山,王庆.纳米晶Fe(73.5)Cu13Nb1Si(13.5)B9磁粉芯的磁性能研究[J],功能材料,2000,31(1):42.)
[14] Hasegawa R.Present status of amorphous soft magnetic alloys [J].Journal of Magnetism and Magnetic Materials,2000,215(2):240.
[15] Li S H,Lu Z C ,Li D R,Zhou S X.Effect of magnetic field annealing on magnetic properties of Fe80Si9B11 amorphous metallic cores [J].Physics Examination and Testing,2008,26(3):18.(李山红,卢志超,李德仁,周少雄.磁场退火对Fe80Si9B11非晶合金铁芯磁性能的影响 [J].物理测试,2008,26(3):18.)
[16] Lian F Z.Physical Properties of Materials [M].Shenyang:Northeastern University Press,2005.70.(连法增.材料物理性能 [M].沈阳:东北大学出版社,2005.70.)
[2] Duwez P,Lin S C H.Formation of glasses from liquids and biopolymers [J].Journal of Applied Physics,1967,214(38):4096.
[3] Hasegawa R.Applications of amorphous magnetic alloys in electronic devices [J].Journal of Non-Crystalline Solids,2001,287(1):405.
[4] Zou C L,Geng G H,Liu L M,Zhang W R,Xue P H.Morphology and tensile strength of Ni-Zr-Ti based glassy fibers with different wheel speeds [J].Chinese Journal of Rare Metals,2017,41(6):714.(邹成路,耿桂宏,刘利盟,张蔚冉,薛鹏皓.辊轮转速对Ni-Zr-Ti基非晶纤维形貌及拉伸强度的影响 [J].稀有金属,2017,41(6):714.)
[5] Tang J,Lian F Z,Yu M,Fan X Y.Technology of Fe78Si9B13 amorphous magnetic powder core [J].Journal of Northeastern University (Natural Science),2012,33(3):373.(唐坚,连法增,于敏,范宪勇.Fe78Si9B13非晶磁粉芯工艺 [J].东北大学学报(自然科学版),2012,33(3):373.)
[6] Wang H J,Li A H,Zhu M G,Li W.Sintered Nd-Fe-B magnets with improved impact stability [J].Journal of Magnetism and Magnetic Materials,2006,307(2):268.
[7] Yue M,Zhang J X,Liu W Q,Wang G P.Chemical stability and microstructure of Nd-Fe-B magnet prepared by spark plasma sintering [J].Journal of Magnetism and Magnetic Materials,2004,271(2/3):364.
[8] David Brown,Ma B M,Chen Z M.Developments in the processing and properties of NdFeB-type permanent magnets [J].Journal of Magnetism and Magnetic Materials.2002,248(3):432.
[9] Zhang X H,Xiong W H,Li Y F,Song N.Effect of process on the magnetic and mechanical properties of Nd-Fe-B bonded magnets [J].Materials and Design,2009,30(4):1386.
[10] Tang S H,Wang H X,Wang Z J,Cui J Y,Wang X Y,Wang L J.Magnetic properties of amorphous Fe78Si9B13 powder prepared by ribbon crush and powder core using same [J].Metallic Functional Materials,2010,17(3):9.(唐书环,王红霞,王正杰,崔嘉义,王贤艳,王立军.带材破碎制备Fe78Si9B13非晶合金粉末及其磁粉芯性能 [J].金属功能材料,2010,17(3):9.)
[11] Wang H.Zirconium Silicate Powder Crushing Processing and Numerical Optimization [D].Guangzhou:South China University of Technology,2015.3.(王欢.硅酸锆粉体破碎加工工艺及其数值优化 [D].广州:华南理工大学,2015.3.)
[12] Yu M.Study on Preparation and Soft Magnetic Properties of Amorphous FeSiB Magnetic Powder Cores [D].Shenyang:Northeastern University,2011.31.(于敏.非晶FeSiB磁粉芯的制备及软磁性能研究 [D].沈阳:东北大学,2011.31.)
[13] Xu H,He K Y,Qiu Y Q,Wang Z J,Cheng L Z,Dong Y D,Xiao X S,Wang Q.Investigation of the magnetic properties of Fe(73.5)Cu13Nb1Si(13.5)B9 nanocrystalline dust core [J].Journal of Functional Materials,2000,31(1):42.(徐晖,何开元,丘俞青,王正杰,程力智,董远达,肖学山,王庆.纳米晶Fe(73.5)Cu13Nb1Si(13.5)B9磁粉芯的磁性能研究[J],功能材料,2000,31(1):42.)
[14] Hasegawa R.Present status of amorphous soft magnetic alloys [J].Journal of Magnetism and Magnetic Materials,2000,215(2):240.
[15] Li S H,Lu Z C ,Li D R,Zhou S X.Effect of magnetic field annealing on magnetic properties of Fe80Si9B11 amorphous metallic cores [J].Physics Examination and Testing,2008,26(3):18.(李山红,卢志超,李德仁,周少雄.磁场退火对Fe80Si9B11非晶合金铁芯磁性能的影响 [J].物理测试,2008,26(3):18.)
[16] Lian F Z.Physical Properties of Materials [M].Shenyang:Northeastern University Press,2005.70.(连法增.材料物理性能 [M].沈阳:东北大学出版社,2005.70.)