| Fe-Si-Al复合磁粉芯制备工艺的研究 |
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| 引用本文： | 李庆达,连法增,尤俊华,孙陨,陈玉兰.Fe-Si-Al复合磁粉芯制备工艺的研究[J].材料工程,2011(2):65-68. |
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| 作者姓名： | 李庆达 连法增 尤俊华 孙陨 陈玉兰 |
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| 作者单位： | 李庆达,连法增,孙陨,LI Qing-da,LIAN Fa-zeng,SUN Yun(东北大学,材料各向异性与织构教育部重点实验室,沈阳,110004);尤俊华,YOU Jun-hua(沈阳工业大学,材料科学与工程学院,沈阳,110023);陈玉兰,CHEN Yu-lan(梅州磁性材料厂,广东,梅州,514031) |
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| 基金项目： | 长江学者和创新团队发展计划项目，广东省教育部产学研结合专项基金 |
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| 摘 要： | 模压成型制备Fe-Si-Al复合磁粉芯,研究了热处理条件及绝缘包覆处理对复合磁粉芯磁性能的影响.实验结果表明:压制后的退火处理能够有效地提高Fe-Si-Al磁粉芯的磁性能;增加退火温度能够提高样品的有效磁导率,减少磁滞损耗;过高的退火温度(＞660℃) 能够恶化粒子间的绝缘层,降低磁特性;Fe-Si-Al磁粉芯的最佳退...
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| 关 键 词： | 磁粉芯 损耗 退火 复数磁导率 |
Study on Preparing Process of Fe-Si-Al Composite Magnetic Powder Cores |
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| LI Qing-da,LIAN Fa-zeng,YOU Jun-hua,SUN Yun,CHEN Yu-lan.Study on Preparing Process of Fe-Si-Al Composite Magnetic Powder Cores[J].Journal of Materials Engineering,2011(2):65-68. |
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| Authors: | LI Qing-da LIAN Fa-zeng YOU Jun-hua SUN Yun CHEN Yu-lan |
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| Affiliation: | 1 Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education),Northeastern University,Shenyang 110004,China;2 School of Materials Science and Engineering,Shenyang University of Technology,Shenyang 110023,China;3 Meizhou Magnetic Material Factory,Meizhou 514031,Guangdong,China) |
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| Abstract: | Fe-Si-Al composite magnetic powder core was prepared by compression molding,and the effect of the annealing condition and insulation coating on magnetic properties of composite magnetic powder core was studied.Such results are concluded from experiment.Annealing following compaction could effectively promote magnetic properties of Fe-Si-Al magnetic cores.Increasing annealing temperature increases effective permeability and decreases hysteresis loss of specimens,and over-annealing(>660℃) could degrade the insulation between powder particles and deteriorate magnetic properties.The optimum annealing temperature is 660℃.The magnetic annealing is a new effective method that decreases loss of Fe-Si-Al magnetic powder core,and the loss of magnetic powder cores in the magnetic annealing is smaller than one in annealing.Increasing dielectric content could effectively reduce eddy current loss of Fe-Si-Al magnetic powder core and bring negative influence of decreasing the real part of permeability.The optimum dielectric content is 0.7%(mass fraction). |
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| Keywords: | magnetic powder core loss annealing complex magnetic permeability |
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