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題 名 | 磷化處理與退火溫度對壓粉磁蕊磁性質之影響=The Influence of Phosphate Treatment and Annealing Temperature on the Magnetic Properties of Compressed Powder Cores |
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作 者 | 林寬泓; 謝定洲; 林舜天; | 書刊名 | 東南學報 |
卷 期 | 35 2010.07[民99.07] |
頁 次 | 頁37-44 |
分類號 | 440.35 |
關鍵詞 | 磷化處理; 壓粉磁蕊; 磁通密度; 鐵損; 渦電流損失; Compressed powder core; Phosphate treatment; Magnetic flux; Iron loss; Eddy current loss; |
語 文 | 中文(Chinese) |
中文摘要 | 摘 要 本研究先以磷化處理在鐵粉表面生成具有絕緣效果的Zn3(PO4)2皮膜,再將鐵粉壓 製成磁蕊。此絕緣皮膜使壓粉磁蕊具有高電阻率以及較佳的磁通密度,且能提高頻率 使用範圍並降低渦電流損失。壓粉磁蕊經退火處理後可提升磁通密度,但退火溫度超 過200℃時,由於黏結劑的損耗造成電阻率降低使得鐵損提升,並且導致交流導磁率下 降。磷化處理時間90秒、退火溫度200℃時,所製成之磁蕊具有高磁通密度,能量轉換 過程中鐵損最低。 |
英文摘要 | ABSTRACT The goals of this study are to achieve high magnetic fluxes and reduce total iron losses of pure iron powders coated with insulated layers. With a phosphate treatment, the structure of the insulated layer coated on iron particle surface was Zn3(PO4)2. It could not only maintain the magnetic fluxes of pure iron, but also enhance the electrical resistivity of compressed cores by reducing the eddy current loss, which allows a wider frequency range of applications. In addition, annealing treatment after compression could raise magnetic fluxes, but an annealing temperature higher than 200℃ caused the decomposition of binder, resulting in decreased electrical resistivity. Experiment results indicate the best magnetic performances were achieved when a phosphate treatment of 90 sec and an annealing temperature of 200℃. |
本系統中英文摘要資訊取自各篇刊載內容。