Cathode electrophoretic technology for bonded NdFeB permanent magnet

The bonded NdFeB permanent magnet was painted by cathode electrophoretic technology. The effect of technological parameters on the thickness of the layer was researched. The optimum voltage, time, electrophoresis temperature, area-ratio and spacing between cathode and anode are 220-250 V, 2-3 min, 2...

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Bibliographic Details
Published in:Transactions of Nonferrous Metals Society of China 2006-09, Vol.16 (A02), p.93-96
Main Author: 陈刚 杨小玲 高淡英 倪建森 徐晖 周邦新
Format: Article
Language:English
Subjects:
NdFeB永久磁铁
工艺参数
粘合磁体
阴极电泳
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Summary:The bonded NdFeB permanent magnet was painted by cathode electrophoretic technology. The effect of technological parameters on the thickness of the layer was researched. The optimum voltage, time, electrophoresis temperature, area-ratio and spacing between cathode and anode are 220-250 V, 2-3 min, 25-32℃, 7-10 cm and （2-4）：1, respectively. After treated under optimum conditions, the excellent corrosion resistance of the bonded magnet is achieved, with temperature and humidity resistant time of 468 h, brine-fast resistant time of 48 h. The cathode electrophoretic technology and treating process were successfully applied to produce bonded magnets with mass capacity of tens of million pieces per year.
ISSN:1003-6326