Study of Technology of Stripping Nickel Coating on NdFeB Permanent Magnet
来源期刊：JOURNAL OF RARE EARTHS2004年增刊第1期
论文作者：Rao Houzeng Jiang Longfa LI Guohua Lin Guanjie
Key words：NdFeB permanent magnet base; stripping; nickel coating; reagent of retarding corrosion; calatyze;
Abstract: The influences of category and density of reagents, temperature and the value of pH in the solution of stripping the nickel coating on NdFeB permanent magnet on the stripping result were studied systematically.The practical formular contains mainly the oxidant m-O2NC6H4SO3Na, the complex reagent ( NaOOCCH2 ) 2N( CH2 ) 2N( CH2COOH)2,the reagent of retarding corrosion KF and the calatyze RL-3 was obtained.
Rao Houzeng1，Jiang Longfa1，LI Guohua2，Lin Guanjie1
(1.Department of Environmental and Chemical Engineering, Nanchang Institute of Aeronautical Technology,Nanchang 330034, China;
2.Jiangxi Hengda Group ,Nanchang 330029, China)
Abstract:The influences of category and density of reagents, temperature and the value of pH in the solution of stripping the nickel coating on NdFeB permanent magnet on the stripping result were studied systematically.The practical formular contains mainly the oxidant m-O2NC6H4SO3Na, the complex reagent ( NaOOCCH2 ) 2N( CH2 ) 2N( CH2COOH)2,the reagent of retarding corrosion KF and the calatyze RL-3 was obtained.
Key words:NdFeB permanent magnet base; stripping; nickel coating; reagent of retarding corrosion; calatyze;
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