电声领域用稀土永磁体表面防护技术的研究
Study on the Binding Force of Permanent Magnetic Material Matrix and Galvanized Layer
刘晓旭 1张友亮 2孔令凯 1许卫1
作者信息
- 1. 安泰科技股份有限公司,北京 100083
- 2. 安泰爱科科技有限公司,山东 淄博 255022
- 折叠
摘要
稀土永磁材料表面防护镀层与材料基体之间的结合力效果,影响镀层的防腐能力,严重时可使材料的性能失效;特别针对小规格产品,因镀层与基体结合力异常,直接导致材料报废.文献检索发现,对改善镀层与基体结合力的方法报道很多,多数通过优化前处理工艺来达到结合力要求.本文通过工艺对比,优化前处理方式,采用双层锌工艺,研究了电声领域用稀土永磁体表面防护技术.本实验得出在前处理酸洗液中加入适量的缓蚀剂,并控制适应的温度,可保证镀层与稀土永磁材料基体之间的结合力良好,满足实际生产的要求.
Abstract
The binding force between the surface protective coating and the substrate of the rare earth permanent magnet material affects the anti-corrosion ability of the coating,and can make the performance of the material fail in serious cases.Especially for small size products,due to abnormal binding force between coating and substrate,it directly leads to material scrap.According to the literature search,many methods have been reported to improve the binding force between coating and substrate,and most of them meet the binding force requirements by optimizing the pretreatment process.In this paper,the surface protection technology of rare earth permanent magnet used in electroacoustic field is studied by comparing the process,optimizing the pretreatment method and adopting double zinc process.The experiment shows that the binding force between the coating and the rare-earth permanent magnet material substrate can be ensured by adding appropriate amount of corrosion inhibitor to the pre-treated acid-washing solution and controlling the suitable temperature,which can meet the actual production requirements.
关键词
永磁材料/结合力/电声领域/双层锌Key words
permanent magnet material/binding force/electroacoustic field/zinc bilayer引用本文复制引用
出版年
2024
NETL
NSTL
万方数据