达可罗涂层技术应用于NdFeB永磁体表面防护的研究  

Dacromet: a New Surface Protection Coating Technology for NdFeB Permanent Magnets

作　　者：吴秀珍[1] 

机构地区：[1]中国电子科技集团公司第三十三研究所,山西太原030006

出　　处：《磁性材料及器件》2005年第2期26-28,共3页Journal of Magnetic Materials and Devices

摘　　要：介绍了一种用于NdFeB永磁体表面防护的新型达可罗(Dacromet)涂层技术。该技术最突出的优点是无环境污染,涂层耐蚀和耐氢脆性能优异。通过正交试验得出了最佳工艺参数。测试了达克罗涂层的结合力和耐蚀性,并和电镀锌、化学镀Ni-P进行了比较。结果表明,达克罗用于NdFeB永磁体表面防护的效果很好,明显优于电镀锌和化学镀Ni-P。A new protection coating for NdFeB magnets—Dacromet (Zn-coating) is introduced, which features no-environmental pollution, hydrogen brittleness and corrosion-resistance. The optimum technological parameters of Dacromet coating bath have been determined through orthogonal experiment. The anti-corrosion characteristics of Dacromet was tested and compared with that of Zn-electroplating and electroless Ni-P. The results show that Dacromet coating has an advantage over Zn-electroplating and electroless Ni-P for NdFeB magnets.

关 键 词：NDFEB永磁体 达克罗 耐蚀性 

分 类 号：TM274[一般工业技术—材料科学与工程] TG174.4[电气工程—电工理论与新技术]