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介绍了一种可用于NdFeB永磁体表面保护的涂层技术──DACROMET（达可乐－锌铝膜），该技术最突出的优点是无环境污染，耐蚀性、耐氢脆优异。初步实验证明，锌铝膜用于粘结NdFeB永磁体效果较好，用于烧结NdFeB永磁体很好，优于电镀锌和电镀镍．
A coating technique that can be used for the surface protection of NdFeB permanent magnets, namely DACROMET, is introduced. The most prominent advantage of this technique is that it has no environmental pollution, corrosion resistance and hydrogen embrittlement resistance. Preliminary experiments show that, Zinc-aluminum film for bonding NdFeB permanent magnet is better, for sintering NdFeB permanent magnet is good, better than electrogalvanizing and nickel electroplating.