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介绍了Ｎｄ－Ｆｅ－Ｂ磁体的防腐技术最新进展。合金化法通过增强磁体自身耐蚀性，虽不能完全避免腐蚀的发生，但可简化表面处理；还介绍了各种防护涂层及其特点
The latest progress of anti-corrosion technology of Nd-Fe-B magnets is introduced. Alloying method by enhancing the magnet’s own corrosion resistance, although not completely avoid the occurrence of corrosion, but can simplify the surface treatment; also introduced a variety of protective coatings and their characteristics