The primary performance of the permanent magnet was depicted, such as remanence, coercive force, magnetic energy accumulation and stability.

• 文章介绍了用作磁道钉的永磁材料的主要性能，如剩磁、矫顽力和磁能积及稳定性，并以此为主要内容研究磁道钉的水磁特性；