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RARE EARTH-BASED PERMANENT MAGNET EXCELLENT IN SALINE WATER RESISTANCE, AND SALINE WATER RESISTANCE

2025-07-29 07:053750下载
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PROBLEM TO BE SOLVED : To provide a saline water resistance imparting method with respect to a rare earth-based permanent magnet, and to provide a rare earth-based permanent magnet superior in resistance to saline water. SOLUTION : The saline water resistance imparting method to a rare earth-based permanent magnet is made to deposit and form an Al coated film, containing Mg of 3 to 10 wt% as a metal component other than Al on the surface. Accordingly, it is possible to impart superior saline water resistance to the rare earth-based permanent magnet, without deteriorating its magnetic characteristics.


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