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In short, if rare earth neodymium magnets lack neodymium, the remanence(Br) may be reduced, that is to say, the magnetism is weak. Dysprosium(Dy) is also very important for rare earth neodymium magnet, if a high grade rare earth neodymium strong magnet with dysprosium(Dy), which lacks Dy, the grade and coercivity may be reduced, you can understand the high temperature resistance will be reduced.
The percentage of dysprosium(Dy) in each grade of rare earth neodymium magnets?
The content of dysprosium added to the neodymium magnets of grade-N is 0-0.5%.
The content of dysprosium added to the neodymium magnets of grade-M is 0-1%.
The content of dysprosium added to the neodymium magnets of grade-H is 0-2%.
The content of dysprosium added to the neodymium magnets of grade-SH is 1-4.5%.
The content of dysprosium added to the neodymium magnets of grade-UH is 3-6%.
The content of dysprosium added to the neodymium magnets of grade-EH is 4-10%.
The above data is an empirical value, not a fixed value, for reference only! Through the above introduction, we can know that the main purpose of adding dysprosium(Dy) to rare earth neodymium magnets is to improve the temperature resistance. The more the neodymium magnets are added with Dy, the better the temperature resistance is. Meank is high temperature resistant rare earth neodymium supplier.
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