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Today's topic: Why should Dysprosium be added to NdFeB magnets?
As we all know, the temperature resistance of NdFeB is relatively poor. In order to improve the coercivity and thus the working temperature of NdFeB, the magnet manufacturer added dysprosium in the formula.
What will be the effect of less dysprosium in powerful neodymium magnet?
To put it simply, if NdFeB lacks neodymium, the remanence may be reduced, that is to say, the magnetism is weak. If there is dysprosium in the high grade permanent magnet, the lack of dysprosium may lead to the reduction of the grade and the coercivity, which can be understood as the reduction of the high temperature resistance characteristics.
The image is a convex magnet with a paired magnetization, Related products are: Nickel Coated Top Hat Shaped Strong Magnets [sales supply]
Guess you also want to know the NdFeb brand metal dysprosium each account for how much?
The dysprosium content added in the M grade NdFeb grade is 0-1%
The dysprosium content of the metal added in the H file NdFeb grade is 0-2%
The dysprosium content of SH file NdFeb grade is 1-4.5%
The content of dysprosium in UH NdFeb grade is 3-6%
The dysprosium content in EH grade NdFeb is 4-10%
The above data for the experience value, not fixed value, for reference only!
Through the above introduction, we can know that Ndfeb strong magnets plus dysprosium is mainly to improve the temperature resistance, the more added, the better the temperature resistance performance.
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