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Ndfeb magnets and powerful magnets chemical Chemistry composition

by:Newland     2020-04-28
Ndfeb magnets and powerful magnets chemical Chemistry composition material name (both in English and Chinese 名称) Symbol element symbols (chemical composition 化学分析) WT % CAO No neodymium ( 钕) Nd 26. 00 7440 - 00 - 8 praseodymium ( Praseodymium) Pr 6. 50, 7440 - 10 - 0 boron ( 硼) B 1。 20, 7440 - 42 - 8 dysprosium ( 镝) Dy 2. 50, 7429 - 91 - 6 iron ( Ferrum) Fe the rest 7439 - 89 - 6 casting aluminum nickel and cobalt permanent magnet has the lowest temperature coefficient is reversible, working temperature can be as high as above 600 ℃. Powerful magnet factory products are widely used in all kinds of instruments and meters and other application fields. Powerful magnet factory divided into SmCo5 ingredients and Sm2Co17. Because its material is expensive and make its development was restricted. Samarium cobalt ( SmCo) As a rare earth permanent magnets, not only have higher magnetic energy product ( 14 - 28 mgoe) And reliable coercive force and good temperature characteristic. Powerful magnet compared with ndfeb magnets, samarium cobalt powerful magnets is more suitable for working in high temperature environment. Ndfeb contains a large number of rare earth elements, neodymium iron and boron, its characteristics of hard and brittle. Vulnerable to oxidation corrosion on the surface, ndfeb surface coating treatment must be conducted. Surface chemistry is blunt ndfeb is one good way to solve. As rare earth ndfeb permanent magnet material of a magnetic energy product and high coercive force. Magnet, powerful magnets, special-shaped magnets, magnet manufacturer,
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