Was ist NdFeB?
NdFeB is the third-generation rare earth permanent magnet material, Was heisst “Magnetischer König” wegen seiner hervorragenden Eigenschaften. Hochleistungs-NdFeB wird hauptsächlich in Motoren verwendet, Kompressoren, Sensoren, usw. im Bereich hoher technischer Barrieren.
1. Material introduction
NdFeB is a tetragonal crystal composed of neodymium, Eisen und Bor (Nd2Fe14B), davon entfallen 25 % bis 35 % auf Neodym, Eisen macht 65–75 % aus, und Bor macht etwa aus 1%.
Es handelt sich um das Seltenerd-Permanentmagnetmaterial der dritten Generation, which has excellent performance in “magnetic properties” coefficients such as intrinsic coercivity, magnetic energy product and remanence, and is a well-deserved “magnet king”.
Nach verschiedenen Produktionsprozessen, NdFeB permanent magnets can be divided into three types: Sintern, Kleben und Heißpressen, while high-performance NdFeB refers to the intrinsic coercivity (Hcj, kOe) and the maximum magnetic energy product ((BH) Sintered NdFeB permanent magnet materials with the sum of max, MGOe) greater than 60 are widely used in many high-precision fields.
2. Processing technology
NdFeB cutting is a very important process. Many manufacturers use an inner diameter cutting machine to cut NdFeB, but there is a NdFeB cutting machine on the market that uses a diamond wire loop as cutting tool. The cutting efficiency is 3 mal so hoch wie die der Innendurchmesser-Schneidemaschine. For details, please see Psalms below：
https://www.youtube.com/watch?v=ZI8z0u4kxys
3. Anwendungsfeld
New energy vehicles, Inverter-Klimaanlagen, energy-saving elevators, maglev trains, intelligent robots, wind power…
4. Development path
5. Industry development goals
As one of the key strategic materials in rare earth functional materials, high-performance NdFeB permanent magnet materials are used in high-performance NdFeB permanent magnets in new energy vehicles, high-speed rail, robots, Unterhaltungselektronik und andere Bereiche. The specific performance requirements are:
1. Low heavy rare earth NdFeB series: 52SH grade products, comprehensive heavy rare earth content < 1wt%;
2.48UH grade products, comprehensive heavy rare earth content < 1.5wt%;
3.44EH grade products, comprehensive heavy rare earth content < 2.5wt%;
4. High-performance radiation ring: comprehensive magnetic properties (BHm) (MGOe) + Hcj (kOe) > 60;
5. High-performance anisotropic bonded magnets: (BHm)(MGOe)+Hcj(kOe)>30.
6. Market Development Trend
Derzeit, in the downstream application market of high-performance NdFeB, wind power occupies a large proportion of the market share. With the rapid development of new energy vehicles, the application of NdFeB in automotive micro and special motors has been continuously promoted, and the demand for high-performance NdFeB in the field of new energy vehicles and auto parts will increase explosively.
