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ระบบ My.iD จะปิดให้บริการบางส่วนภายในปี 2021 รายละเอียดเพิ่มเติม คลิก

     Talking about the preparation process of bonded neodymium iron boron magnet

Talking about the preparation process of bonded neodymium iron boron magnet
เกริ่นเรื่อง: Nowadays, science and technology are changing with each passing day, and the continuous development and wide application of neodymium disk magnet has promoted the development of society.
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Nowadays, science and technology are changing with each passing day, and the continuous development and wide application of neodymium disk magnet has promoted the development of society. In emerging materials, people have gradually increased the research on bonded neodymium iron boron permanent magnets. The performance of this material has been continuously improved, and its application range has become more and more extensive. The process of preparing bonded NdFeB magnets mainly adopts compression molding method to prepare magnets. The powder making process, bonding process and various molding processes of bonded NdFeB magnets, as well as various process factors, will have an impact on the performance of the magnet. In the preparation process of bonded NdFeB magnets by compression molding, molding pressure and holding time, curing temperature and curing time, binder, solvent, warm pressure and warm pressure are all important factors that affect the performance of the magnet.
 
At present, the magnetic properties of my country's rare earth permanent magnet materials are continuously improving, and the manufacturing technology and methods of rare earth permanent magnet materials are also constantly being reformed and innovated. The first generation rare earth permanent magnet material is SmCo5, the second generation rare earth permanent magnet material Sm2Co17, the third generation rare earth permanent magnet material Nd-Fe-B series, and the fourth generation rare earth permanent magnet Sm- Fe-B series and nanocrystalline exchange-coupled permanent magnet materials are mainly divided into two categories: sintered rare-earth permanent magnets and bonded rare-earth permanent magnets according to their manufacturing processes. The figure below is the flow chart of sintered rare earth permanent magnet and bonded rare earth permanent magnet.

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