Compression Bonded Magnets

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  • How are Neodymium Magnets Made

How are Neodymium Magnets Made?

How are Neodymium Magnets Made? The two processes used to manufacture neodymium magnets are sintering and bonding. The properties of the finished magnets vary depending on how they are produced with sintering being the best of the two methods. How Neodymium Magnets are Made Sintering Melting: The Neodymium, Iron and Boron are measured out and [...]

  • Compression Bonded Moulded NdFeB Magnet

Compression Bonded Moulded NdFeB Magnet

Compression Bonded Moulded NdFeB Magnet Compression bonded magnets are composed of a special form of NdFeB powder with adhesive and using compression molding techniques in simple tools, it can be quickly machined into complex shapes. Since its materials are isotropic, bonded NdFeB magnet can be magnetized in any direction or with multiple poles. Special magnetizing [...]

  • Typical Compression Bonded Magnetic Properties

Typical Compression Bonded Magnetic Properties

Typical Compression Bonded Magnetic Properties Many suppliers publish specifications for a nominal 10 MGOe magnets with a minimum limit of 9 MGOe. Similar for a nominal 11 MGOe magnet; minimum limit is 10 MGOe. Have to design to lower limit of BHmax Typical Compression Bonded Magnetic Properties BHmax Improvement in Compression Bonded Magnets The BHmax of a compression bonded isotropic NdFeB magnet is influenced by the following two factors: 1. Volume fraction of magnetic phase in the magnet – typically measured by the density of the magnet. • We are investigating increasing the pressing pressure which requires special press construction, lubricants and tooling materials – current production pressing pressures are 7tonnes/cm2 for 5.9 g/cm3 and 10MGOe; estimated that > 20 tonnes/cm2 required for 6.3 g/cm3 and > 11 MGOe. • Optimize the particle encapsulation chemistry and process. • Tailored multimodal PSD’s for maximum packing density. • Particle shape control. 2. Magnetic powder Br/BHmax • Increase isotropic Br of powders while maintaining sufficient Hci to have “linear” B‐H  demagnetization characteristic at the application temperature. Arc Permanent Magnet Neodymium Nickel N35UH   Neodymium Generator Arc Magnet Nickel N33H   Arc Neodymium Magnet Nickel N30H   Segment Neodymium Magnet Nickel N52

By |May 7th, 2018|Bonded Magnets, Bonded NdFeB, Compression Molded NdFeB, Magnet Properties, Magnetic Knowledge, Magnetic Powders, NdFeB|Comments Off on Typical Compression Bonded Magnetic Properties
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