ABOUT BONDED NEODYMIUM For a more flexible alternative to sintered neodymium, consider using bonded neodymium magnets for your application. Bonded neodymium powder is used to create these magnets. Powder is melted and mixed with a polymer. Components are then cast or extruded to create the product. Bonded Neodymium magnets can be magnetized into complex patterns [...]
Mobile Phone NdFeB Magnets In every phone, high-performance NdFeB magnets are used to two parts at least, one in phone vibration motor, the other is in miniature electro-acoustic device speaker. NdFeB magnets in mobile phone Mobile Phone NdFeB Magnets On the picture, you can see the rare earth permanent magnets in vibration motor [...]
Molded Magnets for Automotive Sensors We are exporter of Molded Magnets for Automotive Sensors. Features : The polymer over molding also helps the magnet to be used for tight fit snap fit etc. kind of fitments over the mating parts Due to the good wear & lubricating characteristic of these polymers, over molded magnets can [...]
Hard Ferrite isotropic sintered multipole magnet ring Isotropic sintered ferrite magnets’ magnetic properties are low, they have nearly the same magnetic properties in all directions，can be magnetized in many different directions in multi-poles; Isotropic Ferrite Multipole Magnet Rings Ferrite isotropic sintered multipole magnet ring Dry Press radial multipole ferrite magnetic ring includes molding, [...]
Radially oriented anisotropic NdFeB ring magnets MPCO has developed a unique hot extrusion process to produce Radially oriented anisotropic NdFeB ring magnets. Unlike sintering, this process does not rely on a magnetic field for radial orientation. Our process starts with raw material powders manufactured by rapid quenching of the prescribed alloys into nanocrystalline flakes. These [...]
Isotropic polymer bonded SmFeN magnets Sm-Fe-N magnet powders are produced in a similar way to Nd-Fe-B, except that nitrogen is introduced by heat treatment of rapidly quenched Sm-Fe flakes in a nitrogen atmosphere. These flakes are then mixed with a polymer binder and pressed or injected to make isotropic bonded magnets. Magnetic performance of (BH)max=112 [...]
Isotropic Bonded NdFeB Magnets Coatings Compression molded magnets kept in dry air will be rust free for a long time. However, in a humid environment, the moisrure in the air will cause rust on the surface. Therefore surface coating is necessary for most applications. MPCO provides 5 types of coatings for your specific shape and [...]
Injection molded magnets are made by injecting the special compound, a mixture of Nd magnet powder and high performance polymer, into the mold. These magnets cover a wide range of characteristics as isotropic bonded magents, including heat resistance and higher performance. Injection molding offers very flexible shape design as well as overmolding and insert molding [...]
Isotropic polymer bonded NdFeB magnets - The raw material powder is manufactured by rapid quenching of prescribed alloys into nanocristalline flakes which are subsequently annealed for optimum magnetic properties. Shortly after the invention of rapidly quenched NdFeB magnet powders, MPCO had started to develop polymer bonded magnets from these powders. Isotropic polymer bonded NdFeB [...]
Injection Magnet Application Classification Precise ring magnet for micro motor used for automobile gauges motor, timekeeper motor,cooling fan micro motor. Product characteristics: High dimensional accuracy, small concentricity and multipole magnetizing. Plastic injection magnet rotor assembly suitable for automotive gauges. Product characteristics: Simultaneous incorporating shaft, high requirements for radial run-out. Magnet ring for motor suitable for [...]
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