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Rea Magnet Wire Company, Inc. is one of the world's largest manufacturers of magnet and nonferrous wire products. Rea produces copper, aluminum and brass-insulated magnet wire and bare wire used in the manufacture of motors, transformers and coils. Rea also manufactures a number of specialty wire products.
This magnetic energy value is about 18 times greater than "ordinary" ferrite magnets by volume and 12 times by mass. This magnetic energy property is higher in NdFeB alloys than in samarium cobalt (SmCo) magnets, which were the first type of rare-earth magnet to be commercialized. In practice, the magnetic properties of neodymium magnets depend ...
Ferrofluid on glass, with a rare-earth magnet underneath. A rare-earth magnet is a strong permanent magnet made from alloys of rare-earth elements.Developed in the 1970s and 1980s, rare-earth magnets are the strongest type of permanent magnets made, producing significantly stronger magnetic fields than other types such as ferrite or alnico magnets.
Alnico magnets are produced by casting or sintering processes. [9] Cast alnico is produced by conventional methods using resin bonded sand molds, which can be intricate and detailed, thereby allowing for complex shapes to be produced. [10] The produced alnico magnet typically has a rough surface. [11]
After 2010, industrial manufacturers started to produce tapes, [12] with different layers encapsulating the ReBCO material, [13] opening the way to commercial uses. In September 2021 Commonwealth Fusion Systems (CFS) created a test magnet with ReBCO tape that handled a current of 40,000 amperes, with a magnetic field of 20 tesla at 20 K.
Most Neodymium Iron Boron manufacturers allow a tolerance of ±10% on the Maximum Energy Product and this is specified in the MMPA/IMA magnet stanadrds. The International Magnet Association (IMA) is the old Magnetic Materials Producers Association (MMPA)and they have adopted the MMPA standards and definitions.
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