Permanent Magnets
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Neodymium (Rare Earth) Magnets for Efficient Motors
A neodymium magnet with a low degree of coercivity may begin to lose strength if heated to more than 80°C. High coercivity neodymium magnets have been developed to operate at temperatures up to 220°C, with little irreversible loss. The need for a low temperature coefficient in neodymium magnet applications has led to the development of several grades to meet specific operational requirements.
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Neodymium Magnets for Household Appliances
Magnets are widely used for speakers in TV sets, magnetic suction strips on refrigerator doors, high-end variable frequency compressor motors, air conditioning compressor motors, fan motors, computer hard disk drives, audio speakers, headphone speakers, range hood motors, washing machine motors, etc.
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Elevator Traction Machine Magnets
Neodymium Iron Boron magnet, as the latest result of the development of rare earth permanent magnetic materials, is called “magneto king” because of its excellent magnetic properties. NdFeB magnets are alloys of neodymium and iron oxide. Also known as Neo Magnet. NdFeB has extremely high magnetic energy product and coercivity. At the same time, the advantages of high energy density makes NdFeB permanent magnets widely used in modern industry and electronic technology, which makes it possible to miniaturize, lightweight and thin instruments, electroacoustic motors, magnetic separation magnetization and other equipment.
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Neodymium Magnets for Electronics & Electroacoustic
When the changing current is fed into the sound, the magnet becomes an electromagnet. The current direction changes constantly, and the electromagnet keeps moving back and forth due to the “force movement of the energized wire in the magnetic field”, driving the paper basin to vibrate back and forth. The stereo has sound.
The magnets on the horn mainly include ferrite magnet and NdFeB magnet. According to the application, NdFeB magnets are widely used in electronic products, such as hard disks, mobile phones, headphones and battery powered tools. The sound is loud.
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Permanent Magnets for MRI & NMR
The large and important component of MRI & NMR is magnet. The unit that identifies this magnet grade is called Tesla. Another common unit of measurement applied to magnets is Gauss (1 Tesla = 10000 Gauss). At present, the magnets used for magnetic resonance imaging are in the range of 0.5 Tesla to 2.0 Tesla, that is, 5000 to 20000 Gauss.
