sound of two magnets colliding with each other is clear and pleasant to listen to, so we all have fun playing. When we grow up, our life is inseparable from it, the maglev train to travel, the MRI of the hospital, the loudspeaker used at home, the electromagnetic gun developed by all countries in the military... The magnet actually has so many magical functions, today with you to understand its de...
Magnetic materials mainly include permanent magnets, strong magnets, special-shaped magnets, Nd-Fe-B magnets, etc., covering many high-tech fields. In the fields of rare earth permanent magnet material technology, permanent ferrite technology, amorphous soft magnetic material technology, soft ferrite technology, microwave ferrite device technology, special equipment technology for magnetic materia...
Sintered NdFeB magnets are widely used in all walks of life in the current era of rapid development. NdFeB is easy to oxidize and needs a protective layer, which is called electroplating and surface treatment. Because the elements nd and Fe in NdFeB permanent magnets are easy to corrode and oxidize, the corrosion resistance and oxidation resistance of sintered NdFeB permanent magnets are poor, The...
1. Strong magnet is called permanent magnet. According to the principle, demagnetization has nothing to do with time. There are two main factors causing demagnetization of magnet, temperature and oxidation. If the temperature is too high, it will lose magnetism if it exceeds Curie temperature by 300 ℃. If the protection is not good, it will also lose magnetism if it is oxidized, which is also the ...
Production technology of Nd-Fe-B magnet 1. Raw material preparation and pretreatment: Process Description: pretreatment of raw materials such as weighing, crushing, material breaking and rust removal. Process equipment: steel bar cutter, drum polishing machine, etc 2. Melting: Process Description: the pretreated raw materials praseodymium neodymium, pure iron, ferroboron, etc. are proportioned and...
With the development of society, magnets are more and more widely used, from high-tech products to the simplest magnetic packaging. At present, Nd-Fe-B magnets and ferrite magnets are most widely used. From the development history of magnets, man-made magnets appeared in the 18th century, but the process of manufacturing stronger magnetic materials is very slow. At the end of the 19th century and ...
The magnet creates a fixed magnetic field in the generator. The coils of the generator move in the magnetic field, and the coils cut the magnetic field to generate electricity. This is electromagnetic induction. There are many types of generators, all of which operate on the principle of electromagnetic induction. Generators with permanent magnets are called permanent magnet generators. When a wir...
Hook magnet is an innovative magnetic product that can help lift items such as wires and cables safely to reduce the risk of them becoming tripping hazards in the workplace. Any environment with a metal surface is suitable for hanging or hanging materials from the magnetic hook. Super magnetic hooks are part of the neodymium magnet category, which also includes accessories options for countersunk ...
