Neodymium magnets, also known as ndfeb magnet, is made of neodymium, iron, boron tetragonal crystal system crystal.
In 1982, sumitomo special metals sagawa real find neodymium magnets.
This kind of magnet magnetic energy product is greater than the samarium cobalt magnet, is the world largest material magnetic energy product.
Later, sumitomo special metals successful development of powder metallurgy method, general motors, rotary spray melting method of successful development, to the preparation of ndfeb magnet.
The magnet is magnetic today after absolute zero holmium magnet permanent magnets, is the most commonly used rare earth magnet.
NdFeB magnet is widely used in electronic products, such as hard drives, mobile phones, headsets and use battery-powered tools such as sintered NdFeB this is commonly called NdFeB powder metallurgy process, the material itself is very hard, hardness of about 560 -
580 hv, but rather brittle.
Density in 7.
6 g/cubic centimeters high magnetic back, but the temperature stability, according to the different performance level, the highest working temperature at 80 -
If there is no plating or coating between 250 degrees Celsius, material corrosion resistant ability is very poor, easy to oxidation.
Material of resistivity in about 160 centimeters, about 1 return permeability.
05 mu reo, remanent magnetism in - temperature coefficient
12 ~ -
The temperature coefficient is 1% / degrees Celsius, the intrinsic coercive force in -
6% / degrees Celsius.
Specific can ask magnetic technology co. , LTD. Small make up, the company is a professional production research and development of ndfeb magnet manufacturers, looking forward to your call.
A: abnormity magnet processing production mode have?
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