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Rare earth elements introduces _ ndfeb strong magnet manufacturers

by:Newland     2020-04-05
1, there are 17 kinds of rare earth elements, respectively as follows: scandium ( Sc) Yttrium ( Y) Lanthanum ( Ca) Cerium ( Ce) Praseodymium ( Pr) Neodymium ( Nd) Promethium ( Pm) Samarium ( Sm) Europium ( Eu) Gadolinium ( Gd) Terbium ( Tb) Dysprosium ( Dy) Holmium ( Ho) Erbium ( Er) Thulium ( Tm) Ytterbium ( Yb) Lutetium ( Lu) In ndfeb products commonly used in rare earth metal neodymium, praseodymium, dysprosium, terbium, gadolinium, holmium. 2, rare earth metal is lively metal chemistry of rare earth metals and lively in alkali metal ( Lithium, sodium,) And alkaline earth metals ( Magnesium and calcium) Between, under certain conditions, Sodium is very active only stored in kerosene) Will produce the following reaction, and produce a lot of heat, heat to provide further promote the reaction, such as: 2 nd o2 nd2u3 + 2 + 3 Q 2 nd + 6 h2o 2 nd ( 哦) 3 +3H2 +Q Nd2O3+3H2O 2Nd( 哦) 3 + Q can be seen from the above equation to take when in the production of ndfeb, anti-oxidation, prevent be affected with damp be affected with damp be affected with damp be affected with damp proof of a key, in the wet days and rainy days the workshop should fully pay attention to the prevention of be affected with damp be affected with damp. 3, the distribution of rare earth metals, according to statistics, China's Inner Mongolia, jiangxi, zhejiang, guangdong, fujian, guangxi, hunan and other places have discovered the rare earths. Due to the state of being different, Inner Mongolia baotou rare earth lanthanum is fluorocarbon cerium ore form light rare earth is given priority to, and is In front of the rare earth neodymium) , and jiangxi is ionic mineral form is given priority to with the heavy rare earth. The world of rare earth in China, most China accounts for about 80% of the world's rare earths, while China's 80% baotou in Inner Mongolia. In the world, the United States, Russia, Australia, Vietnam and other countries have found a rare earths
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