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The comprehensive introduction of Neodymium iron boron permanent magnets' characteristics
NdFeB permanent magnets are a new type of permanent magnet, invented by Japanese contemporary scientist Sakawa Masahito, which is alloy magnet, composed of three elements of neodymium, iron and boron, and is now the strongest permanent magnet. Because neodymium atom is flat, the limitation of electronic cloud makes the iron atom not offset, thereby forming a constant magnetic.
Neodymium iron boron material contains a lot of neodymium and iron, with easy corrosion. So the neodymium iron boron magnet must do surface coating. Surface chemistry passivation is a very good solution.
The main ingredients of neodymium iron boron passivation: metal surface passivation agent, heavy film agent, surface active agent, buffering agent, poly and agent. Abbreviation: Royce-799 series, the scope of application: apply to neodymium iron boron material, cast iron, powder metallurgy and other materials directly on the surface passivation using.
The physical and chemical properties of neodymium iron boron permanent magnets: physical appearance: light yellow transparent liquid, PH:7.0-9.0, immersed membrane agent: > 20%, passivation agent: > 20%, other active agents: > 4%.
from:http://www.htmagnets.com/newsd-nid-87.html-
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