Sintered magnet: it is a kind of high-performance rare earth permanent magnet material with neodymium (nd), iron (FE) and boron (b) as the main components. It is easy to demagnetize at high temperature. There are many grades that can withstand high temperatures, but there are several factors that will determine the performance of neodymium magnets. There are sintered NdFeB, sintered alnico, sintered SmCo and sintered ferrite.
NdFeB magnet has the following characteristics
Strong br resident induction, excellent anti demagnetization ability.
Compared with its high magnetic performance, the price is good.
NdFeB needs coating
Surface treatment method: type information
Metal zinc, nickel + nickel, copper + nickel, nickel + copper + nickel,
Gold, organic epoxy, nickel + epoxy coating
Temporary surfaces: passivation
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