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Rare earth permanent magnet ( Ndfeb Nd2Fe14B) Classification of _ ndfeb strong magnet manufacturers

by:Newland     2020-04-03
Rare earth permanent magnet ( Ndfeb Nd2Fe14B) : according to the different production process is divided into the following three & ensp; ( 1) , sintered ndfeb ( 烧结 钕铁硼) — — Sintered ndfeb permanent magnet after airflow grinding powder metallurgy, the coercive force value is very high, and has extremely high magnetic energy, the maximum magnetic energy product ( BHmax) Above ferrite ( Ferrite) More than 10 times. Its mechanical properties are also very good, can cut different shape and drilling. High-performance products of the highest working temperature can reach 200 degrees Celsius. Because of its material content is easy to cause the corrosion, so according to different requirements must be carried out on the surface of different layer with polish processing. ( Such as galvanized zinc, nickel, environmental protection, environmental protection nickel, nickel and copper nickel, nickel and copper nickel environmental protection, etc. ) 。 Very hard and brittle, with high magnetic, high cost/performance ratio, is not suitable for high temperature ( >200℃) 。         ( 2) , bonded ndfeb ( 保税 钕铁硼) — — Bonded ndfeb is ndfeb powder and resin, plastic or low melting point metal binder such as mixing, and then use methods such as compression, extrusion and injection molding compound made of ndfeb permanent magnets. Product forming at a time, without secondary processing, can be directly to make all kinds of complicated shape. Every direction of bonded ndfeb magnetic, can be processed into ndfeb compression mould and injection mould. Precision, magnetic is admirable, good corrosion resistance, high temperature stability is good.   ( 3) , injection ndfeb ( Zhusu 钕铁硼) — — Has high precision, easy to shape anisotropy complex thin-walled rings or thin magnet.
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