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2024

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04

Chemical composition of NdFeB magnets

The main components of NdFeB magnets are rare earth (Re), iron (Fe) and boron (B). In order to obtain different properties, rare earth Nd can be replaced by other rare earth metals such as dysprosium (Dy) and praseodymium (Pr). Iron can also be partially replaced by other metals such as cobalt (Co) and aluminum (Al), however, it plays an important role in the formation of tetragonal crystal structure intermetallic compounds with high saturation magnetization, high uniaxial anisotropy and high distance temperature. The technological process of magnet: batching → smelting ingot making → pulverizing → pressing → sintering tempering → magnetic detection → grinding → pin cutting and adding


The main component of NdFeB magnets is rare earth (Re), iron (Fe) and boron (B), among which rare earth Nd can be partially replaced by other rare earth metals such as dysprosium (Dy) and praseodymium (Pr) in order to obtain different properties, and iron can also be partially replaced by other metals such as cobalt (Co) and aluminum (Al). The boron content in NdFeB strong magnet is small, but it plays an important role in forming tetragonal crystal structure intermetallic compounds, the compounds have high saturation magnetization, high uniaxial anisotropy and high distance temperature.

the technological process of magnet:

Ingredients→ smelting ingot → powder making → pressing → sintering tempering → magnetic detection → grinding → pin cutting → electroplating → finished product. The ingredients are the basis, sintering tempering is the key.

NdFeB magnet production tools: melting furnace, jaw crusher, ball mill, air flow mill, press molding machine, vacuum sealing machine, isostatic press, sintering furnace, heat treatment vacuum furnace, magnetic performance tester, Gaussmeter.

NdFeB magnet processing tools: there are special slicer, line cutting machine, flat grinding machine, double-sided machine, punching machine, chamfering machine, electroplating equipment.

 

Source: magnet manufacturers Youlian Magnetic Industrywww.youliancy.com

 

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