Ni-Co-P coatings were deposited on the NdFeB magnets in order to improve their corrosion resistance and decrease their loss of magnetic property.

Research on the erosion of several familiar medium to NdFeB magnets

The high performance NdFeB magnet magnetism performance is the structure sensitive quantity, with microstructure close correlation, only establishes the reasonable agglutination temperature and the soaking time, can obtain the quite ideal microstructure, the magnet performance can obtain the guarantee.

Anisotropic NdFeB magnet was prepared by spark plasma sintering(SPS)technique.

The phosphating solutions were developed to prepare phosphating films on NdFeB permanent magnet so as to increase the corrosion resistance.

The XRD analytical methods of texture and microstructural parameters of NdFeB permanent magnet in preparation have been reviewed in this paper.

A set of operating parameters of an anodic electrophoresis process for protecting NdFeB permanent magnets are proposed based on the practical experience.

The coating technics by electroless deposition with Ni-P alloy on the surface of NdFeB magnets were optimized by orthogonal experiments.

A proximate formula for maximum use temperature of NdFeB magnets is devived according to their temperature characteristics and operation states.

A new protection coating for NdFeB magnets—Dacromet (Zn-coating) is introduced, which features no-environmental pollution, hydrogen brittleness and corrosion-resistance.

Laser spot welding of SPCC steel and NdFeB magnet;