Sintered NdFeB is a strong chemical activity of powder metallurgy materials , the characteristics of hard and brittle and susceptible to oxidative corrosion . Based on such characteristics , the most effective way is to take the current surface protection layer . However NdFeB sintered permanent deterioration of the surface layer due to the presence and density of the grinding process resulting in the pores produced by incomplete oxidation equal, the surface treatment necessary to take appropriate pre-treatment and plating processes , as as follows:
Chamfer → degreasing pickling ultrasonic cleaning → ​​→ → aging → ​​plating plating detection
Victory magnetic surface treatment project provides the following :