PERMANENT MAGNET MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a permanent magnet material of R-Fe-B composition (R denotes a rare earth element) which is enhanced in magnetic characteristics and corrosion resistance by a method wherein a plated film is improved in adhesion and corrosion resistance. SOLUTION: A Zn plating layer or a Zn alloy plating layer is formed on the surface of a sintered magnet material, and then an Ni plating layer or an Ni alloy plating layer is deposited thereon.