Ruselectronics holding has mastered corrosion protection technology for extra-power neodymium magnets. These products are slowly demagnetizing and are much in demand for alternative energy sources, in particular, for wind turbines. The processes mastered by the Russian professionals will help “super magnets” to get rid of the main disadvantage – low corrosion resistance. Thus, the product life will be extended.
Kimovsk Radioelectromechanical Plant personnel have mastered machining operations as well as special electroplating and epoxy insulation coating technology.
This method was implemented under the Rosatom – Elemash Magnit Cooperation Program. This will allow to launch large-scale manufacturing of sintered NdFeB permanent magnet billets. These products are used as wind turbine rotor components.
“NdFeB magnets have the best specifications to suit wind turbine designs. In addition to high power, they lose only 1% to 2% of their strength per year, while traditional magnets lose from 5% to 10%. However, extremely low corrosion resistance is their bottleneck. To ensure protection against adverse environmental impacts, they are plated with various nickel alloys. No manufacturing facilities capable of performing such process procedures have been available in the Customs Union countries before,” said Vadim Zholud, General Director of KREMZ.
