18033800. RARE EARTH SINTERED MAGNET, METHOD OF MANUFACTURING RARE EARTH SINTERED MAGNET, ROTOR, AND ROTATING MACHINE simplified abstract (Mitsubishi Electric Corporation)
Contents
- 1 RARE EARTH SINTERED MAGNET, METHOD OF MANUFACTURING RARE EARTH SINTERED MAGNET, ROTOR, AND ROTATING MACHINE
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 RARE EARTH SINTERED MAGNET, METHOD OF MANUFACTURING RARE EARTH SINTERED MAGNET, ROTOR, AND ROTATING MACHINE - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Original Abstract Submitted
RARE EARTH SINTERED MAGNET, METHOD OF MANUFACTURING RARE EARTH SINTERED MAGNET, ROTOR, AND ROTATING MACHINE
Organization Name
Mitsubishi Electric Corporation
Inventor(s)
Yoshikazu Nakano of Tokyo (JP)
Yasutaka Nakamura of Tokyo (JP)
RARE EARTH SINTERED MAGNET, METHOD OF MANUFACTURING RARE EARTH SINTERED MAGNET, ROTOR, AND ROTATING MACHINE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18033800 titled 'RARE EARTH SINTERED MAGNET, METHOD OF MANUFACTURING RARE EARTH SINTERED MAGNET, ROTOR, AND ROTATING MACHINE
Simplified Explanation
The abstract describes a rare earth sintered magnet with a main phase and a grain boundary phase. The main phase has an RFeB crystal structure, where R represents rare earth elements such as Nd, Sm, and possibly La. The main phase contains a higher content of Sm compared to the grain boundary phase. This configuration helps to reduce heat generation in the magnet caused by eddy current loss.
- The rare earth sintered magnet has a main phase and a grain boundary phase.
- The main phase has an RFeB crystal structure.
- The rare earth elements R include Nd, Sm, and possibly La.
- The main phase contains a higher content of Sm than the grain boundary phase.
- This configuration helps to suppress heat generation caused by eddy current loss.
Potential Applications
- Electric motors
- Generators
- Magnetic resonance imaging (MRI) machines
- Magnetic separators
Problems Solved
- Heat generation in rare earth sintered magnets due to eddy current loss
Benefits
- Reduced heat generation
- Improved efficiency and performance of magnets
- Extended lifespan of magnets
Original Abstract Submitted
A rare earth sintered magnet has a main phase and a grain boundary phase, the main phase has an RFeB crystal structure, rare earth elements R include at least Nd and Sm, and the content of Sm is higher in the main phase than in the grain boundary phase. The rare earth elements R may include La. In this manner, the higher content of Sm in the main phase than in the grain boundary phase suppresses the heat generation of the rare earth sintered magnet due to eddy current loss.
