SmCo magnets have a high magnetic energy product and extremely low-temperature coefficient. Their maximum operating temperature can reach 350℃. When the working temperature is above 180℃, their maximum magnetic energy product (BHmax), coercivity, temperature stability, and chemical stability all exceed those of the NdFeB permanent magnet materials. Due to SmCo magnets’ strong corrosion and oxidation resistance, they are widely used in aerospace, defense, and military industry, microwave devices, communications, medical equipment, instruments, meters, various magnetic transmission devices, sensors, magnetic processors, motors, magnetic cranes, etc.