1. Nd - Fe - B permanent magnets
Nd - Fe - B permanent magnets are the strongest permanent magnets nowadays and are widely used. They are mainly used in electro - acoustic equipment (such as speakers), permanent - magnet motors, communication equipment, automotive electronics, magnetic machinery, aerospace, computers, household appliances, medical equipment, office automation, toys, packaging boxes, leather products, magnetic jewelry, and other fields.
2. Permanent ferrite magnets
Permanent ferrite magnets are used as constant magnets in electricity meters, generators, telephones, speakers, television sets, and microwave devices. They are also used in recorders, pick - ups, speakers, magnetic cores of various instruments, and electronic equipment such as radar, communication, navigation, and telemetry.
3. SmCo magnets
SmCo magnets can work at temperatures as high as 300 degrees Celsius and have corrosion - resistance and oxidation - resistance properties. They are widely used in detectors, generators, radars, instruments, and other precision technology fields.
AlNiCo magnets have the characteristics of high - temperature resistance and corrosion resistance. They are mainly used in motors, sensors, medical instruments, hand - held tools, long - tone speakers, and various instruments.
Rubber magnets are divided into isotropic and anisotropic types. Isotropic rubber magnets have relatively weak magnetic attraction and are mainly used in decorations (such as refrigerator magnets, car stickers), decorative gifts, refrigerator magnets, toys, educational materials, etc. Anisotropic rubber magnets have relatively strong magnetic attraction and can be used in small motors, sensors, magnetic adsorption products, etc.
