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There are indeed some differences in the use of neodymium iron boron strong magnets and samarium cobalt high-temperature resistant magnets, mainly due to their unique performance characteristics.

The neodymium iron boron strong magnet is currently one of the most powerful permanent magnets known, with very high magnetic energy product and coercivity. Therefore, it is commonly used in applications that require strong magnetic forces, such as high-performance motors, disk drives High end equipment such as MRI scanners. In addition, due to its high magnetic energy product and excellent mechanical properties, neodymium iron boron magnets are also widely used in fields such as electroacoustic equipment, sensors, and maglev trains.

Samarium cobalt high-temperature resistant magnets are known for their excellent high-temperature resistance performance. It has a high Curie temperature and can maintain good magnetic properties in high-temperature environments. This makes samarium cobalt high-temperature resistant magnets particularly suitable for applications that require high-temperature environments, such as aerospace, automotive manufacturing, petrochemicals, and other fields. In these fields, samarium cobalt high-temperature resistant magnets are commonly used to manufacture various magnetic transmission devices, suspension devices, high-temperature sensors, etc.

Overall, the main difference in usage between neodymium iron boron strong magnets and samarium cobalt high-temperature resistant magnets lies in their respective advantages, performance, and application areas. Neodymium iron boron strong magnets are widely used in various high-end equipment and electroacoustic equipment due to their strong magnetic force, while samarium cobalt high-temperature resistant magnets are particularly suitable for applications in high-temperature environments due to their excellent high-temperature resistance performance.