What is a rare earth magnet? What is a non rare earth magnet? Today, this article takes you to learn more.

Non rare earth magnets have a long history, and their mass production and industrial application gradually matured in the mid-20th century. It was not until the late 20th century that rare earth magnets emerged with the development of powder metallurgy technology, and non rare earth magnets were distinguished from them.

Rare earth magnets are made by smelting the combination of rare earth elements and ferromagnetic elements, which can generate a strong magnetic field and have excellent magnetic retention. Its magnets are brittle and prone to cracking, and are prone to corrosion and loss. Therefore, other metals are generally used as coatings to protect rare earth magnets.

Common rare earth magnets include: samarium cobalt magnets developed in the 1970s, which were the first batch of mass-produced rare earth magnets; Another mainstream neodymium iron boron magnet was launched in 1984.

Non rare earth magnets, commonly known as ferrite and aluminum nickel cobalt magnets, have relatively simple processes and cost advantages, and do not rely on rare earth ore raw materials for production.