Today we will talk about two common rare earth magnets in magnetic materials - NdFeB magnets and SmCo magnets​. They have a wide range of applications in modern industries, but how are they different? Let's find out!

NdFeB magnets, commonly known as neodymium magnets, NdFeB magnets, are made of neodymium, iron, boron and other materials through special processes. The strong magnetic force mainly comes from the intermetallic compound ND2FE14B, because it contains about 30% of rare earth metals Neodymium, so it is also called rare earth permanent magnet. According to different processes, it can be divided into sintered NdFeB permanent magnets and bonded NdFeB permanent magnets.

The production process of rare earth permanent magnet materials is a constantly evolving process. In the early production process, metallurgy was the main method. Rare earth elements were extracted by high-temperature smelting, and then magnetic materials with strong magnetic properties were prepared by chemical reduction and vacuum smelting. The process of this method is complicated, the production cost is high, and there is a risk of environmental pollution.