NdFeB Magnet Manufacturing Process

The NdFeB magnet manufacturing process, as one of the core technologies in the field of modern magnetic materials, ensures the birth of NdFeB magnets' excellent performance through its intricate and complex procedures. In the manufacturing process of Ketian NdFeB magnets, every step from raw material preparation to the final product embodies the wisdom and hard work of the engineers.

Raw Material Selection and Proportioning

First, the NdFeB magnet manufacturing process begins with the careful selection and proportioning of high-purity raw materials. These materials mainly include neodymium, iron, and boron, with a purity that must reach over 99.9% to ensure the purity and consistency of the final product. Next, after precise weighing and proportioning, the raw material powders are sent to the mixing equipment for uniform mixing, laying the foundation for the subsequent forming process.

Forming and Sintering

Next is the critical stage in the NdFeB magnet manufacturing process—forming and sintering. The uniformly mixed powder is pressed into shape to form an initial billet. These billets are then sent into a high-temperature sintering furnace, where, at temperatures ranging from 1300°C to 1400°C, the powder particles fuse together to form dense NdFeB magnets. Temperature control is crucial during this process as it directly affects the magnetic performance and mechanical strength of the magnets.

Heat Treatment

After sintering is complete, NdFeB magnets need to undergo heat treatment processes to further optimize their magnetic properties. Heat treatment includes quenching and tempering, which enhance the hardness and toughness of the magnets through rapid cooling and reheating treatment while eliminating internal stress to ensure product stability.

Machining and Surface Treatment

NdFeB magnets that have undergone heat treatment still require precise machining and surface treatment to meet the dimensional and appearance requirements of different applications. Machining includes cutting, grinding, and other steps to ensure the accuracy and shape of the magnets; surface treatment, through electroplating, spraying, and other methods, improves the corrosion resistance and aesthetics of the magnets.

Packing and Shipping

Finally, NdFeB magnets that have passed strict inspections are packed and warehoused, ready to be shipped worldwide. Each step in the NdFeB magnet manufacturing process is closely linked, collectively forging the brilliance of this high-performance magnetic material.

With continuous technological advancements, as a leading NdFeB magnet supplier, we promise the manufacturing process of Ketian NdFeB magnets will keep innovating and improving, bringing superior magnetic solutions to more fields.