Ningbo Ketian Magnet CO.,LTD.
Ningbo Ketian Magnet CO.,LTD.

Sintered Rare Earth Magnets: The Choice of High-Performance Magnetic Materials

Jul 30 , 2024

Definition of Sintered Rare Earth Magnets


Sintered rare earth magnets, especially sintered neodymium-iron-boron magnets, are important members in the field of rare earth permanent magnetic materials. Sintered rare earth magnets are permanent magnets produced by pressing rare earth elements (such as neodymium) along with iron, boron, and other metal powders into shape and then sintering them at high temperatures. This process endows them with a stable tetragonal crystal structure and excellent magnetic properties.


Characteristics of Sintered Rare Earth Magnets


The characteristics of sintered rare earth magnets are reflected in their moderate remanence, high coercivity, and good magnetic field stability. These properties allow them to maintain relatively stable magnetic output in various working environments, being less susceptible to external factors. Additionally, sintered rare earth magnets exhibit good heat resistance and corrosion resistance, allowing them to maintain their performance within a certain temperature range and in various chemical environments.


Applications of Sintered Rare Earth Magnets


In terms of applications, sintered rare earth magnets are widely used in numerous fields due to their stable magnetic properties and moderate cost. In audio devices, such as speakers and headphones, sintered rare earth magnets work in conjunction with coils to achieve efficient sound conversion and transmission. In the motor industry, they serve as permanent magnets, providing a stable magnetic field environment for motors, ensuring normal operation. Furthermore, sintered rare earth magnets are also used in dental prosthetics, magnetic coupling pumps, door locks, and other fields, playing a crucial role.


Particularly in magnetic coupling pumps, sintered rare earth magnets achieve contactless transmission of the pump through their strong magnetic force, enhancing the operational safety and reliability of the pump. In door locks, sintered rare earth magnets ensure the secure closing and opening of doors with their strong magnetic attraction.


As a reliable NdFeB magnet supplier, Ketian is renowned for its excellent production processes and strict quality control. The sintered rare earth magnets produced by Ketian have won the trust and praise of a vast number of users because of their stable performance and reliable quality. Ketian always upholds a spirit of striving for perfection, continuously improving product performance, and providing high-quality magnetic materials to the market, earning widespread admiration.