Dongguan Zhenglong Magnet Co., Ltd

News

Home > News > The best solution for locally applied coercivity

The best solution for locally applied coercivity

2023-08-29

Coming back to the fact that diffusion magnets are always inhomogeneous, a question arises as to how to turn this into an advantage. The magnetic circuit does not need a homogenous material. Applications need a magnet that has a sufficiently high local coercivity at each position inside the magnet. Excessive coercivity can be a disadvantage and can lead to locally reduced remanence. In addition, there is no physical reason why high-field concentrations should appear inside a magnet. The field density in electrical machines invariably has `hot spots` at the magnet surface. Since the diffusion process starts from the surface and gives a gradient to the magnet`s centre, the diffusion process is the best solution for locally applied coercivity.

The most recent development in reducing heavy rare earths in a sintered NdFeB magnet is local diffusion according to the local requirement of coercivity. JL MAG refers to this as three-dimensional grain-boundary diffusion (3D-GBD). Large reductions in heavy rare earth usage result in significantly associated price reductions, having been observed for several traction-machine projects.

Send Inquiry

Tel:86--18025153703

Fax:

Mobile Phone:+8618025153703Contact me with Whatsapp

Email:xiaoyongtian@msn.cn

Address:Building 1, Huali Industrial Park, No. 11, Dongxing Road, Wangniudun, Dongguan, Dongguan, Guangdong

Mobile Site

Home

Product

Whatsapp

About Us

Inquiry

We will contact you immediately

Fill in more information so that we can get in touch with you faster

Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.

Send