Sintered neodymium magnets are the most powerful permanent magnets. Sintering technique can further enhances the property and application of neodymium magnets, improve the connecting property between powders, and accelerate the intensity to make magnets own micro structure property, which is a process that needs to heat and press neodymium powder under the melting point of the powder and keep the temperature for some time.
Sintering is an extremely important process, so all manufacturers and the majority of researchers pay great attention to it. The relative density of neodymium power is generally 50% to 70%, and the porosity is 30% to 50%. Sintered neodymium magnets are widely applied in cars, mobile phones, digital cameras, jewelry, clothing, all kinds of hardware accessories, electrical, laser, toys, gifts, speaker, packaging, leathers, medical equipment, and advertising industries.