Fenghua Chen

Title: Fenghua Chen: Innovator in Rare Earth Permanent Magnets

Introduction

Fenghua Chen is a notable inventor based in Beijing, China. He has made significant contributions to the field of rare earth permanent magnets, holding 3 patents in this area. His work focuses on enhancing the efficiency and cost-effectiveness of magnet production.

Latest Patents

One of Fenghua Chen's latest patents is titled "Rare earth permanent magnet and method for preparing same." This invention discloses a rare earth permanent magnet that exhibits a heavy rare earth element volume diffusion phenomenon. This phenomenon occurs at a depth of 5 μm to 100 μm from the surface of the magnet to its interior along the magnetic field orientation direction. The invention details a volume diffusion layer region divided into magnet units, each with a volume of 10*100*5 μm. The concentration difference of heavy rare earth elements in these units is maintained below 0.5 at %. The patent also provides a sintered NdFeB magnet with high intrinsic coercive force Hcj, without affecting the remanence Br and the maximum magnetic energy product (BH)max. The method for preparing this magnet involves microwave heat treatment on a blank magnet coated with heavy rare earth source slurry in a vacuum condition. This innovative approach improves heating efficiency, reduces heat treatment time, lowers energy consumption, and decreases production costs.

Career Highlights

Fenghua Chen is associated with Beijing Zhong Ke San Huan Hi-tech Co., Ltd., where he continues to develop advanced technologies in magnet production. His expertise in this field has positioned him as a key player in the industry.

Collaborations

Fenghua Chen has worked alongside talented colleagues, including Zhi'an Chen and E Niu, who contribute to the innovative environment at their company.

Conclusion

Fenghua Chen's work in rare earth permanent magnets showcases his commitment to innovation and efficiency in manufacturing processes. His contributions are paving the way for advancements in magnet technology.