Research on Bonded NdFeB Arc-Magnets

Abstract:

The manufacture technology and mould structure of bonded NdFeB arc-magnets from press molding were described. The effects of the content of binder and additives, particle size of magnetic powder, the molding pressure, the treatment of magnet surface on the mechanical property, processing property, magnetic property and anti-oxidation property of press molding magnets were investigated. The press molding bonded magnets were prepared by using the MQP-B rapidly quenching NdFeB magnetic powder and epoxy binder. The magnetic properties are: Br = 0.722 T, Hcb = 457 kA/m, Hci = 718 kA/m, and (BH) max = 83.5 kJ/m³.

• Periodical: Advanced Materials Research (Volumes 941-944)
• Pages: 614-618
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.941-944.614
• Online since: June 2014
• Authors: Wan Zhong Qin*, Jie He
• Keywords: Arc-Magnets, Bonded NdFeB, Magnet Properties, Press Molding

References

[1] Y. Luo: Electrical Engineering Materials, Vol. 31(2003) No. 1, p.31.

[2] M.B. Tian: Magnetic Materials (Tsinghua University Press, China 2001).

[3] S.Z. Zhou, Q.F. Dong: Supermagnets: Rare Earth Permanent Magnet Materials Based on Ferrous Alloy (Metallurgy Industry Press, China 1999).

[4] N.Y. Wang, Z.Y. Zhang: Metallic Functional Material, Vol. 10(2003) No. 4, p.5.

[5] P.Y. Huang: The Principle of Metallurgy (Metallurgical Industry Press, China1997).

[6] W.N. Zhou, W.X. Li, Y. F Wang: Electronic Components & Materials, Vol. 25(2006) No. 2, p.31.