公开(公告)号：US20180226180A1

公开(公告)日：2018-08-09

申请号：US15750238

申请日：2015-08-24

Applicant: Nissan Motor Co., Ltd.

Inventor： Yoshio KAWASHITA ,  Masaya ARAI ,  Ryou MURAKAMI ,  Shinichirou FUJIKAWA

IPC: H01F1/053 ,  H01F41/02 ,  B22F1/02

CPC classification number: H01F1/0533 ,  B22F1/0062 ,  B22F1/0085 ,  B22F1/0088 ,  B22F1/02 ,  B22F3/14 ,  B22F2301/45 ,  H01F1/059 ,  H01F1/083 ,  H01F1/09 ,  H01F41/0266

Abstract: A bond magnet molding is provided that contains coated magnetic particles having at least two layers of an oxide layer of 1-20 nm on a surface of magnetic particles and an organic layer of 1-100 nm on an outer side of the oxide layer. The bond magnet molding preferably includes a Zn alloy as a binder. The Zn alloy has a strain rate sensitivity exponent (m value) of not less than 0.3 and an elongation at break of not less than 50%. The magnet particles have a nitrogen compound containing Sm and Fe that are solidified using the binder at a temperature not higher than a molding temperature.