公开(公告)号：US20130192723A1

公开(公告)日：2013-08-01

申请号：US13718590

申请日：2012-12-18

Applicant: MINEBEA CO., LTD.

Inventor： Haruhiro KOMURA ,  Noboru MENJO ,  Toshinori SUZUKI

IPC: H01F41/02

CPC classification number: H01F41/028 ,  H01F13/003

Abstract: A method for manufacturing a magnetized bonded magnet, including the steps of: arranging a magnetization permanent magnet for magnetizing a magnetic field near a non-magnetized bonded magnet; heating the non-magnetized bonded magnet to a temperature of a Curie point thereof or higher; and continuously magnetizing the magnetic field to the non-magnetized bonded magnet by the magnetization permanent magnet for magnetizing the magnetic field while cooling the non-magnetized bonded magnet reached at the temperature of the Curie point thereof or higher to a temperature of less than the Curie point, wherein the non-magnetized bonded magnet is a rare-earth iron bonded magnet including two or more different rare-earth elements in magnet powder thereof.

Abstract translation: 一种磁化粘结磁体的制造方法，包括以下步骤：设置磁化永磁体，用于磁化非磁化粘结磁体附近的磁场; 将未磁化粘结磁体加热至居里点以上的温度; 并且通过用于磁化磁场的磁化永磁体将磁场持续磁化到非磁化粘结磁体，同时将居里点以上温度达到的未磁化粘结磁体冷却到低于居里 其特征在于，所述非磁化粘结磁体是包含两种或更多种不同稀土元素的稀土铁粘结磁体。