The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2018
Filed:
Jul. 02, 2012
Yang Luo, Beijing, CN;
Hongwei LI, Beijing, CN;
Dunbo Yu, Beijing, CN;
Kuoshe LI, Beijing, CN;
Wenlong Yan, Beijing, CN;
Jiajun Xie, Beijing, CN;
Shuai LU, Beijing, CN;
Yang Luo, Beijing, CN;
Hongwei Li, Beijing, CN;
Dunbo Yu, Beijing, CN;
Kuoshe Li, Beijing, CN;
Wenlong Yan, Beijing, CN;
Jiajun Xie, Beijing, CN;
Shuai Lu, Beijing, CN;
GRIREM ADVANCED MATERIALS CO., LTD., Beijing, CN;
Abstract
The application discloses a rare-earth permanent magnetic powder, a bonded magnet, and a device using the bonded magnet. The rare-earth permanent magnetic powder comprises 4 to 12 at. % of Nd, 0.1 to 2 at. % of C, 10 to 25 at. % of N and 62.2 to 85.9 at. % of T, wherein T is Fe or FeCo and the main phase of the rare-earth permanent magnetic powder is a hard magnetic phase with a TbCustructure. Material volatilization can be avoided effectively during a preparation process of the rare earth permanent magnetic powder, thus improving the wettability with a water-cooling roller during the preparation process and final prepared materials are provided with good magnetic properties.