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:
May. 21, 2024
Filed:
Nov. 05, 2020
Grirem Advanced Materials Co., Ltd., Beijing, CN;
Grirem Hi-tech Co., Ltd., Langfang, CN;
Yang Luo, Beijing, CN;
Zilong Wang, Beijing, CN;
Yuanfei Yang, Beijing, CN;
Zhou Hu, Beijing, CN;
Dunbo Yu, Beijing, CN;
Jiajun Xie, Beijing, CN;
Yifan Liao, Beijing, CN;
Zhongkai Wang, Beijing, CN;
GRIREM ADVANCED MATERIALS CO., LTD., Beijing, CN;
GRIREM HI-TECH CO., LTD., Langfang, CN;
Abstract
A method for preparing a rare earth anisotropic bonded magnetic powder, comprises the following steps: (1) preparing raw powder with RTBH as the main component, wherein, R is Nd or Pr/Nd, and T is a transition metal containing Fe; (2) adding La hydride or Ce hydride and copper powder to the raw powder to form a mixture; (3) subjecting the mixture to atmosphere diffusion heat treatment to give the rare earth anisotropic bonded magnetic powder.