• 专利标题:   Graphene rare earth permanent magnetic material comprises neodymium, praseodymium, boron, cobalt, copper, lanthanum, cerium, graphene, and iron.
  • 专利号:   CN113053606-A, US2022301752-A1, US11626223-B2
  • 发明人:   CHEN S, CHEN L, LIU X, LI W
  • 专利权人:   DONGGUAN JINKUN MAGNET PROD CO LTD, DONGGUAN JINCONN NEW MATERIAL CO LTD, DONGGUAN JINCONN NEW MATERIAL CO LTD
  • 国际专利分类:   C22C033/02, C22C038/00, C22C038/10, C22C038/16, H01F001/055, H01F001/08, H01F041/02, B22F003/16, B22F003/24, H01F001/057
  • 专利详细信息:   CN113053606-A 29 Jun 2021 H01F-001/055 202162 Pages: 8 Chinese
  • 申请详细信息:   CN113053606-A CN10281792 16 Mar 2021
  • 优先权号:   CN10281792

▎ 摘  要

NOVELTY - Graphene rare earth permanent magnetic material comprises 20.6-23.4 wt.% neodymium, 6.6-7.5 wt.% praseodymium, 0.95-1.20 wt.% boron, 0.4-0.6 wt.% cobalt, 0.11-0.15 wt.% copper, 2-2.4 wt.% lanthanum, 1.7-2.1 wt.% cerium, 1-5 wt.% graphene, and iron (remaining amount). USE - Used as the graphene rare earth permanent magnetic material. ADVANTAGE - The permanent magnetic material: has good temperature resistance, conductivity and magnetic performance, excellent performance, and has stable performance; does not contain heavy rare earth elements, e.g. terbium and dysprosium heavy rare earth elements; and is economical, and is good for great utilization of rare earth resource, which improves product yield. The method: is simple, and easy to control; and has low production cost, and has high production efficiency. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the graphene rare earth permanent magnetic material.