• 专利标题:   Manufacturing ferrite sintered magnet useful in TV and communication transformers comprise preparing mixture including crystalline carbon compound i.e. graphene and carbon, plasticizing mixture to produce plasticizer, and pulverizing.
  • 专利号:   KR2021043119-A
  • 发明人:   CHA J M, OH H, PARK S J, BANG W B, MUK J, LEE J, PARK J, YOON S
  • 专利权人:   LG CHEM LTD
  • 国际专利分类:   C04B035/26, H01F001/10, H01F001/34, H01F041/02
  • 专利详细信息:   KR2021043119-A 21 Apr 2021 H01F-041/02 202138 Pages: 10
  • 申请详细信息:   KR2021043119-A KR125895 11 Oct 2019
  • 优先权号:   KR125895

▎ 摘  要

NOVELTY - Manufacturing ferrite sintered magnet comprises preparing mixture including 0.1-0.5 wt.% raw material compound and crystalline carbon compound, plasticizing the mixture to produce a plasticizer, pulverizing the plasticizer to obtain a magnetic powder, obtaining a molded body by molding the magnetic powder under a magnetic field, sintering to obtain sintered body, where the crystalline carbon compound is graphene and carbon nanotubes. USE - The ferrite sintered magnet is useful in TV and communication transformers, and automobile electric devices. ADVANTAGE - The ferrite: sintered magnet exhibits isotropic properties; has high residual magnetic flux density, excellent coercivity and improved performance index. The method improves productivity.