• 专利标题:   Preparation of copper-tungsten graphene-containing composite material for vacuum switch electric appliance, involves preparing tungsten-copper-graphene core-shell powder, and sintering obtained graphene core shell powder.
  • 专利号:   CN114713821-A
  • 发明人:   DING Y, ZHU Z, LIANG S, ZOU J, XIAO P, CHEN Z, ZHANG Q, DENG N
  • 专利权人:   UNIV XIAN TECHNOLOGY
  • 国际专利分类:   B22F001/16, B22F001/17, B22F003/02, B22F003/10, B22F003/105, B22F003/14, C22C001/05, C25D015/00, C25D003/38, C25D005/18
  • 专利详细信息:   CN114713821-A 08 Jul 2022 B22F-001/17 202272 Chinese
  • 申请详细信息:   CN114713821-A CN10033385 12 Jan 2022
  • 优先权号:   CN10033385

▎ 摘  要

NOVELTY - Method for preparing copper-tungsten graphene-containing composite material involves (a) preparing tungsten with copper and graphene core-shell powder, and (b) sintering the tungsten with copper and graphene core-shell powder prepared in step (a) to obtain a copper-tungsten and graphene composite material. USE - The method is used for preparing copper-tungsten composite material used as main switch electric appliance of medium-high voltage electric network and electrified railway. ADVANTAGE - The method solves the problem that the tungsten skeleton strength and conductivity of the copper-tungsten composite material is influenced by the addition of the graphite, and the method for preparing the composite material has low cost, and has good anti-arc ablation performance. The method uses graphene oxide after electrochemical reduction in the electro-deposition process of graphene oxide, which greatly reduces the production cost.