• 专利标题:   Silver tungsten carbide graphene electrical contact material comprises e.g. silver as a substrate material, tungsten carbide as first reinforcing phase, graphene as second reinforcing phase and nickel as third reinforcement phase.
  • 专利号:   CN108531764-A
  • 发明人:   WANG P, SHEN M, MAO L, CHEN L, ZHANG F
  • 专利权人:   SHANGHAI HEWU COMPOSITE MATERIALS CO LTD
  • 国际专利分类:   C22C005/06, C22C032/00, C22C026/00, C22C001/05, B22F009/24, B22F003/10, B22F003/02, B22F003/24
  • 专利详细信息:   CN108531764-A 14 Sep 2018 C22C-005/06 201868 Pages: 11 Chinese
  • 申请详细信息:   CN108531764-A CN10328502 13 Apr 2018
  • 优先权号:   CN10328502

▎ 摘  要

NOVELTY - Silver tungsten carbide graphene electrical contact material comprises silver as a substrate material, tungsten carbide as first reinforcing phase, graphene as second reinforcing phase and nickel as third reinforcement phase, where amount of tungsten carbide is 12-85 wt.%, graphene is 0.1-8 wt.%, nickel is 0.5-3 wt.%, and silver (balance). USE - Used as silver tungsten carbide graphene electrical contact material. ADVANTAGE - The method is simple and suitable for large-scale production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing silver tungsten carbide graphene electrical contact material comprising preparing silver/graphene oxide/nickel complex powder by chemical method, ball milling tungsten carbide powder with silver/graphite oxide/nickel complex powder to obtain silver/tungsten carbide/graphene oxide/nickel complex powder, subjecting obtained powder for reduction treatment to obtain silver/tungsten carbide/graphene/nickel complex powder, where amount of tungsten carbide in silver/tungsten carbide/graphene/nickel complex powder is 12-85 wt.% preferably 12-25 wt.%, preparing silver/tungsten carbide/graphene/nickel electrical contact material by powder metallurgy technique i.e. pneumatic infiltration technology. DESCRIPTION OF DRAWING(S) - The drawing shows flow diagram of the preparation of silver tungsten carbide graphene electrical contact material (Drawing includes non-English language text).