• 专利标题:   Method for preparing metal-based composite material with enhanced graphene used in electrical and thermal conductivities involves mixing and dispersing graphene and metal powder to obtain reinforced powder, and compounding reinforced powder with metal base material by stirring friction technology.
  • 专利号:   CN115747546-A
  • 发明人:   PEI Z, LIANG J, YANG W, ZHANG X, CHEN Q
  • 专利权人:   CRRC IND RES INST CO LTD
  • 国际专利分类:   C22C001/05, C22C021/00, C22C023/00, C22C032/00, C22C009/00
  • 专利详细信息:   CN115747546-A 07 Mar 2023 C22C-001/05 202323 Chinese
  • 申请详细信息:   CN115747546-A CN11282023 19 Oct 2022
  • 优先权号:   CN11282023

▎ 摘  要

NOVELTY - The method involves mixing and dispersing graphene and metal powder to obtain reinforced powder, and compounding the reinforced powder with a metal base material (11) by stirring friction technology to obtain a metal-based composite material with metal base graphene, where the metal substrate includes one of copper, aluminum, magnesium or alloys. USE - Method for preparing metal-based composite material with enhanced graphene used in electrical conductivity and thermal conductivity. ADVANTAGE - The method reduces the agglomeration of the graphite alkene by premixing the graphene and the metal powder, and reduces the stirring friction damage to the graphene structure, so as to obviously improve the reinforcing effect, promotes the orientation and uniform dispersion of graphene, and further improves the composite material performance. The method realizes local heating of the material by stirring friction mode, the high temperature residence time is short, the energy consumption is obviously reduced. The method can be adjusted by adjusting the stirring head rotating speed, forms the shape of the discharging unit and so on to control the composite process parameter, and has high the process controllability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a stirring friction device. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the stirring friction device for preparing metal-based composite material with enhanced graphene of the method for preparing metal-based composite material with enhanced graphene. 10Substrate fixing unit 11Metal base material 12Reinforcing powder 13Lower fixing splint 20Stirring friction unit 21Stirring head 22Stirring area 23Plastic deformation zone 30Radial extruding unit