Graphene/metal-based composite contact preparation method based on tubular furnace heating

• Main Authors: YANG YANLING, QIANG HAO, YE XIAOHUI, SUN QIHUI, FENG LEI, ZHANG LI, SUO GUOQUAN, HOU XIAOJIANG
• Format: Patent
• Language: Chinese; English
• Published: 22.06.2021
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The invention discloses a graphene/metal-based composite contact preparation method based on tubular furnace heating. A nickel/contact material transition coating is prepared through laser alloying; and graphene is grown on the surface of a contact through tubular furnace heating, and therefore the contact interface of a composite contact material is endowed with physical properties of high heat conductivity and high conductivity and excellent mechanical properties, the defects of an alloy material are overcome, and the application of special properties of graphene in the engineering field is enlarged. The arc ablation resistance, fusion welding resistance and mechanical performance of the contact material are improved, and a theoretical basis and experience guidance are provided for upgrading and reconstruction of rail transit and electrical equipment. 本发明公开了一种基于管式炉加热的石墨烯/金属基复合触头的制备方法，通过激光合金化制备镍/触头材料过渡涂层；再通过管式炉加热在触头表面生长石墨烯，从而赋予复合触头材料接触界面高热导率、高电导率的物理性质和优异的机械性能，弥补了合金材料的缺点，并在工程领域更大化石墨烯特殊性能的应用。本发明提高了触头材料抗电弧烧蚀能力、