为了解决低压器件中银基触头易熔焊、易烧蚀、电寿命不足的问题，采用了激光法制备新型石墨烯/银基复合触头。通过激光熔覆技术在商用AgNi15触头表面制备了全覆盖的石墨烯薄膜，将其作为独立涂层抵抗环境的破坏; 进行了理论分析和实验验证，取得了最优工艺条件及相应的性能数据。结果表明，所制备的新型石墨烯/银基复合触头硬度为104.05 HV，密度为9.15 g/cm3，接触电阻为0.016 Ω。该研究为高性能低压触头提供了新的解决方案和实验基础。

In order to solve the problem of silver-based contacts in low-voltage devices, which were prone to fusion and ablation, leading to insufficient electrical life, a new graphene/silver-based composite contact was prepared by the laser method. A fully covered graphene film was prepared on the surface of commercial AgNi15 contacts by laser cladding technology as a stand-alone coating to resist environmental damage. Theoretical analysis and experimental verification were carried out to obtain the optimal process conditions and corresponding performance data. The results demonstrate that the hardness of graphene/silver composite contact is 104.05 HV, the density is 9.15 g/cm3, and the contact resistance is 0.016 Ω. The new solution protocol and experimental bases have been provided for the fabrication of high-performance low-pressure contacts in this study.