▎ 摘　　要

NOVELTY - Brazing of graphene composite interlayer of three-dimensional structure involves ultrasonically pre-treating foam metal chosen from nickel and copper, using acetone, removing impurities, placing pretreated product in chemical vapor deposition chamber, purging methane and argon, depositing, cooling, forming three-dimensional structure of graphene metal composite, placing solder in intermediate layer of three-dimensional structure between to-be-welded surfaces, placing resultant product in vacuum brazing furnace, heat-preserving and cooling. USE - Brazing of graphene composite interlayer of three-dimensional structure (claimed). DETAILED DESCRIPTION - Brazing of graphene composite interlayer of three-dimensional structure involves ultrasonically pre-treating foam metal chosen from nickel and copper, using acetone for 10-20 minutes, removing impurities on foam metal surface, placing pretreated product in chemical vapor deposition chamber, evacuating to 20 Pa or less, purging argon at flow rate of 10-50 sccm, adjusting chamber pressure to 50-300 Pa, heating to 800-1200 degrees C, purging methane at flow rate of 5-40 sccm and argon at 60-95 sccm, respectively, adjusting pressure to 200-800 Pa, controlling deposition temperature to 800-1000 degrees C, depositing for 5-35 minutes, cooling to room temperature at cooling rate of 5-30 degrees C/minute, forming three-dimensional structure of graphene metal composite, placing solder in intermediate layer of three-dimensional structure between to-be-welded surfaces, placing resultant product in vacuum brazing furnace, heat-preserving at 500-1200 degrees C for 2-30 minutes and cooling to room temperature at cooling rate of 2-30 degrees C/minute.