▎ 摘　　要

NOVELTY - Preparing graphene-reinforced aluminum-based composite material involves: (1) ultrasonically dispersing and mixing graphene and aluminum powder to obtain a mixed solution; (2) magnetically stirring the mixed solution, drying, sintering to obtain an aluminum graphene intermediate prefabricated block, cutting into small particles, and wrapping with an aluminum foil; (3) cutting aluminum-silicon-copper base alloy into small pieces, adding to a graphite crucible, heating, heat-preserving, melting the base alloy, then adding small particles of block to the crucible at different angles, cooling the melt, and pouring into a mold to obtain a molten cast blank; (4) adding the blank to a vacuum melting furnace for smelting, spraying, and casting to obtain a casting blank; and (5) adding the blank to a vacuum heat treatment furnace for solution treatment (A), heat-preserving, cooling, adding to the furnace for solution treatment (B), heat-preserving, cooling, aging, and cooling. USE - The method is useful for preparing graphene-reinforced aluminum-based composite material used for manufacturing metal material. ADVANTAGE - The method enables stable, safe and environmentally-friendly preparation of composite material, which has high performance characteristics and mechanical property, and uniform distribution. DETAILED DESCRIPTION - Preparing graphene-reinforced aluminum-based composite material involves: (1) ultrasonically dispersing and mixing graphene and aluminum powder to obtain a mixed solution; (2) magnetically stirring the mixed solution by using a thermostatic heating magnetic stirrer, drying in a vacuum drying oven, sintering in a vacuum hot-press sintering furnace to obtain an aluminum graphene intermediate prefabricated block, cutting into small particles, and wrapping with an aluminum foil; (3) cutting aluminum-silicon-copper base alloy into small pieces, adding to a graphite crucible, placing in a resistance furnace, heating at 780-800 degrees C, heat-preserving for 25-30 minutes, melting the base alloy, then adding small particles of block to the crucible at different angles, applying high-energy ultrasonic wave while adding block, quickly cooling the melt, and pouring into a mold to obtain a molten cast blank; (4) adding the blank to a vacuum melting furnace for smelting, spraying, and casting to obtain a casting blank; and (5) adding the blank to a vacuum heat treatment furnace for solution treatment (A) at 510 plus minus 5 degrees C, heat-preserving for 3.5-4.5 hours, quickly adding to water at 50-60 degrees C to cool, adding to the furnace for solution treatment (B) at 530 plus minus 5 degrees C, heat-preserving 4-5 hours, cooling, aging at 180 plus minus 5 degrees C for 9-10 hours, and cooling.