▎ 摘　　要

NOVELTY - The graphene/aluminum composite material preparation method involves low temperature ball-milling for 3 hours, taking out and placing the mixed powder in an inert gas protective box, and waiting for temperature to recover to room temperature to obtain aluminum composite material sheath with inner cavity diameter of 80-120 millimeters (mm) and inner cavity height of 85-300 mm. The vacuum degassing of aluminum composite material sheath is performed at temperature of 300-350 degrees Celsius and pressure of 2.0x 10-3 for 2 to 4 hours. The welding sealing is performed after vacuum degassing. USE - Preparation method for graphene/aluminum composite material. ADVANTAGE - The graphene/aluminum alloy is added to the molten alloy liquid aluminum to maximize and improve graphene dispersed in liquid aluminum uniformity so that industrialized production of graphite of aluminum conductor cable is achieved by melt casting method. Provides preparation method with low production costs and suitable for industrial production and good market prospect since low temperature ball- milling, vacuum degassing, hot isostatic pressing and extrusion process are simple and controllable.