▎ 摘 要
NOVELTY - Preparation of graphene aluminum alloy wire by continuous extrusion involves ultrasonically dispersing 0.5-1.0 %mass graphene in an alcohol solution for 0.5-1.0 hour to obtain a mixed solution of graphene and alcohol, mixing (-200)-400 mesh alloy powder to the mixed solution of graphene and alcohol at 40-60 degrees C and 100-500 rpm for 1-2 hours to obtain a semi-solid paste-type graphene and alloy mixed powder, vacuum degassing, and continuously extruding the graphene and alloy mixed powder. The alloy comprises 0.1 %mass copper, 4.0-4.9 %mass magnesium, 0.4 %mass silicon, 0.15 %mass titanium, 0.4 %mass iron, 0.25 %mass zinc, 0.40-1.0 %mass manganese, 0.05-0.25 %mass chromium and remaining aluminum. The continuous extrusion apparatus comprises extrusion module and powder degassing module. The extrusion module comprises pressing wheel, curved shoe seat at a cross section of the end of the feeding port and the side of the pressing wheel, and feeding port arranged on the squeeze wheel. USE - Preparation of graphene aluminum alloy wire by continuous extrusion. ADVANTAGE - The process is simple, energy saving and suitable for large-scale production, and can be continuously operated, and provides the alloy composite material with high yield. The graphene aluminum alloy wire has excellent strength of the alloy and conductivity of pure aluminum, high structure uniformity, excellent performance stability, high material utilization rate of 95%, and excellent dimensional accuracy and smoothness. DETAILED DESCRIPTION - The powder degassing module is arranged between the squeeze wheel and the feed port, and has the arc length of smaller than the arc length of the semicircle of the squeeze wheel, and the extrusion die and stopper are arranged along the arc between the ends of the pressing portion of the pressing wheel and the shoe.