▎ 摘　　要

NOVELTY - Graphene reinforced aluminum-silicon casting aluminum alloy comprises 8.4-8.7 wt.% silicon, 0.001-0.007 wt.% graphene, 0.2-0.35 wt.% copper, 0.06-0.08 wt.% magnesium, 0.01-0.03 wt.% iron, 0.03-0.05 wt.% zinc, 0.02-0.05 wt.% manganese, 0.05-0.08 wt.% titanium, 0.06-0.1 wt.% zirconium, aluminum and inevitable impurities (balance amount). The sum of the weight percentage of impurities is less than or equal to 0.03%. USE - Used as graphene reinforced aluminum-silicon casting aluminum alloy. ADVANTAGE - The aluminum alloy: has 14.17-17.34% elongation and 25.68-26.03 MS/m electrical conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing aluminum alloy (i) aluminum particles, silicon particles, graphene, copper particles, magnesium particles, iron particles, zinc particles, manganese particles, titanium particles and zirconium particles, (ii) laying layer of aluminum particles on bottom of the crucible of the melting furnace, where the aluminum particles completely cover the seamless gap at the bottom of the crucible, and the dosage is 1/3-1/2 of the total aluminum particles, coating other raw material particles except aluminum particles and graphene, sequentially placing finally graphene and remaining aluminum particles, the aluminum particles completely cover the graphene, (iii) placing the melting furnace crucible in a melting furnace, closing the melting furnace door, turning on the vacuum pump to extract the air from the furnace, filling with high-purity argon gas for purging, continue to evacuating to below 50 Pa, filling with high-purity argon gas as protective atmosphere, the gas pressure is 500-1000 Pa, (iv) turning on the melting furnace power to start smelting the alloy, where the smelting process is performed by heating at 310-320 A for 200-280 seconds to slowly increase the crucible temperature to 750 plus minus 5 degrees , and maintaining the current constant temperature, shaking the crucible for 80-90 seconds, the sloshing amplitude is plus minus 15 degrees of the central axis of the crucible of the smelting furnace, and the shaking frequency is 50-60 times/minutes, reducing the current to 270-280 A, allowing to stand for cooling at a rate 720 plus minus 5 degrees C, gently shaking the crucible for 40-50 seconds, the shaking amplitude is plus minus 10 degrees of the central axis of the crucible in the melting furnace, and the shaking frequency is 50-60 times/minute, turning off the power, adjusting the current to 145-160 A when the temperature of the melt in the crucible of the smelting furnace drops to 650 plus minus 5 degrees , and casting the melt into the graphite mold, and cooling.