The invention discloses a high-
toughness thin-wall aluminum
alloy electric power fitting and a
casting mold thereof, and relates to the technical field of aluminum
alloy preparation. The wall thickness of the aluminum
alloy electric power fitting is 2.5-4 mm. The vacuum thin-wall
die casting preparation method comprises the steps that a die is closed; raw materials are weighed according to the
mass percent of elements in an aluminum alloy material and smelted, aluminum alloy liquid is obtained, and the aluminum alloy material comprises, by weight percent, 4%-6% of Si, 0.4%-0.65% of Mn, 0.05%-0.2% of Er, 0.1%-0.25% of Mg, 0.05%-0.2% of Zr, 0.02% of Sr, 0.15%-0.3% of Fe, 0.3%-0.55% of TiB2, no more than 0.2% of other
impurity elements and the balance Al; aluminum alloy liquid is fed, and the pouring temperature is kept at 680-750 DEG C; starting a
vacuum pump to exhaust the cavity of the mold, and pouring and filling the aluminum alloy liquid by adopting injection; and after pressure maintaining and cooling, opening the mold, discharging, and removing a
casting head. Through material-process-structure collaborative innovation, the prepared aluminum alloy
electric power fitting has high strength and
toughness, and the requirements of
power transmission and transformation lines for high mechanical performance and light weight of the electric power fitting are met.