Al-Si series aluminum alloy liquid and preparation method thereof

The invention belongs to the technical field of aluminum alloy materials, and particularly relates to Al-Si series aluminum alloy liquid which is composed of silicon, magnesium, zinc, antimony, rhenium, tellurium and aluminum, and the Al-Si series aluminum alloy liquid is prepared from, by mass, 4.8%-6.2% of silicon, 0.40%-0.65% of magnesium, 1.2%-1.8% of zinc, 0.10%-0.25% of antimony, 0.2%-0.8% of rhenium, 0.05%-0.10% of tellurium and the balance aluminum. The aluminum alloy liquid can be directly used for semi-solid casting, secondary smelting is not needed, the production efficiency is improved, the strength is guaranteed, meanwhile, the ductility is improved, and the casting forming effect is better. 本发明属于铝合金材料技术领域，具体涉及一种Al-Si系铝合金液，所述铝合金液由硅、镁、锌、锑、铼、碲和铝组成，成分按照质量百分比计为：硅4.8-6.2％、镁0.40-0.65％、锌1.2-1.8％、锑0.10-0.25％、铼0.2-0.8％、碲0.05-0.10％，余量为铝。本发明的铝合金液能够直接用于半固态铸造，不需要再次的熔炼，提升了生产效率，并且在保证强度的同时，提升了延伸率，使得铸造成型效果更好。