Patent ID: 11781202

Abstract:
Disclosed is an aluminum alloy for a new energy vehicle integral die-cast part, a preparation method therefor and an application thereof. The alloy includes 7-9 wt % of Si, 0.05-0.25 wt % of Mg, Cu<0.5 wt %, Zn<0.5 wt %, 0.001-0.20 wt % of B, 0.05-0.2 wt % of Ti, 0.1-0.9 wt % of Mn, 0.05-0.3 wt % of Fe, 0.005-0.5 wt % of Sr, Ce<0.5 wt %, 0.01-0.1 wt % of Zr, 0.001-0.3 wt % of Mo, a sum of weight percentages of remaining impurities being controlled to be 1.0 wt % or less, and the balance being Al. Compared with the prior art, the alloy significantly improves an elongation of a material and effectively improves a strength of the material, such that the material has a tensile strength of 260-300 MPa, a yield strength of 110-130 MPa and an elongation of 10-14%.