公开(公告)号：EP3805416A1

公开(公告)日：2021-04-14

申请号：EP19812256.6

申请日：2019-05-29

Applicant: BYD Company Limited

Inventor： GUO, Qiang ,  XIE, Yongliang ,  LI, Yunchun ,  LIAO, Mengjue

IPC: C22C21/02 ,  C22C21/04 ,  C22C1/02

Abstract: A die-cast aluminum alloy and a preparation method and application thereof are disclosed. Based on the total weight of the aluminum alloy, the aluminum alloy includes: 8-11 wt% of Si, 2.5-5 wt% of Cu, 0.5-1.5 wt% of Mg, 0.1-0.3 wt% of Ni, 0.6-1.2 wt% of Fe, 0.1-0.3 wt% of Cr, 0.03-0.05 wt% of Sr, 0-0.3 wt% of Er, 80.25-88.1 wt% of Al, and 0.1 wt% or below of impurities.

公开(公告)号：EP3995598A1

公开(公告)日：2022-05-11

申请号：EP19936660.0

申请日：2019-11-14

Applicant: BYD Company Limited

Inventor： YANG, Yang ,  GUO, Qiang ,  WANG, Xiaodong ,  LIAO, Mengjue

IPC: C22C21/02

Abstract: An aluminum alloy, a preparation method thereof, and an aluminum alloy structural member are provided. Based on the total weight of the aluminum alloy, the aluminum alloy includes, in percentages by weight: 9-12% of Si; 8-11% of Zn; 0.5-1.5% of Mg; 0.2-0.8% of Cu; 0-0.6% of Fe; 0.08-0.25% of Mn; 0-0.10% of Sr; 0-0.05% of Sc; 0-0.5% of Er; and 73.2-82.22% of Al.

公开(公告)号：EP3647440A1

公开(公告)日：2020-05-06

申请号：EP18822966.0

申请日：2018-04-25

Applicant: BYD Company Limited

Inventor： GUO, Qiang ,  XIE, Yongliang ,  LIAO, Mengjue

IPC: C22C1/02 ,  C22C1/03 ,  C22C21/04

Abstract: An aluminum alloy and a preparation method thereof are provided. The aluminum alloy of the present disclosure includes, in percentage by weight, 8-10% of silicon, 0.2-0.4% of magnesium, 0-0.01% of manganese, 0-0.01% of titanium, 0.1-0.3% of iron, 0.02-0.06% of boron, 0.15-0.3% of cerium, and 88.92-91.53% of aluminum.