US 12,448,668 B2
Aluminum alloy and application thereof
Qiang Guo, Shenzhen (CN); Mengde Wang, Shenzhen (CN); Tao Yang, Shenzhen (CN); Rong Wang, Shenzhen (CN); Wei An, Shenzhen (CN); and Jingsong Fu, Shenzhen (CN)
Assigned to BYD AUTO INDUSTRY COMPANY LIMITED, Shenzhen (CN); and HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Appl. No. 17/787,536
Filed by BYD AUTO INDUSTRY COMPANY LIMITED, Guangdong (CN); and HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
PCT Filed Mar. 24, 2020, PCT No. PCT/CN2020/080947
§ 371(c)(1), (2) Date Jun. 20, 2022,
PCT Pub. No. WO2021/120437, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 201911327356.5 (CN), filed on Dec. 20, 2019.
Prior Publication US 2022/0380869 A1, Dec. 1, 2022
Int. Cl. C22C 21/02 (2006.01)
CPC C22C 21/02 (2013.01) 17 Claims
OG exemplary drawing
 
1. An aluminum alloy, based on the total weight of the aluminum alloy, the aluminum alloy consisting of:
8-11% of Si;
2-4% of Cu;
0.6-4% of Zn;
0.65-1.1% of Mn;
0.35-0.65% of Mg;
0.001-0.05% of Cr;
0.01-0.03% of Sr;
0.08-0.12% of Ti;
0.008-0.02% of B;
0.1-0.3% of Fe;
0.01-0.02% of Ga;
0.008-0.015% of Sn; and
the balance of Al and less than 0.1% of other elements.