公开(公告)号：US20180305837A1

公开(公告)日：2018-10-25

申请号：US16020262

申请日：2018-06-27

Applicant: BYD COMPANY LIMITED

Inventor： XIONG XIONG ,  CHONGCHONG LIAO ,  LE ZHANG ,  LIANG CHEN

IPC: C25D11/12 ,  C25D11/14 ,  C25D11/16

CPC classification number: C25D11/12 ,  B44C1/227 ,  C23F1/20 ,  C25D11/14 ,  C25D11/16 ,  C25D11/18 ,  C25D11/24 ,  H04M1/0202

Abstract: This disclosure provides an aluminum alloy housing and a preparation method for same. An external surface of the aluminum alloy housing has a convex portion and a concave portion, the convex portion has a convex oxide film, the concave portion has a concave oxide film, a surface of the convex oxide film has a glossiness of 90-150, and a surface of the concave oxide film has a glossiness of 5-25.