公开(公告)号：US20180310425A1

公开(公告)日：2018-10-25

申请号：US16020188

申请日：2018-06-27

Applicant: BYD COMPANY LIMITED

Inventor： CHONGCHONG LIAO ,  XIONG XIONG ,  FENGYUN SHI ,  YOUCHENG HU

IPC: H05K5/04 ,  H05K5/02 ,  C25D11/02 ,  C25D11/16

CPC classification number: H05K5/04 ,  C25D11/022 ,  C25D11/16 ,  H05K5/0243

Abstract: This disclosure provide 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, and surfaces of the convex oxide film and the concave oxide film have a glossiness of 90-150.