公开(公告)号：US20210130974A1

公开(公告)日：2021-05-06

申请号：US16481137

申请日：2017-11-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hakju KIM ,  Se Jin KIM ,  Hosoon LEE ,  Seon-Jung KIM ,  Wanju SIN ,  Kyuin LEE ,  Jiwoon LIM ,  Jong Wan JEONG

IPC: C25D11/18 ,  C25D11/26 ,  C23C28/04 ,  H04M1/02 ,  C25D11/30

Abstract: According to various embodiments, a method for manufacturing a metal housing can be provided, comprising: a step of forming a metal base made of a metal material; a step of pretreating the surface of the metal base such that the surface has a predetermined gloss and flatness; an anodizing step of forming a predetermined oxide film on the flat surface of the metal base; a step of coloring the oxide film by using a colorant having a desired color; a sealing step for maintaining the performance and characteristics of the colorant on the colored oxide film; and a step of laminating at least one deposition layer on the upper part of the sealed oxide film.