公开(公告)号：US20240344229A1

公开(公告)日：2024-10-17

申请号：US18634062

申请日：2024-04-12

Applicant: CATCHER TECHNOLOGY CO., LTD.

Inventor： WEN-DING CHEN ,  BO-WEI LAI ,  Shih-Wei Lee

IPC: C25D11/12 ,  C25D11/08 ,  C25D11/10 ,  C25D11/24

CPC classification number: C25D11/12 ,  C25D11/08 ,  C25D11/10 ,  C25D11/243 ,  C25D11/246

Abstract: A manufacturing method of an aluminum-based article having multi-angle visual color change characteristics is provided. The manufacturing method includes the steps of providing an aluminum-based article and performing a first anodizing treatment that at least includes cycling a first operation mode 50 times to 80 times on the aluminum-based article. The first operation mode includes a first constant-current density stage followed by a current density continuous-increasing stage. In the first constant-current density stage, a first current density is controlled to be constant in a range from 0.1 A/dm2 to 1.0 A/dm2 for 60 seconds to 120 seconds. In the current density continuous-increasing stage, the first current density is controlled to continuously increase by 5 to 10 increments, and each of the increments is in a range from 0.1 A/dm2 to 0.5 A/dm2 and within a time period from 3 seconds to 10 seconds.