Title:
SURFACE TREATMENT METHOD OF ALUMINUM MATERIAL
Document Type and Number:
WIPO Patent Application WO/2022/255681
Kind Code:
A1
Abstract:
A surface treatment method of an aluminum material according to an embodiment of the present invention comprises: a step of degreasing an aluminum material; a step of etching the degreased aluminum material; a first desmutting step of depositing the etched aluminum material in 25 to 35 wt% of a nitric acid solution at 25 to 30°C for 60 seconds or longer; a second desmutting step of depositing the first-desmutted aluminum material in 5 to 15 wt% of a nitric acid solution at 25 to 30°C for 30 to 60 seconds; a step of anodizing the second-desmutted aluminum material; a step of coloring the anodized aluminum material; and a step of sealing the colored aluminum material.
Inventors:
KIM JINJU (KR)
LEE KYUNGHWAN (KR)
CHO CHEOLHEE (KR)
KOH YOUNGDEOG (KR)
KIM KWANGJOO (KR)
LEE KYUNGHWAN (KR)
CHO CHEOLHEE (KR)
KOH YOUNGDEOG (KR)
KIM KWANGJOO (KR)
Application Number:
PCT/KR2022/006746
Publication Date:
December 08, 2022
Filing Date:
May 11, 2022
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
C25D11/24; C25D11/08; C25D11/16; E03C1/04
Domestic Patent References:
| WO2004063427A1 | 2004-07-29 |
Foreign References:
| KR101813108B1 | 2017-12-29 | |||
| KR101786733B1 | 2017-11-02 | |||
| KR20100085702A | 2010-07-29 | |||
| US20160129853A1 | 2016-05-12 |
Attorney, Agent or Firm:
SELIM INTELLECTUAL PROPERTY LAW FIRM (KR)
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