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US-2024344229-A1 · Oct 17, 2024 · US
Aluminum member and method of manufacturing aluminum member
US2021147997A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021147997-A1 |
| Application number | US-202117160220-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 27, 2021 |
| Priority date | Jul 31, 2018 |
| Publication date | May 20, 2021 |
| Grant date | — |
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Abstract
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The present disclosure relates to an aluminum member including a mother material containing aluminum or an aluminum alloy, and an anodic oxide film on the surface of the mother material. The anodic oxide film has a barrier layer on the surface of the mother material, and a porous layer on the barrier layer), and the BET specific surface area of the anodic oxide film is 0.1 to 10.0 m 2 /g.
First claim
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What is claimed is: 1 . An aluminum member comprising: a mother material containing aluminum or an aluminum alloy; and an anodic oxide film on a surface of the mother material, wherein the anodic oxide film has a barrier layer on a surface of the mother material, and a porous layer on the barrier layer, and a BET specific surface area of the anodic oxide film is 0.1 to 10.0 m 2 /g. 2 . The aluminum member according to claim 1 , wherein a Hunter whiteness of the aluminum member, measured from a surface side of the anodic oxide film, is 65 or more. 3 . A method of manufacturing the aluminum member according to claim 1 , comprising: a step of preparing a mother material comprising aluminum or an aluminum alloy; and a step of performing an anodic oxidation treatment on the mother material in an electrolytic solution including: (a) a first acid being an inorganic acid or a salt of the first acid; and (b) at least one second acid selected from the group consisting of diphosphoric acid, triphosphoric acid, and polyphosphoric acid, or a salt of the second acid. 4 . The method of manufacturing the aluminum member according to claim 3 , wherein in the step of performing the anodic oxidation treatment, a concentration of the first acid or a salt of the first acid in the electrolytic solution is 0.005 to 7.0 mol·dm −3 , and a concentration of the second acid or a salt of the second acid in the electrolytic solution is 0.005 to 10.0 mol·dm −3 . 5 . The method of manufacturing the aluminum member according to claim 3 , wherein in the step of performing the anodic oxidation treatment, a current density is 2 to 150 mA·cm −2 , and an electrolysis time is 10 to 700 minutes.
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- What does patent US2021147997A1 cover?
- The present disclosure relates to an aluminum member including a mother material containing aluminum or an aluminum alloy, and an anodic oxide film on the surface of the mother material. The anodic oxide film has a barrier layer on the surface of the mother material, and a porous layer on the barrier layer), and the BET specific surface area of the anodic oxide film is 0.1 to 10.0 m 2 /g.
- Who is the assignee on this patent?
- Uacj Corp
- What technology area does this patent fall under?
- Primary CPC classification C25D11/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu May 20 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).