Hierarchically structured duplex anodized aluminum alloy
US-10094037-B2 · Oct 9, 2018 · US
Mixed acid anodization
US12134828B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12134828-B2 |
| Application number | US-202017097614-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 13, 2020 |
| Priority date | Nov 13, 2020 |
| Publication date | Nov 5, 2024 |
| Grant date | Nov 5, 2024 |
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- Title
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Abstract
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Disclosed are methods of anodizing a metal component. In the methods an anodization bath includes an organic acid.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of making an anodized metal component comprising: anodizing a metal component in an anodizing bath to form an anodization layer; wherein the anodizing bath comprises two or more inorganic acids selected from the group consisting of sulfuric, boric and phosphoric acids, and an organic acid selected from the group consisting of oxalic acid, acetic acid, tartaric acid, malic acid, tannic acid, an α-amino acid, an aromatic alpha hydroxy acid, phenylalanine, and salicylic acid; wherein anodizing is performed by applying a DC voltage ramped up from 0 to a plateau voltage over a period of 1 to 5 minutes, the plateau voltage varying from 13 to 20 volts and is maintained for a duration of 10 to 25 minutes; wherein the anodizing bath comprises 10 g/L to 60 g/L of sulfuric acid and 80 g/L to 100 g/L of organic acid. 2. The method of claim 1 , wherein the metal component comprises aluminum or an aluminum alloy. 3. The method of claim 1 , wherein the inorganic acids comprise sulfuric acid and boric acid. 4. The method of claim 3 , wherein the anodizing bath comprises 50 g/L to 60 g/L of sulfuric acid, and 15 g/L boric acid. 5. The method of claim 1 , wherein anodizing is performed at a temperature of 70° F. to 90° F.
Assignees
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Classifications
Anodising more than once, e.g. in different baths · CPC title
containing organic acids · CPC title
Anodic paints (C09D5/4403 - C09D5/4476 take precedence) · CPC title
After-treatment, e.g. pore-sealing · CPC title
- C25D11/08Primary
containing inorganic acids · CPC title
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Frequently asked questions
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- What does patent US12134828B2 cover?
- Disclosed are methods of anodizing a metal component. In the methods an anodization bath includes an organic acid.
- Who is the assignee on this patent?
- Rtx 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 Tue Nov 05 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).