Method for coating zinc die-cast parts, multi-layered coating for the protection of zinc die-cast parts, and coated zinc die-cast part
US-2024254631-A1 · Aug 1, 2024 · US
Corrosion-resistant member
US12305074B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12305074-B2 |
| Application number | US-202118011372-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 21, 2021 |
| Priority date | Aug 20, 2020 |
| Publication date | May 20, 2025 |
| Grant date | May 20, 2025 |
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- Title
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Abstract
Official abstract text for this publication.
There is provided a corrosion-resistant member in which a corrosion-resistant coating film is less likely to peel off from a base material even when the corrosion-resistant member is subjected to a thermal history. The corrosion-resistant member includes: a base material ( 10 ) containing aluminum or an aluminum alloy; and a corrosion-resistant coating film ( 20 ) formed on the surface of the base material ( 10 ), in which the corrosion-resistant coating film ( 20 ) contains aluminum fluoride hydroxide AlF 3-x (OH) x in which a space group belongs to R-3c, and x in the chemical formula is 0.05 or more and 1.00 or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A corrosion-resistant member comprising: a base material containing aluminum or an aluminum alloy; and a corrosion-resistant coating film formed on a surface of the base material, wherein the corrosion-resistant coating film contains aluminum fluoride hydroxide AlF 3-x (OH) x in which a space group belongs to R-3c, and x in the AlF 3-x (OH) x is 0.05 or more and 1.00 or less. 2. The corrosion-resistant member according to claim 1 , wherein x in the AlF 3-x (OH) x is 0.10 or more and 0.70 or less. 3. The corrosion-resistant member according to claim 2 , wherein a half width of a maximum intensity peak obtained by analyzing the aluminum fluoride hydroxide by an X-ray diffraction method is 0.50° or less. 4. The corrosion-resistant member according to claim 2 , wherein the base material contains an aluminum alloy containing magnesium, and an intermediate layer containing magnesium fluoride is arranged between the base material and the corrosion-resistant coating film. 5. The corrosion-resistant member according to claim 1 , wherein x in the AlF 3-x (OH) x is 0.15 or more and 0.50 or less. 6. The corrosion-resistant member according to claim 5 , wherein a half width of a maximum intensity peak obtained by analyzing the aluminum fluoride hydroxide by an X-ray diffraction method is 0.50° or less. 7. The corrosion-resistant member according to claim 5 , wherein the base material contains an aluminum alloy containing magnesium, and an intermediate layer containing magnesium fluoride is arranged between the base material and the corrosion-resistant coating film. 8. The corrosion-resistant member according to claim 1 , wherein a half width of a maximum intensity peak obtained by analyzing the aluminum fluoride hydroxide by an X-ray diffraction method is 0.50° or less. 9. The corrosion-resistant member according to claim 8 , wherein the base material contains an aluminum alloy containing magnesium, and an intermediate layer containing magnesium fluoride is arranged between the base material and the corrosion-resistant coating film. 10. The corrosion-resistant member according to claim 1 , wherein the base material contains an aluminum alloy containing magnesium, and an intermediate layer containing magnesium fluoride is arranged between the base material and the corrosion-resistant coating film.
Assignees
Inventors
Classifications
Priming paints (C09D5/08 takes precedence) · CPC title
Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances · CPC title
with magnesium as the next major constituent · CPC title
After-treatment · CPC title
with after-treatment of the deposited inorganic material · CPC title
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Frequently asked questions
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- What does patent US12305074B2 cover?
- There is provided a corrosion-resistant member in which a corrosion-resistant coating film is less likely to peel off from a base material even when the corrosion-resistant member is subjected to a thermal history. The corrosion-resistant member includes: a base material ( 10 ) containing aluminum or an aluminum alloy; and a corrosion-resistant coating film ( 20 ) formed on the surface of the b…
- Who is the assignee on this patent?
- Showa Denko Kk, Resonac Corp
- What technology area does this patent fall under?
- Primary CPC classification C23C22/34. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 20 2025 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).