Coating method for clad steel and coating solution for coating clad steel
US-10273590-B2 · Apr 30, 2019 · US
Surface treatment method of aluminum for bonding different materials
US10760163B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10760163-B2 |
| Application number | US-201816156699-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 10, 2018 |
| Priority date | Oct 27, 2017 |
| Publication date | Sep 1, 2020 |
| Grant date | Sep 1, 2020 |
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- Title
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Abstract
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Disclosed is a method of fabricating an aluminum alloy member for bonding different materials. The method may include etching the aluminum alloy member with one or more etching solutions, and forming one or more undercuts on a surface of the aluminum alloy member.
First claim
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What is claimed is: 1. A method of fabricating an aluminum alloy member, comprising: etching a surface of the aluminum alloy member using one or more etching solutions; and forming one or more undercuts on the surface of the aluminum alloy member, wherein the one or more undercuts are formed by: a first etching of immersing the aluminum alloy member in an CrO 3 aqueous solution; a second etching of immersing the aluminum alloy member in an FeCl 3 aqueous solution; and a third etching of immersing the aluminum alloy member in an HCl aqueous solution. 2. The method of claim 1 , wherein the first etching comprises immersing the aluminum alloy member in the CrO 3 aqueous solution of at a temperature of about 20 to 30° C. 3. The method of claim 2 , wherein the first etching comprises immersing the aluminum alloy member in the CrO 3 aqueous solution for about 3 minutes. 4. The method of claim 2 , wherein the CrO 3 aqueous solution has a concentration of CrO 3 of about 150 g/l to 200 g/l. 5. The method of claim 1 , wherein the second etching comprises immersing the aluminum alloy member in the FeCl 3 aqueous solution of a temperature of about 20 to 30° C. 6. The method of claim 5 , wherein the second etching comprises immersing the aluminum alloy member in the FeCl 3 aqueous solution for about 0.5 to 1 minutes. 7. The method of claim 5 , wherein the FeCl 3 aqueous solution has a concentration of FeCl 3 of about 50 g/l-150 g/l. 8. The method of claim 1 , wherein the third etching comprises immersing the aluminum alloy member in the HCl aqueous solution of a temperature of about 20 to 30° C. 9. The method of claim 8 , wherein the third etching comprises immersing the aluminum alloy member in the HCl aqueous solution for about 0.5-1 minutes. 10. The method of claim 8 , wherein the HCl aqueous solution has a concentration of HCl of about 50 g/l to 150 g/l. 11. The method of claim 1 , further comprising coating TiO 2 powder on the one or more undercuts. 12. The method of claim 11 , wherein the coating the TiO 2 powder comprises immersing the aluminum alloy member in an TiO 2 aqueous solution comprising the TiO 2 powder. 13. The method of claim 12 , wherein the TiO 2 aqueous solution has a concentration of the TiO 2 powder of about 20 mg/l. 14. The method of claim 13 , wherein the coating the TiO 2 powder comprises immersing the aluminum alloy member in the TiO 2 aqueous solution at a temperature of about 20 to 30° C. 15. The method of claim 14 , wherein the coating the TiO 2 powder comprises immersing the aluminum alloy member in the TiO 2 aqueous solution for about 0.5 to 1 minutes.
Assignees
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Classifications
using aqueous solutions with pH between 6 and 8 · CPC title
Chemical after-treatment · CPC title
based on Al · CPC title
ceramic layer · CPC title
performed by dipping · CPC title
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Frequently asked questions
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- What does patent US10760163B2 cover?
- Disclosed is a method of fabricating an aluminum alloy member for bonding different materials. The method may include etching the aluminum alloy member with one or more etching solutions, and forming one or more undercuts on a surface of the aluminum alloy member.
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Kia Motors Corp
- What technology area does this patent fall under?
- Primary CPC classification C23F1/20. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 01 2020 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).