Solar cells containing metal oxides
US-2015380584-A1 · Dec 31, 2015 · US
Surface-smoothened metal member and method for manufacturing same
US2025146161A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025146161-A1 |
| Application number | US-202218836744-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 22, 2022 |
| Priority date | Feb 15, 2022 |
| Publication date | May 8, 2025 |
| Grant date | — |
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Abstract
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In a surface-smoothened metal member and a method for manufacturing the same, said surface-smoothened metal member has been smoothened to such an extent that in a surface of a large metal member formed from titanium or a titanium alloy, a flat surface portion has a maximum height roughness (Rz) of 1.1 μm or less and a portion with a curvature radius of 0.05 to 2.5 mm has a maximum height roughness (Rz) of less than 2 μm. This method for manufacturing the surface-smoothened metal member is characterized in that an anodic oxide film is formed on a surface of a substrate formed from titanium or a titanium alloy by applying an anodization treatment to the substrate, and the surface of the substrate is smoothened by removing the anodic oxide film.
First claim
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1 . A surface-smoothened metal member comprising titanium or a titanium alloy, characterized in that: a maximum length of the metal member is 50 to 1000 mm; a maximum height roughness (Rz) of a flat surface portion of the metal member is 1.1 μm or less; and a maximum height roughness (Rz) of a portion of the surface of the metal member having a radius of curvature of 0.05 to 2.5 mm is less than 2 μm. 2 . The surface-smoothened metal member according to claim 1 , wherein the metal member has a through hole and/or an opening, and a maximum height roughness (Rz) of an inner wall of the through hole and/or the opening is also less than 2 μm. 3 . A surface-smoothened metal member comprising titanium or a titanium alloy, characterized in that a maximum length of the metal member is 50 to 1000 mm; and an arithmetic mean roughness (Ra) of a portion of the surface of the metal member having a radius of curvature of 0.05 to 2.5 mm is less than 0.4 μm. 4 . The surface-smoothened metal member according to claim 3 , wherein the metal member has a through hole and/or an opening, and the arithmetic mean roughness (Ra) of an inner wall of the through hole and/or the opening is also less than 0.4 μm. 5 . The surface-smoothened metal member according to claim 2 , wherein an equivalent circle diameter of the through hole and/or the opening is 0.1 to 5 mm. 6 . The surface-smoothened metal member according to claim 2 , wherein a depth of the through hole and/or the opening is 1 to 50 mm. 7 . The surface-smoothened metal member according to claim 1 , wherein the metal member is a frame body. 8 . A method for manufacturing a surface-smoothened metal member, comprising: subjecting a substrate made of titanium or a titanium alloy to anodization treatment to form an anodic oxide film on the surface of the substrate; and smoothening the surface of the substrate by detaching the anodic oxide film. 9 . The method for manufacturing a surface-smoothened metal member according to claim 8 , wherein a thickness of the anodic oxide film is set to 2 to 10 μm. 10 . The method for manufacturing a surface-smoothened metal member according to claim 8 , wherein an applied voltage in the anodization treatment is set to 20 to 100 V. 11 . The method for manufacturing a surface-smoothened metal member according to claim 8 , wherein the formation and detachment of the anodic oxide film is repeated until an arithmetic mean roughness (Ra) of less than 0.4 μm and/or a maximum height roughness (Rz) of less than 2 μm is obtained on the surface of the substrate. 12 . The surface-smoothened metal member according to claim 4 , wherein an equivalent circle diameter of the through hole and/or the opening is 0.1 to 5 mm. 13 . The surface-smoothened metal member according to claim 4 , wherein a depth of the through hole and/or the opening is 1 to 50 mm. 14 . The surface-smoothened metal member according to claim 3 , wherein the metal member is a frame body.
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- What does patent US2025146161A1 cover?
- In a surface-smoothened metal member and a method for manufacturing the same, said surface-smoothened metal member has been smoothened to such an extent that in a surface of a large metal member formed from titanium or a titanium alloy, a flat surface portion has a maximum height roughness (Rz) of 1.1 μm or less and a portion with a curvature radius of 0.05 to 2.5 mm has a maximum height roughn…
- Who is the assignee on this patent?
- Nippon Light Metal Co
- What technology area does this patent fall under?
- Primary CPC classification C25D11/26. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu May 08 2025 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).