Electrode material for aluminum electrolytic capacitors and method for producing same
US-2024301561-A1 · Sep 12, 2024 · US
Aluminum alloy strip with improved surface appearance
US11260439B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11260439-B2 |
| Application number | US-201414448244-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 31, 2014 |
| Priority date | Feb 2, 2012 |
| Publication date | Mar 1, 2022 |
| Grant date | Mar 1, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The invention relates to an aluminum alloy strip with improved surface optics, which is fabricated via hot and/or cold rolling, and consists of a type AA 3xxx, AA 5xxx, AA 6xxx or AA 8xxx aluminum alloy. The object of proposing an aluminum alloy strip that is suitable for attractive and precious surface optics despite the elevated percentage of alloy constituents is achieved in that, after degreasing, the finish-rolled aluminum alloy strip exhibits an increase in the luminance value L*(ΔL) in relation to the rolled-greasy state of more than 5 while measuring the color of the surface in the CIE L*a*b* color space using a standard illuminant D65 and a normal observation angle of 10°, excluding direct reflection in 45°/0° geometry.
First claim
Opening claim text (preview).
The invention claimed is: 1. An aluminum alloy strip or sheet, which is fabricated via hot and/or cold rolling under the usage of rolling oil, and consists of a type AA 5182 aluminum alloy, wherein, after degreasing with an alkaline pickle and a subsequent acid rinse of the aluminum alloy strip or sheet, the finished-rolled aluminum alloy strip or sheet exhibits a pickled surface without any varnish or other coating and an increase in the luminance value L* (ΔL) in relation to the rolled-greasy state of more than 5 and reaches luminance value of greater than 40 while measuring the color of the surface in the CIE L*a*b* color space using a standard illuminant D65 and an observation angle of 10°, excluding direct reflection in 45°/0° geometry. 2. The aluminum alloy strip or sheet according to claim 1 , wherein the aluminum alloy strip or sheet is at least one of intermediately and finally annealed. 3. The aluminum alloy strip or sheet according to claim 1 , wherein the aluminum alloy strip or sheet exhibits a thickness of 0.05 mm to 0.9 mm.
Assignees
Inventors
Classifications
- C22C21/00Primary
Alloys based on aluminium · CPC title
Light metals · CPC title
Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process (C23C26/00, C23C28/00 take precedence) · CPC title
Synthetic resin · CPC title
Al-base component · CPC title
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- What does patent US11260439B2 cover?
- The invention relates to an aluminum alloy strip with improved surface optics, which is fabricated via hot and/or cold rolling, and consists of a type AA 3xxx, AA 5xxx, AA 6xxx or AA 8xxx aluminum alloy. The object of proposing an aluminum alloy strip that is suitable for attractive and precious surface optics despite the elevated percentage of alloy constituents is achieved in that, after degr…
- Who is the assignee on this patent?
- Boegershausen Dieter, Schwarz Jochen, Kernig Bernhard, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification C22C21/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 01 2022 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).