White aluminum component and method for manufacturing the same

By employing a dual electrolysis process with controlled thickness variations, the method achieves high whiteness and uniformity in aluminum components, addressing the limitations of conventional methods and reducing costs.

JP7876285B2Active Publication Date: 2026-06-19NIHON KAGAKU SANGYO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
NIHON KAGAKU SANGYO LTD
Filing Date
2022-01-20
Publication Date
2026-06-19

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Patent Text Reader

Abstract

To provide a white aluminum member having a high degree of whiteness by using a simple electrolytic condition and not having a burn failure.SOLUTION: An aluminum member includes a base material containing aluminum or an aluminum alloy and an anodic oxide film consisting of a barrier layer and a porous layer on the surface of the base material. The variance of the film thickness of the anodic oxide film, which is a standard deviation from the mean film thickness of the anodic oxide film, is 0.05-0.2 μm.SELECTED DRAWING: Figure 4
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