SURFACE-TREATED ALUMINUM MATERIAL AND METHOD FOR MANUFACTURING THE SAME

To provide a surface-treated aluminum material with excellent adhesion with other materials.SOLUTION: A surface-treated aluminum material comprises an aluminum material, and an oxide film formed at least in a part on a surface of the aluminum material. When a boundary length and an area of a gap on...

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Bibliographic Details
Main Authors SAITO SOHEI, NAKAJIMA DAIKI
Format Patent
LanguageEnglish
Japanese
Published 18.01.2022
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
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Summary:To provide a surface-treated aluminum material with excellent adhesion with other materials.SOLUTION: A surface-treated aluminum material comprises an aluminum material, and an oxide film formed at least in a part on a surface of the aluminum material. When a boundary length and an area of a gap on a surface of the oxide film are L and S, respectively, a degree of irregularity defined by L2/S×(1/4π) is higher than or equal to 2.5.SELECTED DRAWING: Figure 1 【課題】他の材料との密着性が優れた表面処理アルミニウム材を提供すること。【解決手段】アルミニウム材と、アルミニウム材の表面の少なくとも一部に形成された酸化皮膜とを有する表面処理アルミニウム材であって、酸化皮膜の表面における空隙の周囲長をＬ、面積をＳとしたときに、Ｌ２／Ｓ×（１／４π）で定義される空隙の凹凸度が２．５以上である、表面処理アルミニウム材。【選択図】図１
Bibliography:Application Number: JP20200115109