ANODIC FILM WITH ENHANCED FEATURES

To distribute defects within an anodic film associated with alloying elements of a high-performance aluminum alloy in a larger non-porous film compared to conventional anodic films, so as to lessen the possibility of corrosion inducing agents to reach the high-performance aluminum alloy.SOLUTION: A...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: OSHIMA TAKAHIRO, ITO YASUHIRO, HARA KENJI, JODY R AKANA, HONGO AYUMI, TATEBE MASANARI, NAKAGISHI YUTAKA, JAMES A CURRAN, KATAYAMA JUNICHI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:To distribute defects within an anodic film associated with alloying elements of a high-performance aluminum alloy in a larger non-porous film compared to conventional anodic films, so as to lessen the possibility of corrosion inducing agents to reach the high-performance aluminum alloy.SOLUTION: A barrier layer smoothing operation is used to flatten an interface between the anodic film and underlying metal substrate. The method involves depositing a pigment having a particle diameter of about 20 nm or greater into the anodic film. The anodic film has multiple metal oxide layers. A first layer provides scratch and chemical resistance and a second layer provides a light diffusing pore structure that diffusely reflects incoming light and provides a white appearance to the anodic film. The anodic film has a dense porous layer and a thickened barrier layer. The porous layer acts as a cosmetic portion of the anodic film and have pores that have a colorant infused therein.SELECTED DRAWING: None 【課題】既存の陽極被膜に比べてより大きな非多孔質被膜中で、高性能アルミニウム合金の合金元素に関連する陽極被膜内の欠陥を分散することができ、これにより腐食誘発剤が高性能アルミニウム合金に到達する可能性を低下させる。【解決手段】バリア層平滑化工程を用い、陽極被膜と基礎をなす金属基板との間にある境界面を平坦化し、粒子径が約20ナノメートル以上である顔料を、陽極被膜中に堆積させる。陽極被膜は複数の金属酸化物層を有し、第1層は耐傷性及び耐薬品性をもたらし、第2層は、入射光を拡散反射させる光拡散細孔構造をもたらし、陽極被膜に白色の外観をもたらす。陽極被膜は、高密度の多孔質層及び厚化されたバリア層を有し、多孔質層は、陽極被膜の美的部分としての役割を果たし、着色剤が内部に注入された細孔を有する。【選択図】なし