METHOD FOR SURFACE TREATMENT OF MAGNESIUM OR MAGNESIUM ALLOY BY ANODIZATION
    1.
    发明申请
    METHOD FOR SURFACE TREATMENT OF MAGNESIUM OR MAGNESIUM ALLOY BY ANODIZATION 审中-公开
    通过阳离子表面处理镁或镁合金的方法

    公开(公告)号:US20110114497A1

    公开(公告)日:2011-05-19

    申请号:US12785239

    申请日:2010-05-21

    IPC分类号: C25D11/30 C25D5/48

    CPC分类号: C25D11/30 C25D11/026

    摘要: Disclosed herein is a method for the surface treatment of magnesium or a magnesium alloy by anodization to form an anodized oxide coating on the magnesium or magnesium alloy. The method comprises: removing impurities and an oxide layer present on the surface of magnesium or a magnesium alloy using a strongly alkaline aqueous solution (pretreatment); and immersing the pretreated magnesium or magnesium alloy in an alkaline electrolyte and applying a direct current having a current density of 3 A/dm2 or less to the electrolyte to form a magnesium oxide coating (microarc plasma anodization).

    摘要翻译: 本文公开了一种通过阳极氧化来表面处理镁或镁合金以在镁或镁合金上形成阳极化氧化物涂层的方法。 该方法包括:使用强碱性水溶液除去镁或镁合金表面上的杂质和氧化物层(预处理); 并将预处理的镁或镁合金浸入碱性电解质中,并向电解液施加电流密度为3A / dm 2或更小的直流电以形成氧化镁涂层(微弧等离子体阳极氧化)。