Self-repairing confining liquid and method for confining aluminium alloy anodic oxide film by using the same

The invention discloses a self-repairing confining liquid and a method for confining an aluminium alloy anodic oxide film by using the same. The self-repairing confining liquid is formed by dissolving 5g-15g of ammonium adipate in 100ml of deionized water. The confining method is to carry out confining treatment on anodized aluminium alloy under the action of an electric field. The confining method confines the micropores of the oxide film, and in the anodic oxide process, since holes caused by the fusion and the dropping of second-phase particles are filled and repaired, a confining bed with a net structure is formed on the surface so that the confined aluminium alloy anodic oxide film has the self-repairing capacity and higher decay resistance.