Hole sealing treatment method for aluminum and aluminum alloy anodized films

The invention provides a hole sealing treatment method for aluminum and aluminum alloy anodized films. The hole sealing treatment method for the aluminum and aluminum alloy anodized films is characterized by taking an aqueous solution of an aqueous nano-coating or an alcohol solution of organic sol gel as a hole sealing solution, and hole sealing treatment is performed on the aluminum and aluminum alloy anodized films according to the following specific process: soaking an anodized aluminum or aluminum alloy workpiece into the aqueous solution of the aqueous nano-coating or the alcohol solution of the organic sol gel for the hole sealing treatment, wherein the treatment temperature is 20-25 DEG C and the treatment time is 10-20 seconds; and then taking out and baking the aluminum alloy workpiece for 30 minutes at 110-150 DEG C. The hole sealing treatment method for the aluminum and aluminum alloy anodized films is simple in process, relatively low in energy consumption, and accordant with requirements on environmental protection; and after the hole sealing treatment on aluminum and aluminum alloy workpieces, the corrosion resistance of surfaces of the aluminum and aluminum alloy workpieces are relatively high, water marks are avoided and the dyeing treatment effect of the anodized films is not affected.