12-08-2015 дата публикации
Номер: CN104831328A
Принадлежит:
The invention discloses an integrated hole sealing method for anodic oxide films of aluminum alloys. The integrated hole sealing method is excellent in hole sealing effect and high in timeliness and includes the steps: firstly, preparing phosphate solution and cerium salt solution; secondly, putting the anodic oxide films of the aluminum alloy into the cerium salt solution to carry out cerium salt hole sealing; thirdly, uniformly brushing the phosphate solution onto the anodic oxide films subjected to cerium salt hole sealing, curing for a while in the air, and carrying out thermal treatment at the temperature ranging from 150 DEG C to 350 DEG C; finally, forming a compact phosphate coating on the surface of the anodic oxide films after the steps are repeated for 2-8 times. Corrosion resistance and abrasion resistance of the anodic oxide films subjected to integrated hole sealing are much higher than those of anodic oxide films subjected to single hole sealing, and effects of integrated ...
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