Protection method for removing corrosion on surface of aluminum alloy
A technology for aluminum alloy surface and corrosion protection, which is applied to the device for coating liquid on the surface, metal material coating process, coating and other directions, which can solve the problems of secondary corrosion, difficult to completely remove the rust layer, and high labor intensity. Effectively remove and eliminate adverse effects
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Embodiment 1
[0024] Provided is a method for corrosion protection on an aluminum alloy surface, comprising the following steps:
[0025] Step 1. Removal of floating rust on the corroded parts of the aluminum alloy surface
[0026] Mechanically polish the corroded parts of the aluminum alloy surface until the surface reveals a metallic luster, and use an organic solvent to clean the polished surface;
[0027] Step 2. Removal of deep corrosion products on the aluminum alloy surface
[0028] Apply aluminum alloy anti-corrosion product paste to the surface of aluminum alloy after mechanical polishing, and keep it for 0.5h~2h after application; when the anti-corrosion product paste is dry, clean the coated area to remove the attachment on the aluminum alloy surface;
[0029] Step 3, aluminum alloy surface oxidation
[0030] Apply an aluminum alloy surface oxide paste to the aluminum alloy surface coated with aluminum alloy corrosion product paste, and keep the oxide paste for 0.5h to 2h after...
Embodiment 2
[0037] Provided is a method for corrosion protection on an aluminum alloy surface, comprising the following steps:
[0038] Step 1. Removal of floating rust on the corroded parts of the aluminum alloy surface
[0039] Mechanically polish the corroded parts of the aluminum alloy surface until the surface reveals a metallic luster, and use an organic solvent to clean the polished surface;
[0040] Step 2. Removal of deep corrosion products on the aluminum alloy surface
[0041] Apply aluminum alloy anti-corrosion product paste to the surface of aluminum alloy after mechanical polishing, and keep it for 0.5h~2h after application; when the anti-corrosion product paste is dry, clean the coated area to remove the attachment on the aluminum alloy surface;
[0042] Step 3, aluminum alloy surface oxidation
[0043] Apply an aluminum alloy surface oxide paste to the aluminum alloy surface coated with aluminum alloy corrosion product paste, and keep the oxide paste for 0.5h to 2h after...
Embodiment 3
[0050] Including the following steps:
[0051] Step 1. Removal of floating rust on the corroded parts of the aluminum alloy surface
[0052] Use tools such as sandpaper, bristle brushes or grinding wheels to mechanically polish the corroded parts of the aluminum alloy surface until the surface reveals a metallic luster, and use cotton yarn or cotton cloth dipped in organic solvents such as gasoline, acetone or solvent-based cleaning agents to polish the polished surface After cleaning, dry the treated surface naturally in the air or dry it with clean compressed air;
[0053] Step 2. Removal of deep corrosion products on the aluminum alloy surface
[0054] Stir the aluminum alloy anti-corrosion product paste to a uniform paste, apply it to the mechanically polished aluminum alloy surface with a brush or scraper, and keep it for 0.5h~2h after coating; when the anti-corrosion product paste is dry, use a brush, cotton cloth or a scraper to remove the residual de-corrosion produc...
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