The invention relates to an ash removing agent for
neutralization treatment of aluminum
alloy and a preparation method thereof. The ash removing agent is applied to the
neutralization treatment afterthe pretreatment of the aluminum
alloy and comprises the following components according to parts by weight: 50-200 parts of
sulfuric acid, 2-100 parts of hexavalent iron salt, 5-50 parts of
ferric iron salt, 10-50 parts of
hydrogen peroxide and 5-50 parts of
corrosion inhibitor. The ash removing agent for the
neutralization treatment of the aluminum
alloy is used for removing ash in the neutralization treatment process after the pretreatment of the aluminum alloy, has little
corrosion to the aluminum alloy, does not affect the glossiness of an aluminum
alloy substrate, has a good ash removal
treatment effect and fast ash removal speed, and is low in cost and environmentally-friendly without dead angles and residues; the ash removing agent does not generate toxic and harmful gases in the ash removal process, is environmentally-friendly, has no
threat to the health of operators, and solves the problems that as ash cannot be removed completely by a traditional process, the ash can only bewiped by a wet towel after the follow-up
anodic oxidation sealing and is difficult to completely wipe. The preparation technology of the ash removing agent is simple, high-efficiency, energy-saving and environmentally-friendly.