There is a layer of oxide on the surface of aluminum workpiece, how can it be removed?
Jul 23, 2022
Surface oxides can be removed with dilute hydrochloric acid or sulfuric acid. Due to the strong gold property of aluminum, it is directly and quickly oxidized in the air, forming a dense oxide film on the surface, which can isolate the internal corrosion of oxygen. If the working environment is in the air, the way to prevent re-oxidation of aluminum parts is not to remove the oxide of the outer layer; If you're working in a lab, create an "ideal state".
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