How to deal with oxidation stains on aluminium alloys

Today, we need to talk about the topic on how to deal with oxidation stains on aluminium alloys, since this is generally asked by our customers. A certain degree of oxidation of aluminium alloys will produce oxidation stains. These spots can affect the appearance of the aluminium alloy and make it less aesthetically pleasing. So, how should the oxidation spots of aluminium alloy be treated? Today Haomei Aluminium will explain it to you. First of all, there are a total of three ways to deal with oxidation spots on aluminium alloys. Let's take a look next!

Aluminum alloy oxidation spot treatment method one: when the aluminum alloy surface oxidation dirty, we can use alkali solution cleaning, will adsorb the dirty oxide film removed. After removing the oxide film, we then put the aluminium alloy in distilled water to clean it for many times. Then the aluminium alloy is boiled in distilled water to close the holes in the oxide film. This way the cleaned aluminium alloy surface will not attract dirt.

Aluminum alloy oxidation spot treatment method 2: The aluminum oxide generated on the surface of aluminum alloy is a dense protective film, which reacts with both acid and alkali. However, aluminium reacts with acid and alkali too. Soak in dilute acid or alkali and when there is gas, remove immediately and wash with water. It can also be polished with sandpaper.

Aluminum alloy oxidation spot treatment method three: aluminum alloy products in the oxidation treatment before, with chemical and physical methods to the surface of the product necessary cleaning, so that the bare pure metal matrix, to facilitate the smooth progress of oxidation coloring, so as to obtain and the substrate combined firmly, colour and thickness are to meet the requirements and has a good corrosion resistance, wear resistance of artificial film.