Can aluminum plate resist acid and alkali?
Acid base corrosion aluminum alloy, corrosion resistance, but nothing is absolute, even if the steel plate in the long-term corrosion of acid and alkali will also have problems
The metal oxide film changes the surface state and properties, such as surface coloring, corrosion resistance, abrasion resistance and hardness, and metal surface protection. For example, aluminum anodizing, the aluminum alloy placed in the corresponding electrolyte (such as sulfuric acid, chromic acid, oxalic acid, etc.) as an anode, under certain conditions and applied electricity under the electrolysis. Anodized aluminum or its alloy, formed on the surface of alumina thin layer, its thickness is 5~20 microns, anodized aluminum or its alloy. Therefore, the surface hardness and wear resistance of the aluminum alloy were greatly improved by the treatment process.Shanghai Ai Li AI metal materials, dedicated to serve you.
Aluminum is a more active metal, easy to react with the acid and alkali of the outside world. If it is in water for a long time, aluminum will react with acid and alkali substances in water. How to improve the acid and alkali resistance of aluminum alloy?Mainly through the oxidation of aluminum alloy, so that its surface with a layer of oxide film, to prevent the external acid-base substances on aluminum alloy corrosion.In order to reduce the surface hardness and wear resistance of aluminum alloy and prolong its service life, the surface oxidation surface treatment technology has become an indispensable part of the use of aluminum alloy.