Reasons for corrosion resistance of aluminum products
Release time:
Aug 13,2018
Both pure aluminum and aluminum profile products have one feature, which is corrosion resistance.Due to this great advantage, it is widely used in many fields.Today we will discuss the reasons for the corrosion resistance of aluminum products.
The chemical symbol of aluminum is AL, which is a very active metal and ranks third in the periodic table of metal elements.It can react chemically with oxygen in the air very easily to generate AL2O3 alumina.Alumina does not have the same obvious color as other metal oxides, it is colorless and transparent, and has no effect on the color of aluminum itself.More importantly, it can wrap the entire aluminum product matrix and prevent the matrix from touching the air again, so that the matrix will not continue to oxidize.If the surface of the aluminum profile product is accidentally scratched, an alumina film will quickly form at the wound, so that the substrate will no longer be deeply corroded.