Will The Aluminum Ingot Rust?
Keganhirl > 12-29-2021, 08:27 AM
Aluminum ingots are made of pure aluminum and recycled aluminum. Other elements such as silicon (Si), copper (Cu), magnesium (Mg) and iron (Fe) are added according to international standards or special requirements to improve the castability of pure aluminum. An alloy that is formulated with chemical and physical deficiencies.
Then, will the aluminum ingot rust? Many netizens have doubts. They have seen copper rust and have seen iron rust, but have never seen aluminum rust. Doesn't aluminum rust? In fact, aluminum powder, aluminum Aluminum products such as grains will of course rust, but aluminum rust does not rust like iron until it is rusted.
The metal is oxidized by oxygen in the air and is rusted. The aluminum ingot reacts with oxygen to form aluminum oxide, which is aluminum rust. Aluminium rust is very thin, its thickness is only one ten thousandth of a millimeter, but it is very hard and very wear-resistant. It is close to the surface of the aluminum, so that the aluminum inside is not exposed to the outside air, preventing the aluminum from continuing to rust.
Alumina films also have "busters": one is a base and the other is an acid. When the alumina meets them, a chemical reaction occurs to form a compound, which causes the aluminum oxide film on the surface of the aluminum ingot to easily fall off.
In daily life, the dishes often contain acid and alkali ingredients. Therefore, do not put the wine in the aluminum utensils, so as not to damage the aluminum pan. In addition, do not rub with sand because the surface of the aluminum pan is gray and embarrassing. Although the aluminum pan is brighter, the aluminum pan loses the protective film on the surface, and the aluminum pan continues to oxidize, affecting its service life.