Knowledge

When we buy aluminum sheet plates, we often find that there is a thin blue film attached to the surface of the aluminum sheet, some are delicate, some are rough, and the film is also single-sided and double-sided. But why do we want to be on the surface of the aluminum sheet? What about film?

There is actually a reason for the aluminum sheet coating. We know that aluminum is a relatively delicate metal. It is easy to oxidize when it is wet, and it is easy to be corroded when it encounters chemicals. Industrial pure aluminum is easy to be scratched because of its soft material Many of the above problems can actually be reduced by coating.

The freshly produced aluminum sheet plates has a bright color and a smooth surface, just like our mobile phone screen. If you want to maintain this beautiful state, it is a good way to cover the aluminum sheet surface with the same reason as our mobile phone. For mobile phones, in order to protect the screen of the mobile phone, everyone will paste the surface. The aluminum sheet coating is the same as this principle.

For some manufacturers, because of the strict requirements on the surface quality of aluminum sheet plates, and aluminum plates during transportation, problems will inevitably occur. This method of aluminum plate coating can effectively reduce the surface damage of aluminum plates. Although aluminum plate coating will increase the cost, it is still It is very necessary, of course, for those companies that do not have high requirements for the surface of aluminum sheet plates, there is no need to make a lot of trouble. As for whether aluminum sheet need to be covered, we still have to choose according to our actual needs.