When there are brown rust spots and rust spots on the surface of the stainless steel protective box, we will agree that the steel we buy is fake. Stainless steel corrodes under certain conditions. Because people's imperfect knowledge leads to one-sided wrong views on stainless steel.

Under what circumstances will stainless steel rust? How to maintain our stainless steel protective box can effectively prevent the stainless steel protective box from rusting. Guangdong protective box manufacturer introduced the maintenance of stainless steel protective box in detail.

In fact, the stainless steel on the surface of our stainless steel protective box depends on the thin, solid and fine stable chromium rich oxide layer (protective film) formed on its surface to prevent the continuous penetration and oxidation of oxygen atoms and obtain corrosion resistance. However, if the protective film of the surface layer is damaged, the stainless steel will rust. When there is a reason, the film will continue to be damaged, the oxygen atoms in the air or liquid will continue to penetrate, or the iron atoms in the metal will continue to separate, forming loose iron oxide, and the metal surface will continue to corrode.