What causes cold storage board rust? Cold storage board manufacturers to talk to you
Release time:
2021-12-01
For the needs of life, the cold storage board gradually About Us life. Its function is to maintain the change of the internal structure of the cold storage, and its heat insulation is also better. So what causes the cold storage board rust? Cold storage board manufacturers to talk to you.
For the needs of life, the cold storage board gradually About Us life. Its function is to maintain the change of the internal structure of the cold storage, and its heat insulation is also better. So what causes the cold storage board rust? Cold storage board manufacturers to talk to you.
For cold storage board manufacturers, cold storage board is not easy to rust, which is closely related to the composition of stainless steel. In addition to iron, stainless steel also contains chromium, nickel, aluminum, silicon, etc. Generally, the chromium content of stainless steel is generally not less than 12%, even as high as 18%. After adding chromium and other elements to the steel, the performance of the steel can be changed. For example, the molecular structure of the steel is more uniform, and it is easier to form a dense oxide protective film on the surface of the steel, thereby greatly improving the corrosion resistance of the stainless steel.
Therefore, the stainless steel cold storage plate can resist the corrosion of fire, water, acid, alkali and various solutions without rust. Experts found that the more uniform the internal structure of the steel, the more closely the various components are connected, and the more difficult it is for corrosion to invade. In addition, a layer of oxide protective film is attached to the surface, just like putting armor on steel, which is naturally not easy to rust.
Cold plate manufacturers said that when the stainless steel cold plate surface brown rust (spots), people were surprised: they think that "stainless steel does not rust, rust is not stainless steel, may be the steel out of the question". In fact, this is a one-sided misunderstanding of the lack of understanding of stainless steel cold plate. Stainless steel cold plate will rust under certain conditions.
Stainless steel cold storage plate has the ability to resist atmospheric oxidation-that is, stainless steel, but also has the ability to corrode in the medium containing acid, alkali and salt-that is, corrosion resistance. However, its corrosion resistance varies depending on the chemical composition of the steel itself, the state of addition, the conditions of use and the type of environmental medium. For example, 304 steel pipes have excellent corrosion resistance in a dry and clean atmosphere.
But if you move to the seaside area, you will soon rust in the sea fog, which contains a lot of salt. And 304# stainless steel cold plate performance is good. Therefore, not any kind of stainless steel can resist corrosion and rust in any environment.
Cold plate manufacturers say, stainless steel cold plate is formed on the surface of a layer of very thin, strong, small, stable chromium-rich oxide film (protective film), it can prevent oxygen atoms continue to soak and continue to oxidize, so as to obtain the ability to resist corrosion. Once for some reason, this film is constantly destroyed, oxygen atoms in the air or liquid will continue to penetrate or iron atoms in the metal will continue to precipitate, the formation of loose iron oxide, and the metal surface will continue to rust.
So the cold storage board rust is a certain reason. If you want to know more about the cold storage board, you can contact us. We are cold storage board manufacturers, in this area has many years of production experience.
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