304 stainless steel kitchen sink products rust how to clean
304 stainless steel kitchen sink products rely on the formation of an extremely thin, firm and fine stable chromium-rich oxide film (protective film) on its surface to prevent the continuous infiltration and oxidation of oxygen atoms and obtain the ability to resist corrosion. Once for some reason, the film is continuously damaged, the oxygen atoms in the air or liquid will continuously infiltrate or the iron atoms in the metal will continuously separate out to form loose iron oxide, and the metal surface will be continuously rusted. There are many forms of damage to this surface film, and the most common ones in daily life are as follows:
1. The surface of 304 stainless steel kitchen sink products has deposits of dust containing other metal elements or attachments of heterogeneous metal particles. In humid air, the condensed water between the attachments and 304 stainless steel kitchen sink products connects the two A micro-battery is formed, an electrochemical reaction is triggered, and the protective film is damaged, which is called electrochemical corrosion.
2. The surface of 304 stainless steel kitchen sink products adheres to organic juice (such as vegetables, noodle soup, sputum, etc.), and in the presence of water and oxygen, it will form organic acids, which will corrode the metal surface for a long time.
3. The surface of 304 stainless steel kitchen sink products adheres to acid, alkali and salt substances (such as alkaline water and lime water splashed on the wall for decoration), causing local corrosion.
4. When 304 stainless steel kitchen sink products are in polluted air (such as an atmosphere containing a large amount of sulfide, carbon oxide, and nitrogen oxide), when they encounter condensed water, they will form sulfuric acid, nitric acid, and acetic acid liquid points, causing chemical corrosion.
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