1. In the gas polluted by the environment (such as air containing a large amount of sulfate, carbon oxide and nitrogen oxide), when it encounters condensed water, liquid points of hydrochloric acid, sodium cyanide and glacial acetic acid will be generated, resulting in organic chemical corrosion.
2. Organic compound juice (such as vegetables, soup noodles, phlegm, etc.) adheres to the surface of stainless steel bolts. ), form citric acid under the condition of water and oxygen, and corrode the metal surface for a long time.
3. The accessories of soot or heterogeneous metal particles, in the wet and cold gas, the accessories are connected with the condensed water of stainless steel bolts to form a micro-rechargeable battery, which causes electrochemical corrosion and seriously damages the protective film, which is called the primary battery principle.
4. The surface of the stainless steel plate is attached with acid, alkali and salt chemical substances (such as edible alkali on the interior decoration wall, lime slurry splashing), causing partial corrosion.
5. A large amount of sulfide, carbon oxide, nitrogen oxide (atmosphere) will form sulfuric acid, nitric acid, and acetic acid liquid points when encountering condensed water, causing chemical corrosion.
6. In polluted air (such as the atmosphere containing a large amount of sulfide, carbon oxide, and nitrogen oxide), sulfuric acid, nitric acid, and acetic acid liquid points are formed when they encounter condensed water, causing chemical corrosion.
7. The attachment of dust or heterogeneous metal particles, in the humid air, the attachment and the condensed water of the stainless steel screw are connected to form a micro battery, causing an electrochemical reaction and damaging the protective film, which is called electrochemical corrosion.
8. The surface of stainless steel adheres to acid, alkali and salt substances (such as alkaline water and lime water splashed on the decorative wall), causing local corrosion.
9. Organic juice (such as vegetables, noodle soup, phlegm, etc.) adheres to the surface of stainless steel screws. ), forming organic acids in the presence of water and oxygen, corroding metal surfaces for a long time.
