In daily life, stainless steel screws are common fasteners. In the process of using stainless steel screws, rust is a common phenomenon, and it is also something that annoys us. This will not only affect the aesthetics, but also affect the quality of stainless steel screws. Use performance. So in the process of using, be sure to pay attention to the following points:
1. Organic juices (such as vegetables, noodle soup, sputum, etc.) adhere to the surface of stainless steel screws. In the presence of water and oxygen, organic acids are formed, and organic acids will corrode the metal surface for a long time.
2. The attachment of dust or heterogeneous metal particles, in the humid air, the attachment and the condensed water of the stainless steel screw connect the two into a micro-battery, which triggers an electrochemical reaction and damages the protective film, which is called electricity. chemical corrosion.
3. In the polluted air (such as the atmosphere containing a large amount of sulfide, carbon oxide, nitrogen oxide), in the presence of condensed water, the formation of sulfuric acid, acetic acid liquid point, causing chemical corrosion.
4. The surface of stainless steel adheres to substances containing acids, alkalis and salts (such as alkali water and lime water splashing from the decoration walls), causing local corrosion.