Stainless steel screw refers to a screw shape that is punched with stainless steel screw wire, and then the thread is screwed. The material is stainless steel. Stainless steel screws are classified into stainless steel SUS201 screws, stainless steel SUS304 screws, and stainless steel SUS316 screws according to their materials .
In daily life, stainless steel screws are common fasteners. During use, rust is a common phenomenon and an annoying thing for us. This will not only affect the aesthetics, but also affect the performance of stainless steel screws. .
Therefore, we must pay attention to the key points in the use of stainless steel screws:
1. The surface of the stainless steel screw adheres to the organic juice ( such as melon, vegetable, noodle soup, sputum, etc. ) , which forms organic acid in the presence of water and oxygen, and the organic acid will corrode the metal surface for a long time.
2. The attachment of dust or foreign metal particles. In the humid air, the attachment and the condensed water of the stainless steel screw connect the two to form a micro battery, which triggers an electrochemical reaction and damages the protective film, which is called electricity. Chemical corrosion.
3. In polluted air ( such as the atmosphere containing a large amount of sulfide, carbon oxide, and nitrogen oxide ) , it will form sulfuric acid and acetic acid liquid spots in contact with condensed water, causing chemical corrosion.
4. The surface of stainless steel adheres to containing acids, alkalis, and salt substances ( such as alkaline water and lime water splashing on the decoration walls ) , causing local corrosion.
