Stainless steel screws pay attention to 4 points to prevent rust

Stainless steel screws are common fasteners in daily life. In the process of 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 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, triggering an electrochemical reaction, and the protective film is damaged. It is called electrochemical corrosion. (Guide: Material Selection and Processing Technology of Flat Washers)

2. 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.

3. The surface of stainless steel adheres to containing acid, alkali, and salt substances (such as alkaline water and lime water splashing on the decoration wall), causing local corrosion.

4. In polluted air (such as the atmosphere containing a large amount of sulfide, carbon oxide, and nitrogen oxide), it will form sulfuric acid, nitric acid, and acetic acid liquid spots when encountering condensed water, causing chemical corrosion.

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