Points to note when using stainless steel screws

Stainless steel screw refers to the shape of a screw 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 it is also an annoying thing for us. This will not only affect the aesthetics, but also affect the stainless steel screws. Performance. (Guide: Analysis of Machine Tool Casting Repair)

　　 Therefore, we must pay attention to the key points in the use of stainless steel screws: 1. The surface of the stainless steel screws adheres to the organic juice (such as melon, vegetable, noodle soup, sputum, etc.), which constitutes organic Acid, organic acid 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 to form a micro battery, triggering an electrochemical reaction, and the protective film is It is called electrochemical corrosion.

　　3. In polluted air (such as the atmosphere containing a large amount of sulfide, carbon oxide, and nitrogen oxide), contact with condensed water will form sulfuric acid, acetic acid liquid spots, and cause chemical corrosion.

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

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