Pay attention to the suitability of choosing ppe

In daily life, stainless steel screws are common fasteners. In the course of use, rust is a common phenomenon and it is also an annoyance to us. This will not only affect the aesthetic level, but also affect the performance of stainless steel screws. .

Therefore, we must pay attention to the use points in the process of using stainless steel screws: 1, stainless steel screw surface adhesion organic juice (such as vegetables, noodles, soup, etc.), in the case of water oxygen, constitute organic acids, long At the time, organic acids corrode metal surfaces.

2. Attachment of dust or dissimilar metal particles, in the moist air, attachments and condensed water of stainless steel screws, connecting the two into a micro battery, which triggers an electrochemical reaction and the protective film is destroyed. Chemical corrosion.

3. In the contaminated air (such as the atmosphere containing a large number of * oxides, carbon oxides, and nitrogen oxides), in the event of condensation, **, **, acetic acid liquids are formed, causing chemical corrosion.

4. The surface of stainless steel adheres with acids, alkalis and salts (such as alkaline water on the wall of the decoration, lime water splashes), causing localized corrosion.