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Under what conditions are copper nuts prone to rust in proce

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Under what conditions are copper nuts prone to rust in proce

Release date:2019-09-21 15:28 source:Original click:


 In the copper parts processing industry, the demand for copper nuts is very large, so the processing of copper nuts is the most well-known car parts. I believe that many people hear that copper nuts will rust the first reaction is: "copper is not rusty, rust is not copper, may be copper problems". In fact, this is the lack of a certain understanding of copper, copper under certain conditions will rust, as follows:
 1. In polluted air (such as atmosphere containing large amounts of sulphide, carbon dioxide and nitrogen oxide), when encountering condensate water, it will form liquid points of sulphuric acid, nitric acid and acetic acid, which will cause chemical corrosion.

  2. Organic juice (such as melon, vegetable, noodle soup, phlegm, etc.) adheres to the surface of the vehicle, which forms organic acid in the presence of water and oxygen, and corrodes the metal surface for a long time.

  3. Copper nut surface adhesion contains acid, alkali, salt substances (such as alkali water, lime water splashing decoration wall), causing local corrosion. Czech solution

  4. Copper nuts are deposited with dust containing other metal elements or adhesives of different metal particles. In humid air, the adhesives and the condensate water between the adhesives and copper connect the two into a micro-battery, which leads to electrochemical reaction, and the protective film is destroyed. It is called electrochemical corrosion.

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