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Why does 2507 stainless steel sheets and plate rust?

Add Time:2021-06-01 Hits:39

2507 stainless steel sheets and plate is a very thin and stable chromium rich oxide film (protective film) formed by its outer surface, which can prevent the continuous entry and oxidation of oxygen atoms and obtain the ability of anti-corrosion. Once there is some reason, the film is constantly damaged, oxygen atoms in air or liquid will continue to enter or iron atoms in metal will continue to separate out, forming loose iron oxide, and the metal surface will be constantly corroded. There are many ways to damage this kind of outer membrane, which are common in daily life as follows:

1. 2507 stainless steel sheets and plate

The surface of metal exposed in corrosive environment has electrochemical reaction or chemical reaction, and is corroded evenly. Therefore, it is necessary to regularly clean and maintain the surface of 2507 stainless steel sheets and plate to maintain its rich appearance and extend its service life. When cleaning the surface of 2507 stainless steel sheets and plate, it is necessary to pay attention not to scratch the surface. It is necessary to prevent the use of bleaching ingredients and abrasive detergent, steel ball, grinding things, etc. in order to remove the detergent, wash the surface with clean water after washing.

2. There are chloride ions in the operating environment

Chloride ions exist widely, such as salt / sweat / seawater / sea breeze / soil, etc. Therefore, in coastal areas and areas with high soil salinity, it is often necessary to scrub and remove dust, and it is boring to insist on cleaning. In particular, sweat is also rich in salt, so the appearance of 2507 stainless steel sheets and plate should be dried in time!

3. Dust

There are a lot of dust in the air, which constantly fall on the surface of 2507 stainless steel sheets and plate. They can be removed with water or alkaline solution. However, adhesive dirt needs high pressure water or steam for finishing. This situation is often encountered in the decoration process, so pay attention to the appearance of 2507 stainless steel sheets and plate sink, range hood, gas stove, etc.

4. Floating iron powder or embedded iron

On any surface, free iron will rust and corrode 2507 stainless steel sheets and plate, commonly known as floating rust. It is necessary to remove the rust immediately. As time goes on, it will corrode until the perforation stops.


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