Why Does The Stainless Steel Filter Also Rust?

 stainless steel wire mesh

Plain Weave Wire Mesh


Causes of rust

The anti-modification ability of stainless steel relies on a very thin, strong, dense, and stable chromium-rich oxide film (protective film) formed on its surface. It can effectively prevent the continuous penetration and oxidation of oxygen atoms.

However, once the film is continuously destroyed for some reason, the metal surface will be continuously rusted. The oxygen atoms in the air or liquid will continue to infiltrate or the iron atoms in the metal will continue to separate out, causing loose iron oxide to form on the surface of the metal.


Common types of rust in life

1. The surface of stainless steel filter mesh 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. 

2. 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. The above conditions can cause damage to the protective film on the surface of stainless steel and cause rust. 

3. The surface of stainless steel has accumulated dust containing other metal elements or attachments of foreign metal particles. In humid air, the condensation between the attachments and stainless steel connects the two into a micro battery, which initiates an electrochemical reaction. , The protective film is damaged, which is called electrochemical corrosion. 

4. 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. To

 

How can the stainless steel filter not rust?

1. The surface of decorative stainless steel must be cleaned and scrubbed frequently to remove attachments and eliminate external factors that cause modification. 

2. 316 stainless steel should be used in coastal areas, which can resist seawater corrosion. 

3. The chemical composition of some stainless steel pipes on the market cannot meet the corresponding national standards and cannot meet the material requirements of 304. Therefore, rust will also be caused, which requires users to carefully choose products from reputable manufacturers.

https://zerunmetal.medium.com/358-security-mesh-fence-46f3a152619a 

The use of stainless steel filter mesh

Mainly used to filter water, oil, dust, gas plastic particles manufacturing, chemical fiber manufacturing, petroleum, refining, chemical, light industry, medicine, metallurgy, machinery, shipbuilding, automobile, and tractor industries such as distillation, absorption, evaporation, filtration, and other processes The process eliminates the mist and liquid entrained in steam or gas and is used as an air filter on automobiles and tractors.

 

We are a stainless steel filter mesh supplier, please feel free to contact us if you need them.

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