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Why stainless steel mesh wire will rust

Stainless steel wire mesh belt why rust and rust after rehabilitation treatment. From the perspective of the industry higher nickel and chromium content and corrosion of stainless steel harder. Rather than lower, in harsh environments, it may rust.

  : why do stainless steel rust? When the surface appears brown rust stainless steel tube (dot) when people are surprised: think "stainless steel does not rust, rust is not stainless steel, may be a problem for steel." In fact, this is a one-sided view of the lack of understanding of stainless steel. Under certain conditions, stainless steel will rust.

   now, as this chapter to find out why stainless steel will rust the decryption process. Stainless steel is in the air, water, steam and other weak corrosive media, of steel known as stainless steel does not rust. In added General carbon steel stainless steel is made of chromium smelting of certain content. Stainless steel does not rust, steel contains chromium this is the key element. Chromium in the presence of corrosive media, steel generated a solid compact layer of oxide film on the surface, called "film". This layer of metal and dielectric isolation of the outside world to prevent further corrosion of metals. And it also has the ability to repair itself, if, once destroyed, chromium in steel with oxygen media to rebuild film, continues to play a protective role.


   stainless steel with resistance to atmospheric oxidation--that is, no rust, as well as in the presence of acid, alkali, salt in the media--that is, resistance to corrosion and corrosion. Under normal circumstances, stainless steel will not rust, but if the improper use or maintenance, or a stainless steel environment too harsh, stainless steel, there may be rust. When we see the steel surface when there is a yellow or orange rust, they quickly confirmed that it is a sign of rust. Stainless steel corrosion resistance steel itself is the size of its chemical composition, and each state change, conditions of use and the type of environmental media.

   stainless steel depends on its surface to form a layer of extremely thin and firm chromium-rich oxide film (protective film), prevent oxygen atoms continue to infiltrate and oxidation, and ability to resist corrosion. If for some reason, this film has been the growing destruction of air or oxygen atoms in the liquid will become increasingly infiltrated or iron ions on the metal away, forming loose iron oxide corrosion of metal surfaces will be kept. Many forms of damage to the surface film, common in everyday life are the following:

    1 accumulation with other metals, stainless steel surface dust or alien metal fixtures, in moist air, fixtures and stainless steel condensate, connecting them into a micro-batteries, led to electrochemical reflect, had damage to the protective film, called electro-chemical corrosion.

    2, stainless steel surface attached material liquid (such as vegetables, noodle soup, phlegm, etc), in case water oxygen to form organic acids, causing organic acid corrosion on metallic surfaces for a long time.

    3, stainless steel adhesive containing acids, alkalis, salts (such as decorating the walls of the soda water and lime water splash) which can cause localized corrosion.

    4, in air pollution (which contain a lot of sulphides, carbon oxide, nitrogen oxides the atmosphere), condensate, forming sulfuric acid, nitric acid, acetic acid, causing corrosion.

    5, steel brush, wire brush and metal shards, friction surface of stainless steel, causing the surface wear.

    6, existed in water, food, salt, bleach, one of the worst came from household and industrial detergents, can also cause damage to the surface of the stainless steel.

     above can cause stainless steel to rust.

     to ensure that the permanent light on the metal surface, no corrosion, we recommend:

   1 scrub, stainless steel surface must always be clean, remove attachments, eliminating the external factors cause rust.

   2, when to clean your stainless steel, be careful and use no abrasive tools. Soft wipe cloth and plastic will not damage the stainless steel surface.

   3, stainless steel surface polishing lines or "grain". If grinding line, you must follow the direction of the Polish lines equal to wipe if the textures are not clear, then you have to be careful, wipe with a soft cloth or plastic pad.

   4, use alkaline, chloride-alkali or bleach-free detergent, clean the stainless steel surface, while   also want to avoid using detergents containing chloride, as this may cause a small pit or rust. If you use a detergent containing bleach, you must as soon as possible, wash, rinse, then wash and wipe clean immediately. Especially the suspended water containing detergent, dry faster, the better. After dry air-dry, because oxygen can protect the passive films of stainless steel.