不銹鋼加工廠帶大家了解為什么不銹鋼也生銹

      不銹鋼具有抵抗大氣氧化的能力---即不銹性，同時也具有在含酸、堿、鹽的介質中乃腐蝕的能力---即耐蝕性。但其抗腐蝕能力的大小是 隨其鋼質本身化學組成、加互狀態、使用條件及環境介質類型而改變的。當不銹鋼管表面出現褐色銹斑(點)的時候，人們大感驚奇：認為 “不銹鋼是不生銹的，生銹就不是不銹鋼了，可能是鋼質出現了問題”。 其實，這是對不銹鋼缺乏了解的一種片面的錯誤看法。不銹鋼在一定的 條件下也會生銹的。
       Stainless steel has the ability to resist oxidation of the atmosphere -- not rust, but also has the acid, alkali, salt corrosion of the medium is the ability, corrosion resistance. But its corrosion resistance is the size of steel with its own chemical composition, increase mutual status, conditions of use and environmental changes in the type of media. When the stainless steel tube surface appear brown rust (point) when, people are surprised: "the stainless steel does not rust, rust is stainless steel, steel may be a problem". In fact, this is a one-sided view of the error and lack of understanding of stainless steel. Stainless steel rusts in certain conditions.
     不銹鋼是靠其表面形成的一層極薄而堅固細密的穩定的富鉻氧化膜(防護膜)，防止氧原子的繼續滲入、繼續氧化，而獲得抗銹蝕的能力。一旦有某種原因，這種薄膜遭到了不斷地破壞，空氣或液體中氧原 子就會不斷滲入或金屬中鐵原子不斷地析離出來，形成疏松的氧化鐵，金 屬表面也就受到不斷地銹蝕。這種表面膜受到破壞的形式很多，日常生 活中多見的有如下幾種：
Stainless steel is a very thin layer formed on the surface and the stability of the fine solid chromium oxide film (protective film), to prevent the infiltration of oxygen atoms, to oxidation, and the ability to obtain anti-corrosion. Once there are some reasons, this film was constantly undermined, air or liquid oxygen atoms will continue to infiltrate or metal atoms of iron to keep out from them, the formation of porous iron oxide, metal surface will continue to rust. Many of these surface damage form, in their daily lives. There are several:
1.在有污染的空氣中(如含有大量硫化物、氧化碳、氧化氮的大氣 )，遇冷凝水，形成硫酸、硝酸、醋酸液點，引起化學腐蝕。(北京不銹鋼加工)
1 in air pollution (such as containing a large amount of sulfide, carbon dioxide, nitrogen oxides, atmospheric) case of condensation water to form sulfuric acid, nitric acid, acetic acid, liquid, caused by chemical corrosion.
2.不銹鋼表面存積著含有其他金屬元素的粉塵或異類金屬顆粒的附著物，在潮濕的空氣中，附著物與不銹鋼間的冷凝水，將二者連成一個微電池，引發了電化學反應，保護膜受到破壞，稱之謂電化學腐蝕
2 stainless steel surface deposit or dust particles heterogeneous metal containing other metal elements of attachment, in the moist air, fixtures and stainless steel between the condensate, and the two together into a micro battery, causing the electrochemical reaction, the protective film is damaged, called the electro chemical corrosion
3.不銹鋼表面粘附有機物汁液(如瓜菜、面湯、痰等)，在有水氧 情況下，構成有機酸，長時間則有機酸對金屬表面的腐蝕。
3 stainless steel surface adhesion of organic juice (such as vegetables, soup, sputum), in the case of water oxygen, organic acid, long time organic acid on the surface of metal corrosion.
4.不銹鋼表面粘附含有酸、堿、鹽類物質(如裝修墻壁的堿水、石 灰水噴濺)，引起局部腐蝕。
4 stainless steel surface adhesion containing acid, alkali, salt material (such as wall decoration of alkaline water, lime water splash), caused by the localized corrosion.
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