很多人认为不锈钢卷帘门不会出现生锈的现象，实际上这是对不锈钢缺乏了解的一种片面的错误看法。不锈钢卷帘门在一定的条件下也会生锈的。济南卷帘门厂小编来为您讲解下吧。

Many people think that stainless steel roller shutter doors will not rust. In fact, this is a one-sided wrong view of the lack of understanding of stainless steel. Stainless steel roller shutter doors will rust under certain conditions. Let me explain it to you.

不锈钢卷帘门具有抵抗大气氧化的能力---即不锈性，同时也具有在含酸、碱、盐的介质中乃腐蚀的能力---即耐蚀性。但其抗腐蚀能力的大小是随其钢质本身化学组成、加互状态、使用条件及环境介质类型而改变的。

The stainless steel rolling shutter door has the ability to resist atmospheric oxidation, that is, rust resistance, and the ability to be corroded in the medium containing acid, alkali and salt, that is, corrosion resistance. However, the corrosion resistance of the steel varies with the chemical composition of the steel itself, the interaction state, the service conditions and the type of environmental media.

如304钢管，在干燥清洁的大气中，有优良的抗锈蚀能力，但将它移到海滨地区，在含有大量盐份的海雾中，很快就会生锈了；而316钢管则表现良好。因此，不是任何一种不锈钢，在任何环境下都能耐腐蚀,不生锈的。

For example, 304 steel pipe has excellent corrosion resistance in a dry and clean atmosphere, but if it is moved to the coastal area, it will soon rust in the sea fog containing a lot of salt; And 316 steel pipe performs well. Therefore, not any kind of stainless steel can resist corrosion and rust in any environment.

不锈钢卷帘门是靠其表面形成的一层薄而坚固细密的稳定的富铬氧化膜（防护膜），防止氧原子的继续渗入、继续氧化，而获得抗锈蚀的能力。一旦有某种原因，这种薄膜遭到了不断地破坏，空气或液体中氧原子就会不断渗入或金属中铁原子不断地析离出来，形成疏松的氧化铁，金属表面也就受到不断地锈蚀。

The stainless steel roller shutter door is a thin, solid, fine and stable chromium rich oxide film (protective film) formed on its surface to prevent the continuous penetration and oxidation of oxygen atoms and obtain the anti-corrosion ability. Once for some reason, this kind of film is continuously damaged, oxygen atoms in air or liquid will continuously penetrate or iron atoms in metal will continuously separate out, forming loose iron oxide, and the metal surface will be constantly rusted.

这种表面膜受到破坏的形式很多，日常生活中多见的有如下几种：

There are many forms of damage to this surface facial mask, and the following are common in daily life:

1.不锈钢卷帘门表面存积着含有其他金属元素的粉尘或异类金属颗粒的附着物，在潮湿的空气中，附着物与不锈钢间的冷凝水，将二者连成一个微电池，引发了电化学反应，保护膜受到破坏，称之谓电化学腐蚀。

1. There are dust containing other metal elements or adherents of different metal particles on the surface of the stainless steel roller shutter door. In the humid air, the condensate between the adherents and stainless steel will connect them into a micro cell, triggering an electrochemical reaction and damaging the protective film, which is called electrochemical corrosion.

2.不锈钢卷帘门表面粘附有机物汁液（如瓜菜、面汤、痰等），在有水氧情况下，构成有机酸，长时间则有机酸对金属表面的腐蚀。

2. Organic juices (such as melons and vegetables, noodle soup, sputum, etc.) adhere to the surface of the stainless steel roller shutter door, which constitute organic acids in the presence of water and oxygen, and will corrode the metal surface for a long time.

3.不锈钢表面粘附含有酸、碱、盐类物质（如装修墙壁的碱水、石灰水喷溅），引起局部腐蚀。

3. The stainless steel surface adheres to substances containing acid, alkali and salt (such as alkali water and lime water splashing on the decoration wall), causing local corrosion.

4.在有污染的空气中（如含有大量硫化物、氧化碳、氧化氮的大气），遇冷凝水，形成硫酸、硝酸、醋酸液点，引起化学腐蚀。

4. In polluted air (such as the atmosphere containing a large amount of sulfide, carbon oxide and nitrogen oxide), when encountering condensed water, sulfuric acid, nitric acid and acetic acid liquid points will be formed, causing chemical corrosion.

以上情况均可造成不锈钢表面防护膜的破坏引发锈蚀。面对问题，我们建议须经常对装饰不锈钢表面进行清洁擦洗，去除附着物，引发修饰的外界因素，需要用户认真选择有信誉厂家的产品。更多相关内容就来我们网站http://www.jnhsjlm.com咨询吧！

The above conditions can cause the damage of the protective film on the surface of stainless steel and lead to corrosion. In the face of problems, we suggest that the decorative stainless steel surface should be cleaned and scrubbed frequently to remove attachments and external factors that cause decoration. Users should carefully choose products from reputable manufacturers. For more information, please visit our website http://www.jnhsjlm.com Consult!