What causes rusting stainless steel retractable door? Nanjing Weifeng electromechanical equipment technician explained: Stainless steel door is fine by a very thin and sturdy, stable chromium-rich oxide film formed on the surface, to prevent the continued infiltration of oxygen atoms to oxidation, and access to anti-corrosion capacity. Once there is some reason, this film was constantly destroyed, air or liquid oxygen atom will continue to infiltrate or metal from iron atoms continuously analyze, forming loose iron oxide, metal surface rust will continue to suffer. This form of surface film damaged much more common in everyday life are the following: stainless steel retractable door in air pollution, the case of condensate Suqian electric retractable doors offer, to form sulfuric acid, nitric acid, acetic acid solution point Suqian electric retractable door, causing chemical corrosion. Stainless steel retractable door surface adhesion containing acids, bases, salts, causing localized corrosion. Stainless steel retractable door surface adhesion of organic juice, in the case of water oxygen to form organic acids, organic acids for a long time the corrosion of metal surfaces. The surface of stainless steel retractable door accumulating the attachments contain other metal elements or heterogeneous metal dust particles, in the humid air condensed water Suqian electric retractable door price, and stainless steel fixtures between the two together into a micro-battery , causing the electrochemical reaction, the protective film is damaged, call it that electrochemical corrosion. So stainless steel retractable doors need your careful maintenance, it can be a longer life, higher price! Nanjing Weifeng mechanical and electrical equipment is to operate a security trade based production company is located in Nanjing, Jiangsu Province, the registered capital of 500,000 yuan, mainly engaged in Nanjing electronic fence, parking access control system, stainless steel booth, and other products. In the store, we often see such a situation Suqian custom electric retractable door, obviously the same shape of two retractable doors, double the big price difference. Why is there such a situation? According to sales personnel, a shape identical electric retractable door Foshan addition to differences in the internal structure of the door core, in the production process technology program is also a great difference. Aluminum retractable door is a common profile of our electric door, this door is made of aluminum as raw materials, the impact of the different materials and different aspects of the production process retractable door prices. Suqian supply electric retractable door electric retractable door _ _ Suqian Weifeng electromechanical provided by Qixia District Weifeng electromechanical equipment operators. Qixia District Weifeng Electrical and operating equipment (www.njweifeng.com) strong, credible, Nanjing, Jiangsu Province in other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Weifeng electromechanical and you hand into the brilliant, for a better future!