Daily use of rolling shutter door, sometimes because of some reasons appear corrosion phenomenon, so rolling shutter door corrosion reason is what? Now we and rolling door manufacturers together to understand what is behind the rolling door corrosion.

1、卷簾門在制作過程中難免會損傷到表面，或出現缺陷及其他對外表面有操作的物質。

1. Rolling shutter door in the production process will inevitably damage to the surface, or defects and other external surface operation of the material.
                            

2、腐蝕不會使大面積的表面受侵蝕， 而是在損傷處及其周圍的局部腐蝕，是以點蝕或縫隙腐蝕的形式，這種腐蝕會向深度和廣度發展。

2. Corrosion will not erode a large area of the surface, but local corrosion in and around the damage, in the form of pitting or crevice corrosion, which will develop to depth and breadth.

3、很多時候因為忽略了這些有害因素，不重視或做得不好。但是，這些物質的存在對氧化保護膜潛在的危害，保護膜一旦被損壞，被減薄或用其它方法使之改變，不銹鋼會受到腐蝕。

3. Most of the time because of ignoring these harmful factors, do not pay attention to or do not do well. However, the existence of these substances is potentially harmful to the oxidation protective film. Once the protective film is damaged, thinned or changed by other methods, the stainless steel will be corroded.