日韩毛片在线视频-日韩毛片在线影视-日韩美aaa特级毛片-日韩美a一级毛片-久久夜夜操妹子-久久夜夜肉肉热热日日

Salt is the world's one of the most common compounds. In the oceans, atmosphere, land surface, as well as lakes and rivers are found in salt. Therefore, to avoid exposure to salt spray is possible. Typically, the most severe impact in the coastal areas. Equipment exposed to corrosive effects of the atmospheric environment can be divided into three categories: corrosion effects, electrical effects and physical effects. Consider the following typical questions help determine whether this method is applicable to subjects and equipment. The following issues do not include the full impact.
1. Corrosion
a, electrochemical reaction caused by corrosion.
b, accelerated stress corrosion.
c, salt ionization in water formed after the acid / alkaline solution.
2. Electric effect
a, because of salt deposition caused by damage to electronic equipment.
b, conductive layer generation.
c, insulating materials and metal corrosion.
3. Physical effects
a, mechanical parts and components activities, part of the obstruction or adhesion.
b, lead paint blistering from the electrolysis.