一、The reason why the wind turbine to be rusty
1.The coating was out of life-span, the coating shedding, blistering and loose.
2.The original proper transaction: the painting was done without thorough or no cleaning. The coatings which were shedding, blistering and loosing penetrated into the other materials.
3.The thickness was not controlled properly, the thickness was not uniform.
4.The thickness was not controlled properly, the thickness was not uniform.
5.Caused by natural disasters.
6.No proper protection during transportation and hoisting process.
二、Construction conditions and precautions
1.The environmental temperature is preferably between 12-30 degrees, it is not suitable to do the construction if the humidity is over 85%, or rain, fog, windy weather.
2.When using paint, brushing should side with stirring, if skinning or other debris must be removed before use.
3.Each coat should not be more than 24 hours’ interval, the second painting should ve done under the condition of the first paint is completely dry.
4.Local anti-corrosion treatment, using manual roll way for construction. A large area of anti-corrosion treatment using spraying for construction
三、Specific construction steps
The surface treatment for Corroded parts →primer painting → Intermediate layer painting→surface painting
四、The role of supporting the paint
1.primer painting: Epoxy zinc-rich primer or epoxy paint with low surface treatment: epoxy zinc-rich whole for large area coating used in construction, it has a good effect to provide cathodic corrosion protection, low surface-treated epoxy paint for local repair has excellent properties, also can be used in large-scale construction, its low substrate surface treatment are quite tolerant and also have superior shielding effect, it can play a good protection for steel
2.Intermediate layer painting：Intermediate paint commonly used component epoxy micaceous iron oxide coating Mastic, its main function is to play a shielding effect, effectively primed closed to protect the paint from outside attack
3.surface painting：the 1st role is to make beautiful, good quality exterior paint color can make the tower a long beautiful shiny; the 2nd role is blocking.