Technology of anti-corrosion spraying on surface of tower cylinder

Abstract

The invention discloses a technology of anti-corrosion spraying on the surface of a tower cylinder. The technology of the anti-corrosion spraying on the surface of the tower cylinder comprises the following steps that 1, tower cylinder spraying pretreatment is carried out, specifically, S1, partial anti-corrosion finishing is carried out, S2, dry sandblasting for rust removal is carried out, and S3, parkerizing is carried out; 2, spraying treatment is carried out, specifically, under certain conditions, priming paint spraying, intermediate paint spraying and finishing paint spraying are carried out in sequence; and 3, air drying, film measuring and sanding treatment are carried out, specifically, after spray painting on the surface of a workpiece is subjected to air drying and is judged tobe qualified after being subjected to the film measuring, and the sanding treatment is carried out on the surface of a paint film to remove paint film particles and pollutants. According to the technology of the anti-corrosion spraying on the surface of the tower cylinder, through the three-step systematic spraying pretreatment steps including the partial anti-corrosion finishing, the dry sandblasting for rust removal and the parkerizing for the tower cylinder, the tower cylinder is effectively prevented from being partly corroded, meanwhile, the adhesive force between the priming paint and the surface of the tower cylinder can be enhanced, then through spraying three layers of interactive paint layers including priming paint, intermediate paint and finishing paint, the three-layer anticorrosion protection to the tower cylinder is formed , the spraying quality is high, the paint layers are not prone to falling off after being sprayed, the tower cylinder corrosion can be effectively prevented, and the anticorrosion time is long.

Description

technical field [0001] The invention relates to the technical field of tower barrel spraying, in particular to a tower barrel surface anti-corrosion spraying process. Background technique [0002] The wind power tower is a tower pole that uses wind power to generate electricity. It mainly plays a supporting role in the wind power generation unit and absorbs the vibration of the unit at the same time. The production process of wind power towers generally includes CNC cutting machine blanking, thick plates need to be beveled, spot welding, positioning, and confirmation of internal and external longitudinal seams after plate rolling by plate rolling machines, and roundness inspection. The roundness problem can be rounded twice. After the welding of the single-section cylinder is completed, the hydraulic group is used to carry out spot welding on the roller frame, and after the tolerance inspection of the inner and outer ring seams and straightness of the welding, the flange is ...

AI Technical Summary

Problems solved by technology

However, after the existing tower is painted, the coating is prone to powdering, falling off, loosening, etc. The main reasons are as follows: First, the surface of the wind power tower needs to be treated before sandblasting and painting The construction of the paint under the condition of incomplete treatment or no surface treatment will cause the paint coating to fall off, loosen, and the dirt and moist air will penetrate into the substrate; second, the construction process of the coating is not well controlled. The uneven thickness of the paint film leads to a large area of ​​primer film that does not have a good anti-corrosion effect. Third, the failure of the design of the anti-corrosion supporting system leads to the failure of the coating, and the quality of spraying cannot be guaranteed. After spraying, the wind power tower tube has experienced wind, frost, rain and snow. It is easy to fall off after corrosion, and the anticorrosion time is short

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