Wind power is currently the most valuable renewable energy for development and promotion, and it has developed rapidly worldwide in recent years. As the core component for capturing wind energy, wind turbine blades largely determine the power generation efficiency, cost and service life of wind turbines, so its material selection, design and manufacturing are critical. Because fiber-reinforced resin-based composite materials have excellent fatigue resistance and designability, large wind turbine blades are basically made of such materials and are manufactured by vacuum introduction technology. The vacuum introduction process is an advanced low-cost molding technology suitable for the manufacture of large structural parts. The core of the process is to use a diversion medium to quickly disperse the resin on the surface of a thick part, soak vertically, and solidify the molding, usually using a single side The mold single-sided vacuum bag has the advantages of high molding efficiency, low pollution and stable quality.
1. Primer: epoxy zinc-rich primer or low surface treatment epoxy resin paint: epoxy zinc-rich is suitable for large-area overall coating construction. It has a good anti-corrosion effect and can provide cathodic protection. Treated epoxy resin paint has excellent characteristics for partial repair, and can also be used in large-area construction. It has considerable tolerance to low substrate surface treatment and also has excellent shielding effect, which can play a good protection for steel plates. .
2. Intermediate paint: The intermediate paint generally adopts epoxy thick-build paint containing mica iron oxide. Its function is mainly to play a shielding role, effectively seal the primer, and protect the primer from external erosion.
3. Finish: First, it plays a beautiful role. A high-quality finish can make the appearance of the tower beautiful and shiny for a long time; second, it can also play a certain sealing effect.
Post time: Nov-11-2021
