What materials are wind turbine blades made of?

What are the materials used to make wind turbine blades?

During the live broadcast, CCTV reporters introduced that the main material of wind turbine blades is glass fiber cloth.Its single filament is only one-tenth of a hair.This "cloth" is laid 70-80 layers.Then epoxy resin is poured in.It can generate fiberglass reinforced plastic that is stronger than steel plate.It forms the "skeleton" of the blade.

Through time-lapse photography, CCTV reporters recorded the entire process of wind turbine blade mold closing. The mechanical arm steadily lifted the two molds and slowly closed them. The two "big guys" were tightly fitted together without any difference. A 100-meter "wind turbine blade" was formed.

The blade being produced in the live broadcast is 113 meters long From raw materials to blades rolling off the production line It takes less than 48 hours The first blade of this type rolled off the production line on July 3 It is the longest onshore blade currently produced by CRRC Times New Materials

The production workshop where the reporter is located can accommodate 8 100-meter-class blade production lines at the same time. If you feel each production line with your feet, it will take about an hour.

Through AR technology, CCTV reporters intuitively demonstrated the structure of the blade. The main beam of the blade, the pultruded beam, runs through it. The pultruded beam is similar to the human spine. It is the key load-bearing part of the blade. Only by using lighter and stronger materials can it operate better in the wind farm.

CRRC Times New Materials' 113-meter onshore wind turbine blades are made of carbon fiber materials. Compared with steel plates of the same volume, the weight of the carbon fiber plate is only one-fifth of that of the steel plate, but the strength is twice that of the steel plate.