Why is wind turbine blade grinding important?

—A key player in wind power - wind turbine blades

Why is wind turbine blade grinding important?

The wind turbine blade is the most basic and critical component of a wind turbine. Its good design, reliable quality and superior performance are decisive factors in ensuring the normal and stable operation of the unit. In wind turbines, the blade design has a direct impact on the conversion efficiency of the wind energy and directly affects its annual power production, which is an important part of the wind energy utilization.
                                                  
Large wind turbine blade using the process has two main, open mould hand lay-up and closed mould vacuum dip. The latter is commonly used, where the reinforcing material is first laid over a silicone-coated mould. In advanced modern plants, special lay-up machines are used for lay-up, followed by vacuum-assisted infiltration technology to feed the base resin. After curing, the blades are sent to the next stage of the process by automatically operated equipment for grinding and polishing, etc. Because the moulds are coated with silicone, the blades mostly no longer need to be painted.

How are diamond/CBN polishing film belts used in blade grinding?

        
 The most commonly used abrasives are coated abrasives, i.e. paper-based and steel-paper polishing film belt. In more specific terms, in wind turbine blade grinding applications you can use Moresuperhard's diamond/CBN paper-backed or steel paper-backed polishing film belts. The grit size of the abrasive is an important parameter in determining the coarseness of the abrasive and the cutting power. Normally, the coarseness of the abrasive is described by the number of mesh, i.e. the number of holes per unit area of the grid sieve used to screen the mineral sand. The larger the number, the more holes per unit area of the mesh, which means the fineness of the abrasive particles, and the coarser and finer the abrasive can be judged.
                                            
                                            


The particle size of coated abrasives consists of several discrete integers with a total of 25 particle sizes, namely 12, 24, 36, 40, 50, 60, 80, 100, 120, 150, 180, 220, 240, 280, 320, 360, 400, 500, 600, 800, 1000, 1200, 1500, 2000, 2500. Therefore, when choosing the abrasives to use, it is important to find out what the abrasive grit size represents.

How do we choose an abrasive tool?

           
Abrasive tools can be divided into electric and pneumatic abrasive tools according to the type of power used. Electric tools are usually powerful and have the characteristic of being low, but they are heavy and have a short service life. Pneumatic tools are lighter, safer and have a longer service life, but can lose speed during rotary grinding. Currently, the use of pneumatic tools for sanding is more popular.

In the process of the energy revolution, wind energy is inexhaustible, and the use of wind power can reduce environmental pollution, saving coal, oil and other conventional energy. Moresuperhard is also committed to providing better quality grinding processes for equipment in the energy industry and hopes to promote win-win cooperation with our customers through more exchanges and cooperation.If you would like to know more about our products or have any questions, please feel free to leave us a message and we will get in touch with you as soon as possible!