The wind power flange is a structural member that connects each section of the tower or between the tower and the hub, or between the hub and the blades. It is usually connected by bolts.
Wind power flange is simply the flange of wind turbine. Wind power flange is also called wind tower flange. Its process flow mainly includes the following steps:
1. Source of raw materials, refining and export of flaw detection plates
2. After the materials enter the factory Re-inspected by the County Technical Supervision Bureau
3. The material is cut by a large sawing machine
4. The raw materials are heated in the heating furnace
5. Top punching is repeated Forging and forming
6. Normalizing, annealing and heat treatment
7. Rough machining after heat treatment
8. Fine machining after passing the test
Extended information:
Principle of wind power flange:
The material used in wind power flange is low alloy high-strength steel Q345E/S355NL, the lowest temperature of the working environment is close to -40℃, and the maximum wind resistance can reach level 12. The heat treatment requirement is normalizing. The normalizing process refines the grains, uniformizes the structure, improves structural defects, and improves the quality of the forged flange. Comprehensive mechanical properties.
The degree of normalizing has a great influence on the structure. The appropriate temperature can refine the grains and obtain good performance. If the temperature is too low, the effect will be insignificant; if the temperature is too high, the grains will become coarse and Widmanstatten structure will easily form, which will reduce the performance.
The mechanical properties test and organizational observation were conducted on the normalizing process of the forged flange before and after the improvement. The results show that a flange with better comprehensive mechanical properties can be obtained by using appropriate normalizing process.
Baidu Encyclopedia-Korea Wind Power Flange
Baidu Encyclopedia-Flange