The repair and repair technology of wind power spindle forgings refers to the work of detecting, evaluating and repairing the spindle forgings during the operation of wind power generation equipment. Due to the special working conditions and long-term operation of the wind farm, the main shaft forging may appear fatigue fracture, crack expansion, wear and other problems, and it is necessary to take timely repair measures to ensure the reliability and safety of the equipment.
Repair and restoration techniques include the following aspects:
- Testing and evaluation: Through non-destructive testing technology (such as ultrasonic testing, magnetic particle testing, eddy current testing, etc.) to carry out a comprehensive test of the spindle forging, assess the extent and location of the damage. At the same time, the overall geometric parameters of the spindle are evaluated using the dip measurement technology to determine whether repair is required.
- Defect repair: According to the specific situation of the spindle forging, different repair methods are used. For example, for defects such as fatigue fracture and crack growth, methods such as welding repair and heat treatment can be used to restore their strength and durability. For surface defects such as wear, grinding, spraying and other repair methods can be used to repair.
- Surface treatment: The surface treatment of the spindle forging is an important link in the repair and repair work. Through sandblasting, pickling, polishing and other methods to remove rust, oxides and surface contaminants, restore the surface flatness and finish. At the same time, coating technology (such as electroplating, spraying, etc.) can be used to increase the wear resistance and corrosion resistance of spindle forgings.
- Heat treatment and tempering: For the repaired spindle forgings, heat treatment and tempering are required when necessary to eliminate welding stress and improve the mechanical properties of the material. This improves the strength, toughness and durability of the spindle forgings, ensuring their reliable operation in wind power plants.
The research of rework and repair technology aims to improve the service life and reliability of wind power spindle forging, and reduce the equipment downtime and loss caused by forging damage. Through scientific and reasonable repair methods and technical means, the service life of the spindle forging can be extended, and the overall performance and economic benefits of wind power generation equipment can be improved.
