Problems and Difficulties in Spindle Detection:
Wind power spindle flaw detection is also a very important link in the field of wind power detection Blade Root Bushings. Wind power spindle is a long hollow structure, and there are many echoes in the processing steps. Traditional ultrasound is difficult to penetrate, even through it, it is difficult to distinguish signal sources. And the resolution of small defects is insufficient. Phased array can solve such problems perfectly. By using ultrasonic phased array technology, the micro-cracks in the rotating shaft can be found and treated accordingly.

 Blade Root Bushings

Blade Root Bushings

Problems and difficulties in bolt detection Blade Root Bushings:
For bolt detection, magnetic particle testing or conventional ultrasonic testing are usually used in traditional testing methods, but there are some limitations in bolt detection in service.
1. Most of the bolts in service are buried in the workpiece, and only part of the end is leaked out. Without disassembly, magnetic particle detection can not be carried out.
2. For long blade bolts or foundation bolts, the attenuation of conventional ultrasonic testing is large, which can not ensure that defects can be found, and the contact area is very small, so it is easy to miss detection.
3. Conventional ultrasound testing has no possibility of data or defect recording and no traceability.