风电行业正在向大叶型、轻量化方向发展,复合材料拉挤板材应用愈发广泛。面对拉挤主梁多层板的新结构,如何检测拉挤主梁层间的灌注缺陷,成为业内亟待解决的新课题。对风电叶片行业中拉挤板成型主梁的超声检测方法进行研究,对比了常规超声检测和相控阵超声检测结果,总结了一套适合现场应用的超声检测方法。

With the development trend of large-leaf and lightweight in the wind power industry, composite extrusion plates have been widely used. In the face of the new structure of the multi-layer plate of the pultruded main beam, how to detect the perfusion defect between the pultruded main beam has become a new problem that nondestructive testing technicians need to solve. The ultrasonic detection method of the forming main beam of the extrusion plate in the wind power blade industry is studied. The results of conventional ultrasonic detection and phased array ultrasonic detection are compared, and a set of ultrasonic detection methods suitable for field use are summarised.