汽轮机焊接隔板的超声相控阵检测  

Ultrasonic Phased Array Inspection for Turbine Welded Diaphragm

作　　者：王中亚 

机构地区：[1]中国大唐集团科学技术研究院有限公司华东分公司,合肥230088

出　　处：《无损检测》2017年第4期60-63,共4页Nondestructive Testing

摘　　要：分析了汽轮机焊接隔板检测时选择超声相控阵技术的原因,阐述了检测工艺中关键参数的选取,并将制定的工艺应用于某百万机组的在制隔板检测。结果表明,所选择的隔板超声相控阵检测工艺是可靠的;使用的工件加载系统的工件CAD图形加载功能降低了缺陷识别难度,提高了工艺适用性和检测效率,值得推广。This article reasons the selection of ultrasonic phased array inspection technology for turbine welded diaphragm. How to determine the key process parameters is expounded and the designed process is applied to the inspection in manufacturing process of diaphragms of a 1000MW class power unit. The results show that ultrasonic phased array inspection process for welded diaphragm is reliable. The workpiece CAD loading function of workpiece loading system reduces the difficulty of defect signal recognition, improves the suitability and the detecting efficiency, which is worthy to be popularized.

关 键 词：百万机组 汽轮机 焊接隔板 超声相控阵检测 

分 类 号：TG115.28[金属学及工艺—物理冶金]