改进型汽轮机叶轮超声ALOK成象检测系统  

ULTRASONIC INSPECTION SYSTEM FOR TURBINE SHRUNK-ON WHEELS BY ADVANCED ALOK METHOD

作　　者：黄顺宜[1] 陈晖[1] 张家平[2] 

机构地区：[1]四川电力试验研究院,610072 [2]东南大学,210018

出　　处：《无损检测》1996年第4期91-94,共4页Nondestructive Testing

摘　　要：介绍最新研制的汽轮机叶轮超声改进型ALOK成象检测系统,该系统由计算机控制对在役汽轮机叶轮键槽裂纹进行自动化检测,用超声统计成象技术对裂纹定位和定量。整个系统操作简便,无需用试块做扫描速度和灵敏度调节,检测可靠性和重复性好,灵敏度和精度较高。Newly developed ultrasonic inspection system for turbine shrunk-on wheels by advanced ALOK method is described, which can be used for automatic in-service crack detection with computer and for crack siz-ing and locating by statistic imaging technique. The system is easy for operation, good in reliability and repeata-bility, and high in sensitivity and precision.

关 键 词：ALOK 超声检测 汽轮机 叶轮 成象 

分 类 号：TK263.61[动力工程及工程热物理—动力机械及工程] TG115.285[金属学及工艺—物理冶金]