中图分类号：TB533+.2 文献标识码：A 文章编号：1672-4984（2007）04-0030-03
Application of acoustic emission testing technology in truck crane girder detection
TIAN Jian-jun， WAN Fu， DENG Yong-gang， YU ting， TAN Jing-fang
（Environmental Safety and Quality Supervision Detection Institute of Sichuan Petroleum Administration，Guanghang 618300，China）
Abstract： Many defects of truck crane girder caused by fatigue damage and bearing such as metabolic load, stress, et al. Were produced during long-term working, which would make the security of it reduced. Because those traditional nondestructive testing methods were time-consuming, laborious and difficult to apply on truck crane girder testing some totally new methods were needed. Acoustic emission testing technology could detect system catastrophic failure caused by unknown and discontinuous active defects, so whole flaw detection could be completed rapidly by loading and placing detector on the girder of truck crane. Statuses of truck crane girders, method plus testing results for applying acoustic emission testing techology to QY8C truck crane girder detection were focused on, and some problems of this technology were discussed too.
Key words： Crane； Crane girder; Acoustic emission testing technology; Evaluation