钢丝绳无损检测技术研究进展

针对钢丝绳应用及检测过程中安全性能、利用率、检测精度等问题,综合分析了现阶段钢丝绳无损检测国内外相关研究成果,总结并提出了今后的研究方向。首先,介绍了无损检测技术当前在实际工程中的应用,具体对比分析了两种主流探伤仪技术特点,以及在桥梁建筑等行业中的应用;接着,介绍了现在无损检测技术发展状况,着重论述了钢丝绳磁检测技术和非磁检测技术研究和应用现状,其中磁检测技术主要包括电磁法和永磁法,非磁检测主要包括电流法、声发射法和声-超声检测法;最后,在对比当前无损检测研究方法的基础上提出了集中钢丝绳无损检测的可行方法,指出了发展声-超声检测技术的研究趋势。

Progress on nondestructive testing technology of wire ropes

Aiming at the security, utilization, detection accuracy and other issues in the process of application and detection of wire rope, related research results of present nondestructive flaw detection of wire rope at home and abroad were analyzed comprehensively and the future trend of research was summarized. Firstly, the application of the nondestructive flaw detection in practical project was introduced, two kinds of specific technical characteristics of mainstream detectors were compared and analyzed, which were used in bridge construction and other industries.Then, the non-destructive testing teehnology＇s development was introduced, the detection technique of wire rope and the research on nonmagnetic detection technique as well as its application status were focused on. The magnetic detection techniques includes electromagnetic and permanent magnet law, non-magnetic detector includes current testing method,acoustic emission and sound - ultrasonic testing method.Finally, after comparing the research methods of present nondestructive flaw detection, the feasible method for concentrated nondestructive flaw detection of wire rope was proposed.The results indicate that the trend is to develop sound- ultrasound detection technique.