摘要:
高速钢轧辊凭借其优良的性能, 在轧钢行业得到越来越广泛的运用。但是长期以来, 对于高速钢轧辊表面缺陷的检测主要依靠人工检测手段来进行, 不仅效率低, 劳动强度大, 而且容易造成缺陷的漏检。为了解决这一问题, 宝钢从日本KRAUTKRAMER公司引进了安装在轧辊磨床上的轧辊自动超声探伤设备, 用于高速钢轧辊的自动检测。重点介绍了KRAUTKRAMER轧辊自动超声探伤设备的组成结构、使用的超声探头和超声波波动形式, 缺陷信号显示的形式及其判读, 执行的判废标准, 以及几个缺陷信号判读的实例。分析了高速钢轧辊自动表面波探伤的过程和形成的图谱, 并总结了一种新的高速钢轧辊探伤标准。
Abstract:
HSS roll is widely used in the steel manufactory because of its nice performance. But the detecting work on the roll surface is normally done by hand. The efficiency is too low, and the work is too hard by this way. Furthermore, some small cracks may be skipped over. In order to solve this problem, Baosteel company imported a surface wave detector from KRAUTKRAMER company in Japan, which was installed on the roll grinder and was used for detecting the HSS roll automatically. The paper introduces the principle of the KRAUTKRAMER surface wave detector, and introduces the inspection map of the ultrasonic surface wave detector. The paper also summarizes a new detect criterion for the HSS roll.
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