针对钢管的高速探伤需求，结合钢管漏磁检测原理及方法，提出并分析了高速漏磁检测关键技术，研制了一种基于钢管旋转的 180漏磁探伤系统。介绍了探伤轨迹规划以及设备总体布局，并重点描述了横向检测主机、纵向检测主机和退磁装置的设计原理和结构。实践证明，该高速漏磁探伤装备检测性能良好，符合相关标准规定的检测要求，可满足于钢管生产线的高速探伤需求。

In order to meet the increasingly huge demand for high-speed magnetic flux leakage steel pipe detecting equipment, based on the working principle and method for such equipment, the coauthors point out and analyze the critical techniques. The high-speed magnetic flux leakage  180 steel pipe detecting system has been developed, which is operating with the pipe rotating spirally. This paper has introduced the detecting trajectory planning and overall layout of this equipment. The design principle and structure of the core components such as the transverse and longitudinal defects detecting device and demagnetizer are described in detail. It has been proved in field application that the performance of the equipment is of high quality because it can meet both the testing requirements of the relevant standards and the high-speed testing requirements of steel pipe production line.