A new magnetic leakage flux testing technique with a stationary probe and spiral transporting tubes was presented and its differences with traditional ones were analysed.

• 摘要介绍了一种新开发的“探头固定／钢管螺旋前进”的钢管漏磁探伤技术，分析了它与传统漏磁探伤方式的差异和优劣。