天然气管道焊缝的无损检测

Non-destructive Detection for Welded Line of Natutal Gas Pipeline

天然气管道是一种承受较高压力级制的特种管线,它的焊缝如果存在严重缺陷时,很有可能导致管道断裂爆炸等恶性事故。因此,对管道的焊缝进行无损检测就显得十分重要,而常用的无损检测手段有X射线检测、超声波检测、磁粉检测和渗透检测等方法。文章简要地介绍了这几种主要检测手段。

Natural gas pipeline is a kind of special pipeline to stand high pressure level, if its welded line isserious defected, it is possible to cause pipeline's rupture and exploration. So it is importmant to takenon-destructive detection for welded line. The normal non-destructive inspection methods are X-ray, supersonicdetection, magnet detection and penetration detection. The article briefly introduces these methods.