前言管道是化工装置的重要构件,管内载体大多是易燃,易爆或有毒介质。所以,必须重视施工时对焊接映陷的检查。由于这种检查应具备鉴别缺陷及纪录缺陷的能力,因此采用X射线探伤。此外,原有管道的维修检查也很重要。但受到一些条件的限制,如将探伤仪搬到检查现场比较困难,需要配备线源及检测器具,以及射线的防护设施等。 Preface Piping is an important component of chemical plant, most of the carrier pipe is flammable, explosive or toxic medium. Therefore, we must pay attention to the construction of the weld mapping of the settlement. Because of this inspection should have the ability to identify defects and record defects, so the use of X-ray flaw detection. In addition, the original pipeline maintenance inspection is also very important. However, subject to some conditions, such as the detector to move to the scene more difficult to test, you need to be equipped with a source and testing equipment, and radiation protection facilities.