在石油、化工厂的建设和日常维修中,对管道的对接焊缝检验,X射线透视是常用手段之一,这些管道很多是处于高温、高压及腐蚀介质中工作,因此,对无损检测人员来说,如何正确掌握管道对接焊缝X射线透视方法,对保证焊缝质量,确保安全生产是非常重要的。目前在国内,对管道对接焊缝的透视方法,绝大多数使用角度法,透照时让管道对接焊缝与射线柜成一定角度(一般采用10°～15°),使前焊缝在照相上的 In the construction of petroleum and chemical plants and routine maintenance, butt weld inspection of pipelines, X-ray fluoroscopy is one of the commonly used means, many of these pipes are working in high temperature, high pressure and corrosive media, therefore, non-destructive testing personnel to That, how to correctly grasp the pipe butt weld X-ray fluoroscopy, to ensure the quality of the weld, to ensure safe production is very important. At present in China, most of the perspective methods of butt welding of pipelines use the angle method, which makes the butt-welded pipe and ray-ray cabinet at an angle (generally 10 ° ~ 15 °) during the transillumination to make the front weld be photographed Up