船舶对接焊缝X射线照相检测底片上白色影像的探讨

Exploration of White Images on X-ray Radiographic Detection Negatives of Ship Butt Welds

X射线照相技术是检测船舶对接焊缝内部质量的重要手段之一,进行射线照相检测时,底片一侧多次发现有白色影像出现。产生白色影像的主要原因是暗袋摆放位置偏离射线机窗口中心。通过采取一定的措施,确保暗袋中心对准射线机窗口中心后再次拍摄,底片上无白色影像出现,解决了底片一侧出现白色影像的问题,为船舶对接焊缝X射线照相检测操作提供一定的参考。

X-ray radiography is one of the important means to detect the internal quality of ship butt welds,and when radiographic detection is carried out,white images are found on one side of the negative several times.The main reason to shape white images is that the position of dark bag is off the center of the window of the radiographic machine.By taking certain measures to ensure that the center of the dark bag is aligned with the center of the window of the radiographic machine and then taken again,no white images appear on the negative,which solves the problem of white images on one side of the negative and provides certain reference for the operation of X-ray radiographic detection of ship butt welds.