In the process of digital radiographic testing of small diameter pipe weld,it can only qualitatively indicate the existence of weld nodules,but can not accurately describe the height of weld nodules,which is easy to cause problems such as ball stuck in the pass ball test and plugging and bursting of weld joints during operation.Through the production of typical overlap samples combined with DR detection data,the measurement method of overlap size is studied.This method uses digital ray technology to find a method to measure overlap height size by using the gray changes of different heights of overlap,forming effective quality control and reducing the cost of handling quality problems.
NETL
NSTL
万方数据
