管系环焊缝射线检测透照次数计算

Calculation of Penetrate Times for Piping Weld Radiographic Testing

本文讨论了ASME V和CB/T3558两个标准的相关条款,并根据工件规格及X射线机曝光曲线,计算出管系环向对接焊缝符合ASME V标准要求的一次透照长度,为现场实际操作提供参考,提高射线检测工作效率。

This paper discusses about the relevant clauses of ASME V and CB/T3558,and use workpiece specifications and X-ray exposure curve to calculate the effective length of circumferential butt weld in accordance with ASME V standard.This parameter can provide reference for the actual operation.The calculation of the maximum effective length can improve the efficiency of X-ray detection.