【摘 要】
：
在锅炉、压力容器、压力管道的制造及在役压力容器的定期检验工作中 ,X射线探伤拍片是常用的一种重要检验手段。由于操作上的一些原因 ,往往造成一些底片白头 ,它使底片黑度
【机 构】
：
益阳锅炉压力容器检验所 益阳413000
论文部分内容阅读
在锅炉、压力容器、压力管道的制造及在役压力容器的定期检验工作中 ,X射线探伤拍片是常用的一种重要检验手段。由于操作上的一些原因 ,往往造成一些底片白头 ,它使底片黑度达不到要求 ,以致有效评定长度缩短 ,焊缝的实际探伤比例下降 ,它是 X射线探伤的大忌。小管径 ( ≤ 76 m
In the manufacture of boilers, pressure vessels, pressure pipes and in-service pressure vessel inspection, X-ray inspection is an important and commonly used test. Due to some operational reasons, often cause some negatives, it makes the blackness of the film does not meet the requirements, resulting in an effective assessment of shortening the length of the weld, the proportion of the actual test decreased, it is taboo X-ray inspection. Small diameter (≤ 76 m
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