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TOFD and acceptance criteria: a perfect team

机译:TOFD和验收标准:完美的团队

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Non-destructive testing would not play the important role it plays these days, if good experience-based acceptance criteria for (weld) defects did not exist. The use of such criteria over the years, in combination with operational experience, has led to well-established routine NDT practice all over the world. When new NDT methods are developed and introduced, such criteria often do not exist. Most criteria are based on 'good old' radiography. This problem has been encountered during the introduction of mechanised ultrasonic techniques, for example welds in vessels and pipelines. Industry has already been struggling for decades to draft and introduce adapted criteria for such techniques, with varying levels of success. Still no internationally accepted criteria exist, not even a draft.
机译:如果不存在针对焊缝缺陷的基于经验的良好验收标准,那么无损检测将不会发挥重要作用。多年来使用这些标准,再加上操作经验,已导致在世界范围内建立良好的常规NDT惯例。当开发和引入新的无损检测方法时,通常不存在此类标准。大多数标准是基于“好旧”放射线照相。在引入机械化超声技术(例如容器和管道中的焊缝)时遇到了这个问题。数十年来,工业界一直在努力为这种技术起草和引入适应标准,并取得了不同程度的成功。仍然没有国际公认的标准,甚至没有草案。

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