无损检测工艺规程(对接焊缝射线)_图文NJBSTCo.,-012Rev.:0Page:11of17Title:RADIOGRAPHICEXAMINATIONPROCEDUREFORBUTTWELDS表9许用几何不清晰度in(eptableUnsharpnessThicknessofMaterial<2(<51Ugmax≤(≤<2(<51Ugmax,≤(≤:Ug=Fd/DWhere:F=sourcesize:(==,,itshallbebasedontheexaminationinstructionpreparedbytheLevelⅢ,'~8'(200CStopbathing1'fixing15'washing15'~20'wetting30"drying15'(600C程序时间按照下述公式来确定底片的几何不清晰度:Ug=Fd/D其中:F=射源尺寸:射源(--
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