下向焊对接焊缝的X射线探伤

X(,121001)XRADIOGRAPHICINSPECTIONOFDOWNWARDBUTTWELDEDSEAMSPIAOZhi2gang(JinzhouPetrochemicalEngineeringCompany,Jinzhou121001,China):TG115.28:B:100026656(2003)07203802012000520013,(325mm10mm,273mm8mm,159mm8mm)X50,,,12505X,2NL3100%NL3,,Ug=dfL2/(F-L2),F,Ug,,JB47301994L1dfL21[1]1L1UgA7.5dfL2/322L1/32/15AB10dfL2/32L1/32/10B15dfL2/32L1/32/15:20022062241F=L1+L2,F100%NL3(1)N=3602=180=+=arccos1K=arcsinDsin2F-DKDL3=DN325mm,K=1.1,D=325mm,F=600mmN=6,L3=170mm273mmN=6,L3=142mm;159mmN=7,L3=71mm,,,NL3,AB08325720037NDTVol.25No.7July2003©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.2003()2003()2003102830,,;;;;;;;,,:30,:210024,:,E2mail:[e-mail][e-mail],:862252663201486225233211282404,:8622526632014,:()2003(UT),(RT),(MT),(PT)(ET)(),:UT:71281,9119,101331,1117125RT:7314,12819MT:81829,11314PT:102027ET:8411,122229:100():UT,RT,ET1200/:MT,PT1000/:,,,,,():100,:200437,:,:(021)65556775412,482,:(021)55888795200600mm:FD,2,N=180/,=1518,Nmin=65F,,N=180/,=1518,Nmax=12103,,,;,,4,,,,,,5min,,,:[1]JB47301994,[S].18325720037NDTVol.25No.7July2003©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.