管道对接焊缝未焊透自身高度黑度补偿测定方法研究

(,200237),STUDYONMEASURINGTHEHEIGHTOFLACKOFPENETRATIONINBUTTWELDOFPIPINGBYDENSITYCOMPENSATIONZhangJianxinLiuQingyanZhuTaoLiYunfang(CollegeofMechanicalEngineering,EastChinaUniversityofScienceandTechnology)AbstractTherelationshipsbetweentheheightoflackofpenetrationandthedepthofthegrooveinreferenceblockbasedonexperimentaldataarediscussed.Thusthedensitycompensationmethodforestimatingtheheightoflackofpenetrationinbuttweldofpipingisproposed.KeywordsRadiographicinspectionPipingWeldDensitycompensation,,,,11.1,X$T$D[1,2]$D-0.434CRLQ$TCLQ,(LQ;,R)$D$T,,,,1.2,89mm3.5mm,76mm3.5mm(1)12mm,0.5,1.0,1.52.0mm,2mm,12mm,,,GRETAG2D200,2,,3,,1542210200010NDTVol.22No.10Oct.2000©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.232(1.53.0),,,1.344A(+)B,t,T,TDTDT,B,A(),:(1)A=B,DT=DT,T=T,,(2)AB,DT=DT,TT,,,(),(3)AB,DT=DT,TT,,,,XX;XX1.45a,2,4,68mm0.5,1.02.0mm(),89mm4mm(5b),,,(a)(b)5mmömm0.51.02.021.892.192.412.042.342.522.102.482.7841.491.681.811.561.781.951.662.052.2761.051.151.341.231.391.491.411.651.7980.921.041.241.121.301.351.201.471.542.503.003.302.503.003.302.503.003.30254:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.62.0mm:6(1),;,(2),,,(3),,6(4)(5),(6)2772(1),,,(2),5mm,(),5mm(3),2,3,31.4mm,,,3.15-33100%=5%1.5-1.41.4100%=7%4,,,(2mm),10%,,,,2mm(2mm),,,1,.B.:,1988.2,..:,1992.:1999210215354:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.