薄壁长输管道对接焊缝超声波检测可靠性探讨

,,,(,310020):,,,6.4mm,:;;;;:TG115.28+5:A:100026656(2002)0120015205ADISCUSSIONONTHERELIABILITYOFULTRASONICTESTINGOFTHEBUTT2WELDEDSEAMSINTHIN2WALLLONG2DISTANCEPIPELINESGUOWei2chan,MAXia2kang,YUZhong2hua,SHIPing(ZhejiangBoilerandPressureVesselInspectionInstitute,Hangzhou310020,China)Abstract:Thesuitabletechnologicalparametersforultrasonictestingshouldbeselectedinaccordancewiththechar2acterofthin2walllong2distancepipelines.Aftertheexperimentalresearchonaseriesoftestspecimens,thereliabilityofultrasonictestingofthebutt2weldedseamsinthin2walllong2distancepipelinesisanalysedandprovedbyjobsitetesting.Keywords:Ultrasonictesting;Pipeline;Butt2weldedseam;Thin2wallweldedstructure;Reliability,153km,355mm,6.4mmSYJ040011990,100%,10%,,,8mm,6.4mm,1;L290;355mm;6.4mm;;:20002072201();,E6041,3.24mm;1SY406519932,,,(K)5124120021NDTVol.24No.1Jan.2002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,SY40651993,2.1[1],,,,,,SY4065199345MHz,,5MHz,52.5MHz1mm6mm,2ab,5MHz2.5MHz(a)(b)22.2KK[2],,KKa+b+l0T(1)abl0T,a12mm,b6mm,6.4mm,6mm,(1),K2.34SY40651993,58mm,K2.53K2.5K,,,K2.5,,K,SRB,K(1)1KSRBKKK1SL+14dBK2SL+5dBK1SL+12dBK2.5SL+3dBK1.5SL+3dBK3SL+2dB,K1,K1.5,,,K12.3,K2.5,,(1),7mm,6mm,[3],,,;,,,6mm6mm6mm9mm33.1CTS222;5P66K2.5,K2.5,6mm,5P66K1,;SGB25SRB;;2mm20mm-14dB;34dB3.2,20,,31mm6mm,h0,1,2,3.2,4.4,5.46.4mm,103.1,61:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.321)h/mm/R/%h/mm/R/%02204.499015505.466028806.43303.210100:1)10,2,RR=hh(2)2,,,,,,,,,,(),3.3,;,,,3.3.1,,,,,0.55,[4],0.5,,,;4a,4bc(a)(b)(c)43.3.2,,,(),0.5[4],,34mm,5a,5bc(a)(b)(c)571:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.3.3.3,,,,,,0.5[4],,,,K1,;6a,6bc(a)(b)(c)63.3.4,,,,,,[4],,,K1,,;7a,7bc3.3.5,,,,,,[4],,,;8a,8bc(a)(b)(c)7(a)(b)(c)83.3.6,,,,,[4],;9a,9bc4,81:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(a)(b)(c)93ZH93+395+417mmSL+2dB,10mmZH96+514mm6mmSL+0dB,10mmZH80+83.5mmSL+4dB,5mmZH327+914mm13mmSL+10dB,15mmZH2XS2S32150+5010mmSL+4dB,12mm;K1SL+10dB,,33,5(1)6.4mm(2)(3)(4):[1].[J].,1999(3):6-7.[2].[Z].:,1997.211-212.[3]..[M].:,1996.300-301.[4]BS39231986,[S].200281922,,Word,A4,25mm,,,1.25500,5000(),,:2002430:2002630:816:100095::[phone],6245662225065:[phone]:[e-mail]()91:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.