超声波自动探伤系统在焊管检测中的应用

,,,,(,062650)APPLICATIONOFULTRASONICAUTOMATICINSPECTIONSYSTEMTOWELDEDPIPESGAOZhi2ling,CAOHong2bo,DAIShu2ting,XIAODu2qin,WANGJian2min(NorthChinaPetroleumSteelPipeCo.,Ltd.,QingxianHebei062650,China):TG115.28:B:100026656(2002)1020446202,22,APIGB/T9711,,,,,,11.1[1],,,,,,,:20012082241(1),1mm,15mm1.2,1L,16mmL=L/8,K=2,sin0.9(),Lt=2LCsin=2LC0.9=2.2LCCC=3230m/s6t,6t,6442410200210NDTVol.24No.10Oct.2002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,6.5t6.5t=6.5L2.2C9s9s,22.122TFB(),n(n)tFtB,1,FB0,,,tFtBVFVB,A/D2.2tB,,tBtb,tb,2s,,tB,,,tb,tBtb,,;tb,,,,2.3:(1),|Ft(n-1)-Ft(n)|t(2)3.5t|tb-tF|6.5t,t;3.5t,,tb315t;6.5t1/4,2L,(B)6L,6.5t8t8.5t,,,(tb-tF),2.4,,,16,33744:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.200281517,27,1:2:,200215,2003610,15:(1)20036,,,,(2)200310,,,,122003,15,()16,,A/DVFVBI/OgFgBC/TtFtB,,,,,,,,3,,,,,,,,,,:[1],.[J].,2000,22(4):151.8442410200210NDTVol.24No.10Oct.2002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.